From 5474c2f041c486b7c963037dcb4bbadab03ed8bb Mon Sep 17 00:00:00 2001
From: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Date: Mon, 19 Sep 2022 15:42:03 +0000
Subject: [PATCH] feat: Add Secure Boot support to TPU v2alpha1 API

PiperOrigin-RevId: 474644226

Source-Link: https://github.com/googleapis/googleapis/commit/f90b329a7eb583a21a20796892b993e91e8ccf34

Source-Link: https://github.com/googleapis/googleapis-gen/commit/4ad8763bde676f92a3eb70753ae1cfed0e81387e
Copy-Tag: eyJwIjoiamF2YS10cHUvLk93bEJvdC55YW1sIiwiaCI6IjRhZDg3NjNiZGU2NzZmOTJhM2ViNzA3NTNhZTFjZmVkMGU4MTM4N2UifQ==
---
 .../com/google/cloud/tpu/v1/TpuClient.java    | 1838 +++++
 .../com/google/cloud/tpu/v1/TpuSettings.java  |  371 +
 .../google/cloud/tpu/v1/gapic_metadata.json   |   51 +
 .../com/google/cloud/tpu/v1/package-info.java |   43 +
 .../tpu/v1/stub/GrpcTpuCallableFactory.java   |  113 +
 .../google/cloud/tpu/v1/stub/GrpcTpuStub.java |  582 ++
 .../com/google/cloud/tpu/v1/stub/TpuStub.java |  148 +
 .../cloud/tpu/v1/stub/TpuStubSettings.java    |  973 +++
 .../java/com/google/cloud/tpu/v1/MockTpu.java |   59 +
 .../com/google/cloud/tpu/v1/MockTpuImpl.java  |  288 +
 .../google/cloud/tpu/v1/TpuClientTest.java    | 1083 +++
 .../java/com/google/cloud/tpu/v1/TpuGrpc.java | 1168 ++++
 .../google/cloud/tpu/v1/AcceleratorType.java  |  761 ++
 .../cloud/tpu/v1/AcceleratorTypeName.java     |  227 +
 .../tpu/v1/AcceleratorTypeOrBuilder.java      |   49 +
 .../google/cloud/tpu/v1/CloudTpuProto.java    |  454 ++
 .../cloud/tpu/v1/CreateNodeRequest.java       |  997 +++
 .../tpu/v1/CreateNodeRequestOrBuilder.java    |   76 +
 .../cloud/tpu/v1/DeleteNodeRequest.java       |  595 ++
 .../tpu/v1/DeleteNodeRequestOrBuilder.java    |   29 +
 .../tpu/v1/GetAcceleratorTypeRequest.java     |  595 ++
 .../GetAcceleratorTypeRequestOrBuilder.java   |   29 +
 .../google/cloud/tpu/v1/GetNodeRequest.java   |  595 ++
 .../cloud/tpu/v1/GetNodeRequestOrBuilder.java |   29 +
 .../tpu/v1/GetTensorFlowVersionRequest.java   |  595 ++
 .../GetTensorFlowVersionRequestOrBuilder.java |   29 +
 .../tpu/v1/ListAcceleratorTypesRequest.java   | 1173 ++++
 .../ListAcceleratorTypesRequestOrBuilder.java |   99 +
 .../tpu/v1/ListAcceleratorTypesResponse.java  | 1282 ++++
 ...ListAcceleratorTypesResponseOrBuilder.java |  114 +
 .../google/cloud/tpu/v1/ListNodesRequest.java |  841 +++
 .../tpu/v1/ListNodesRequestOrBuilder.java     |   59 +
 .../cloud/tpu/v1/ListNodesResponse.java       | 1282 ++++
 .../tpu/v1/ListNodesResponseOrBuilder.java    |  114 +
 .../tpu/v1/ListTensorFlowVersionsRequest.java | 1173 ++++
 ...istTensorFlowVersionsRequestOrBuilder.java |   99 +
 .../v1/ListTensorFlowVersionsResponse.java    | 1282 ++++
 ...stTensorFlowVersionsResponseOrBuilder.java |  114 +
 .../com/google/cloud/tpu/v1/LocationName.java |  192 +
 .../google/cloud/tpu/v1/NetworkEndpoint.java  |  675 ++
 .../tpu/v1/NetworkEndpointOrBuilder.java      |   39 +
 .../java/com/google/cloud/tpu/v1/Node.java    | 5143 ++++++++++++++
 .../com/google/cloud/tpu/v1/NodeName.java     |  217 +
 .../google/cloud/tpu/v1/NodeOrBuilder.java    |  528 ++
 .../cloud/tpu/v1/OperationMetadata.java       | 1653 +++++
 .../tpu/v1/OperationMetadataOrBuilder.java    |  155 +
 .../cloud/tpu/v1/ReimageNodeRequest.java      |  761 ++
 .../tpu/v1/ReimageNodeRequestOrBuilder.java   |   49 +
 .../google/cloud/tpu/v1/SchedulingConfig.java |  591 ++
 .../tpu/v1/SchedulingConfigOrBuilder.java     |   29 +
 .../google/cloud/tpu/v1/StartNodeRequest.java |  595 ++
 .../tpu/v1/StartNodeRequestOrBuilder.java     |   29 +
 .../google/cloud/tpu/v1/StopNodeRequest.java  |  595 ++
 .../tpu/v1/StopNodeRequestOrBuilder.java      |   29 +
 .../java/com/google/cloud/tpu/v1/Symptom.java | 1337 ++++
 .../google/cloud/tpu/v1/SymptomOrBuilder.java |   95 +
 .../cloud/tpu/v1/TensorFlowVersion.java       |  761 ++
 .../cloud/tpu/v1/TensorFlowVersionName.java   |  231 +
 .../tpu/v1/TensorFlowVersionOrBuilder.java    |   49 +
 .../proto/google/cloud/tpu/v1/cloud_tpu.proto |  622 ++
 .../tpustubsettings/getnode/SyncGetNode.java  |   45 +
 .../SyncCreateSetCredentialsProvider.java     |   44 +
 .../create/SyncCreateSetEndpoint.java         |   40 +
 .../tpuclient/createnode/AsyncCreateNode.java |   52 +
 .../createnode/AsyncCreateNodeLRO.java        |   53 +
 .../tpuclient/createnode/SyncCreateNode.java  |   48 +
 .../SyncCreateNodeLocationnameNodeString.java |   44 +
 .../SyncCreateNodeStringNodeString.java       |   44 +
 .../tpuclient/deletenode/AsyncDeleteNode.java |   49 +
 .../deletenode/AsyncDeleteNodeLRO.java        |   51 +
 .../tpuclient/deletenode/SyncDeleteNode.java  |   46 +
 .../deletenode/SyncDeleteNodeNodename.java    |   42 +
 .../deletenode/SyncDeleteNodeString.java      |   42 +
 .../AsyncGetAcceleratorType.java              |   52 +
 .../SyncGetAcceleratorType.java               |   48 +
 ...GetAcceleratorTypeAcceleratortypename.java |   43 +
 .../SyncGetAcceleratorTypeString.java         |   43 +
 .../v1/tpuclient/getnode/AsyncGetNode.java    |   49 +
 .../tpu/v1/tpuclient/getnode/SyncGetNode.java |   46 +
 .../getnode/SyncGetNodeNodename.java          |   42 +
 .../tpuclient/getnode/SyncGetNodeString.java  |   42 +
 .../AsyncGetTensorFlowVersion.java            |   52 +
 .../SyncGetTensorFlowVersion.java             |   48 +
 .../SyncGetTensorFlowVersionString.java       |   43 +
 ...ensorFlowVersionTensorflowversionname.java |   43 +
 .../AsyncListAcceleratorTypes.java            |   58 +
 .../AsyncListAcceleratorTypesPaged.java       |   66 +
 .../SyncListAcceleratorTypes.java             |   54 +
 ...stAcceleratorTypesAcceleratortypename.java |   45 +
 .../SyncListAcceleratorTypesString.java       |   45 +
 .../tpuclient/listnodes/AsyncListNodes.java   |   53 +
 .../listnodes/AsyncListNodesPaged.java        |   61 +
 .../v1/tpuclient/listnodes/SyncListNodes.java |   50 +
 .../listnodes/SyncListNodesLocationname.java  |   44 +
 .../listnodes/SyncListNodesString.java        |   44 +
 .../AsyncListTensorFlowVersions.java          |   58 +
 .../AsyncListTensorFlowVersionsPaged.java     |   66 +
 .../SyncListTensorFlowVersions.java           |   54 +
 .../SyncListTensorFlowVersionsString.java     |   45 +
 ...nsorFlowVersionsTensorflowversionname.java |   45 +
 .../reimagenode/AsyncReimageNode.java         |   49 +
 .../reimagenode/AsyncReimageNodeLRO.java      |   51 +
 .../reimagenode/SyncReimageNode.java          |   46 +
 .../tpuclient/startnode/AsyncStartNode.java   |   45 +
 .../startnode/AsyncStartNodeLRO.java          |   47 +
 .../v1/tpuclient/startnode/SyncStartNode.java |   42 +
 .../v1/tpuclient/stopnode/AsyncStopNode.java  |   45 +
 .../tpuclient/stopnode/AsyncStopNodeLRO.java  |   47 +
 .../v1/tpuclient/stopnode/SyncStopNode.java   |   42 +
 .../v1/tpusettings/getnode/SyncGetNode.java   |   45 +
 .../google/cloud/tpu/v2alpha1/TpuClient.java  | 1977 ++++++
 .../cloud/tpu/v2alpha1/TpuSettings.java       |  394 ++
 .../cloud/tpu/v2alpha1/gapic_metadata.json    |   57 +
 .../cloud/tpu/v2alpha1/package-info.java      |   45 +
 .../v2alpha1/stub/GrpcTpuCallableFactory.java |  115 +
 .../cloud/tpu/v2alpha1/stub/GrpcTpuStub.java  |  655 ++
 .../cloud/tpu/v2alpha1/stub/TpuStub.java      |  162 +
 .../tpu/v2alpha1/stub/TpuStubSettings.java    | 1018 +++
 .../google/cloud/tpu/v2alpha1/MockTpu.java    |   59 +
 .../cloud/tpu/v2alpha1/MockTpuImpl.java       |  332 +
 .../cloud/tpu/v2alpha1/TpuClientTest.java     | 1184 ++++
 .../google/cloud/tpu/v2alpha1/TpuGrpc.java    | 1340 ++++
 .../cloud/tpu/v2alpha1/AcceleratorType.java   |  761 ++
 .../tpu/v2alpha1/AcceleratorTypeName.java     |  227 +
 .../v2alpha1/AcceleratorTypeOrBuilder.java    |   49 +
 .../cloud/tpu/v2alpha1/AccessConfig.java      |  595 ++
 .../tpu/v2alpha1/AccessConfigOrBuilder.java   |   29 +
 .../cloud/tpu/v2alpha1/AttachedDisk.java      |  891 +++
 .../tpu/v2alpha1/AttachedDiskOrBuilder.java   |   54 +
 .../cloud/tpu/v2alpha1/CloudTpuProto.java     |  665 ++
 .../cloud/tpu/v2alpha1/CreateNodeRequest.java |  997 +++
 .../v2alpha1/CreateNodeRequestOrBuilder.java  |   76 +
 .../cloud/tpu/v2alpha1/DeleteNodeRequest.java |  595 ++
 .../v2alpha1/DeleteNodeRequestOrBuilder.java  |   29 +
 .../GenerateServiceIdentityRequest.java       |  597 ++
 ...nerateServiceIdentityRequestOrBuilder.java |   29 +
 .../GenerateServiceIdentityResponse.java      |  667 ++
 ...erateServiceIdentityResponseOrBuilder.java |   36 +
 .../v2alpha1/GetAcceleratorTypeRequest.java   |  597 ++
 .../GetAcceleratorTypeRequestOrBuilder.java   |   29 +
 .../v2alpha1/GetGuestAttributesRequest.java   | 1023 +++
 .../GetGuestAttributesRequestOrBuilder.java   |   94 +
 .../v2alpha1/GetGuestAttributesResponse.java  |  874 +++
 .../GetGuestAttributesResponseOrBuilder.java  |   53 +
 .../cloud/tpu/v2alpha1/GetNodeRequest.java    |  595 ++
 .../tpu/v2alpha1/GetNodeRequestOrBuilder.java |   29 +
 .../v2alpha1/GetRuntimeVersionRequest.java    |  597 ++
 .../GetRuntimeVersionRequestOrBuilder.java    |   29 +
 .../cloud/tpu/v2alpha1/GuestAttributes.java   |  845 +++
 .../tpu/v2alpha1/GuestAttributesEntry.java    |  927 +++
 .../GuestAttributesEntryOrBuilder.java        |   69 +
 .../v2alpha1/GuestAttributesOrBuilder.java    |   60 +
 .../tpu/v2alpha1/GuestAttributesValue.java    |  872 +++
 .../GuestAttributesValueOrBuilder.java        |   53 +
 .../v2alpha1/ListAcceleratorTypesRequest.java | 1175 ++++
 .../ListAcceleratorTypesRequestOrBuilder.java |   99 +
 .../ListAcceleratorTypesResponse.java         | 1284 ++++
 ...ListAcceleratorTypesResponseOrBuilder.java |  114 +
 .../cloud/tpu/v2alpha1/ListNodesRequest.java  |  841 +++
 .../v2alpha1/ListNodesRequestOrBuilder.java   |   59 +
 .../cloud/tpu/v2alpha1/ListNodesResponse.java | 1282 ++++
 .../v2alpha1/ListNodesResponseOrBuilder.java  |  114 +
 .../v2alpha1/ListRuntimeVersionsRequest.java  | 1175 ++++
 .../ListRuntimeVersionsRequestOrBuilder.java  |   99 +
 .../v2alpha1/ListRuntimeVersionsResponse.java | 1284 ++++
 .../ListRuntimeVersionsResponseOrBuilder.java |  114 +
 .../cloud/tpu/v2alpha1/LocationName.java      |  192 +
 .../cloud/tpu/v2alpha1/NetworkConfig.java     |  871 +++
 .../tpu/v2alpha1/NetworkConfigOrBuilder.java  |   67 +
 .../cloud/tpu/v2alpha1/NetworkEndpoint.java   |  911 +++
 .../v2alpha1/NetworkEndpointOrBuilder.java    |   66 +
 .../com/google/cloud/tpu/v2alpha1/Node.java   | 6092 +++++++++++++++++
 .../google/cloud/tpu/v2alpha1/NodeName.java   |  217 +
 .../cloud/tpu/v2alpha1/NodeOrBuilder.java     |  654 ++
 .../cloud/tpu/v2alpha1/OperationMetadata.java | 1653 +++++
 .../v2alpha1/OperationMetadataOrBuilder.java  |  155 +
 .../cloud/tpu/v2alpha1/RuntimeVersion.java    |  761 ++
 .../tpu/v2alpha1/RuntimeVersionName.java      |  227 +
 .../tpu/v2alpha1/RuntimeVersionOrBuilder.java |   49 +
 .../cloud/tpu/v2alpha1/SchedulingConfig.java  |  591 ++
 .../v2alpha1/SchedulingConfigOrBuilder.java   |   29 +
 .../cloud/tpu/v2alpha1/ServiceAccount.java    |  862 +++
 .../tpu/v2alpha1/ServiceAccountOrBuilder.java |   76 +
 .../cloud/tpu/v2alpha1/ServiceIdentity.java   |  595 ++
 .../v2alpha1/ServiceIdentityOrBuilder.java    |   29 +
 .../tpu/v2alpha1/ShieldedInstanceConfig.java  |  510 ++
 .../ShieldedInstanceConfigOrBuilder.java      |   19 +
 .../cloud/tpu/v2alpha1/StartNodeRequest.java  |  595 ++
 .../v2alpha1/StartNodeRequestOrBuilder.java   |   29 +
 .../cloud/tpu/v2alpha1/StopNodeRequest.java   |  595 ++
 .../v2alpha1/StopNodeRequestOrBuilder.java    |   29 +
 .../google/cloud/tpu/v2alpha1/Symptom.java    | 1337 ++++
 .../cloud/tpu/v2alpha1/SymptomOrBuilder.java  |   95 +
 .../cloud/tpu/v2alpha1/UpdateNodeRequest.java |  913 +++
 .../v2alpha1/UpdateNodeRequestOrBuilder.java  |   66 +
 .../google/cloud/tpu/v2alpha1/cloud_tpu.proto |  791 +++
 .../tpustubsettings/getnode/SyncGetNode.java  |   45 +
 .../SyncCreateSetCredentialsProvider.java     |   44 +
 .../create/SyncCreateSetEndpoint.java         |   40 +
 .../tpuclient/createnode/AsyncCreateNode.java |   52 +
 .../createnode/AsyncCreateNodeLRO.java        |   53 +
 .../tpuclient/createnode/SyncCreateNode.java  |   48 +
 .../SyncCreateNodeLocationnameNodeString.java |   44 +
 .../SyncCreateNodeStringNodeString.java       |   44 +
 .../tpuclient/deletenode/AsyncDeleteNode.java |   49 +
 .../deletenode/AsyncDeleteNodeLRO.java        |   51 +
 .../tpuclient/deletenode/SyncDeleteNode.java  |   46 +
 .../deletenode/SyncDeleteNodeNodename.java    |   42 +
 .../deletenode/SyncDeleteNodeString.java      |   42 +
 .../AsyncGenerateServiceIdentity.java         |   50 +
 .../SyncGenerateServiceIdentity.java          |   46 +
 .../AsyncGetAcceleratorType.java              |   52 +
 .../SyncGetAcceleratorType.java               |   48 +
 ...GetAcceleratorTypeAcceleratortypename.java |   43 +
 .../SyncGetAcceleratorTypeString.java         |   43 +
 .../AsyncGetGuestAttributes.java              |   53 +
 .../SyncGetGuestAttributes.java               |   49 +
 .../tpuclient/getnode/AsyncGetNode.java       |   49 +
 .../tpuclient/getnode/SyncGetNode.java        |   46 +
 .../getnode/SyncGetNodeNodename.java          |   42 +
 .../tpuclient/getnode/SyncGetNodeString.java  |   42 +
 .../AsyncGetRuntimeVersion.java               |   50 +
 .../SyncGetRuntimeVersion.java                |   47 +
 ...ncGetRuntimeVersionRuntimeversionname.java |   43 +
 .../SyncGetRuntimeVersionString.java          |   43 +
 .../AsyncListAcceleratorTypes.java            |   58 +
 .../AsyncListAcceleratorTypesPaged.java       |   66 +
 .../SyncListAcceleratorTypes.java             |   54 +
 ...stAcceleratorTypesAcceleratortypename.java |   45 +
 .../SyncListAcceleratorTypesString.java       |   45 +
 .../tpuclient/listnodes/AsyncListNodes.java   |   53 +
 .../listnodes/AsyncListNodesPaged.java        |   61 +
 .../tpuclient/listnodes/SyncListNodes.java    |   50 +
 .../listnodes/SyncListNodesNodename.java      |   44 +
 .../listnodes/SyncListNodesString.java        |   44 +
 .../AsyncListRuntimeVersions.java             |   57 +
 .../AsyncListRuntimeVersionsPaged.java        |   65 +
 .../SyncListRuntimeVersions.java              |   53 +
 ...ListRuntimeVersionsRuntimeversionname.java |   45 +
 .../SyncListRuntimeVersionsString.java        |   45 +
 .../tpuclient/startnode/AsyncStartNode.java   |   45 +
 .../startnode/AsyncStartNodeLRO.java          |   47 +
 .../tpuclient/startnode/SyncStartNode.java    |   42 +
 .../tpuclient/stopnode/AsyncStopNode.java     |   45 +
 .../tpuclient/stopnode/AsyncStopNodeLRO.java  |   47 +
 .../tpuclient/stopnode/SyncStopNode.java      |   42 +
 .../tpuclient/updatenode/AsyncUpdateNode.java |   51 +
 .../updatenode/AsyncUpdateNodeLRO.java        |   52 +
 .../tpuclient/updatenode/SyncUpdateNode.java  |   47 +
 .../SyncUpdateNodeNodeFieldmask.java          |   43 +
 .../tpusettings/getnode/SyncGetNode.java      |   45 +
 251 files changed, 85916 insertions(+)
 create mode 100644 owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/TpuClient.java
 create mode 100644 owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/TpuSettings.java
 create mode 100644 owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/gapic_metadata.json
 create mode 100644 owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/package-info.java
 create mode 100644 owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/GrpcTpuCallableFactory.java
 create mode 100644 owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/GrpcTpuStub.java
 create mode 100644 owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/TpuStub.java
 create mode 100644 owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/TpuStubSettings.java
 create mode 100644 owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v1/MockTpu.java
 create mode 100644 owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v1/MockTpuImpl.java
 create mode 100644 owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v1/TpuClientTest.java
 create mode 100644 owl-bot-staging/java-tpu/v1/grpc-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TpuGrpc.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorType.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorTypeName.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorTypeOrBuilder.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CloudTpuProto.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequest.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequestOrBuilder.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequest.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequestOrBuilder.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequest.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequestOrBuilder.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequest.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequestOrBuilder.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequest.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequestOrBuilder.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequest.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequestOrBuilder.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponse.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponseOrBuilder.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequest.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequestOrBuilder.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponse.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponseOrBuilder.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequest.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequestOrBuilder.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponse.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponseOrBuilder.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/LocationName.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpoint.java
 create mode 100644 owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpointOrBuilder.java
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 create mode 100644 owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpusettings/getnode/SyncGetNode.java

diff --git a/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/TpuClient.java b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/TpuClient.java
new file mode 100644
index 000000000000..6f541fed9c6f
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/TpuClient.java
@@ -0,0 +1,1838 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1;
+
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutures;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.api.gax.paging.AbstractFixedSizeCollection;
+import com.google.api.gax.paging.AbstractPage;
+import com.google.api.gax.paging.AbstractPagedListResponse;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.tpu.v1.stub.TpuStub;
+import com.google.cloud.tpu.v1.stub.TpuStubSettings;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.longrunning.Operation;
+import com.google.longrunning.OperationsClient;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Service Description: Manages TPU nodes and other resources
+ *
+ * <p>TPU API v1
+ *
+ * <p>This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * <pre>{@code
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+ * try (TpuClient tpuClient = TpuClient.create()) {
+ *   NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+ *   Node response = tpuClient.getNode(name);
+ * }
+ * }</pre>
+ *
+ * <p>Note: close() needs to be called on the TpuClient object to clean up resources such as
+ * threads. In the example above, try-with-resources is used, which automatically calls close().
+ *
+ * <p>The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * <ol>
+ *   <li>A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   <li>A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * </ol>
+ *
+ * <p>See the individual methods for example code.
+ *
+ * <p>Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * <p>This class can be customized by passing in a custom instance of TpuSettings to create(). For
+ * example:
+ *
+ * <p>To customize credentials:
+ *
+ * <pre>{@code
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+ * TpuSettings tpuSettings =
+ *     TpuSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * TpuClient tpuClient = TpuClient.create(tpuSettings);
+ * }</pre>
+ *
+ * <p>To customize the endpoint:
+ *
+ * <pre>{@code
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+ * TpuSettings tpuSettings = TpuSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * TpuClient tpuClient = TpuClient.create(tpuSettings);
+ * }</pre>
+ *
+ * <p>Please refer to the GitHub repository's samples for more quickstart code snippets.
+ */
+@Generated("by gapic-generator-java")
+public class TpuClient implements BackgroundResource {
+  private final TpuSettings settings;
+  private final TpuStub stub;
+  private final OperationsClient operationsClient;
+
+  /** Constructs an instance of TpuClient with default settings. */
+  public static final TpuClient create() throws IOException {
+    return create(TpuSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of TpuClient, using the given settings. The channels are created based
+   * on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final TpuClient create(TpuSettings settings) throws IOException {
+    return new TpuClient(settings);
+  }
+
+  /**
+   * Constructs an instance of TpuClient, using the given stub for making calls. This is for
+   * advanced usage - prefer using create(TpuSettings).
+   */
+  public static final TpuClient create(TpuStub stub) {
+    return new TpuClient(stub);
+  }
+
+  /**
+   * Constructs an instance of TpuClient, using the given settings. This is protected so that it is
+   * easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected TpuClient(TpuSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((TpuStubSettings) settings.getStubSettings()).createStub();
+    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+  }
+
+  protected TpuClient(TpuStub stub) {
+    this.settings = null;
+    this.stub = stub;
+    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+  }
+
+  public final TpuSettings getSettings() {
+    return settings;
+  }
+
+  public TpuStub getStub() {
+    return stub;
+  }
+
+  /**
+   * Returns the OperationsClient that can be used to query the status of a long-running operation
+   * returned by another API method call.
+   */
+  public final OperationsClient getOperationsClient() {
+    return operationsClient;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists nodes.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+   *   for (Node element : tpuClient.listNodes(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListNodesPagedResponse listNodes(LocationName parent) {
+    ListNodesRequest request =
+        ListNodesRequest.newBuilder().setParent(parent == null ? null : parent.toString()).build();
+    return listNodes(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists nodes.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
+   *   for (Node element : tpuClient.listNodes(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListNodesPagedResponse listNodes(String parent) {
+    ListNodesRequest request = ListNodesRequest.newBuilder().setParent(parent).build();
+    return listNodes(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists nodes.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListNodesRequest request =
+   *       ListNodesRequest.newBuilder()
+   *           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   for (Node element : tpuClient.listNodes(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListNodesPagedResponse listNodes(ListNodesRequest request) {
+    return listNodesPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists nodes.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListNodesRequest request =
+   *       ListNodesRequest.newBuilder()
+   *           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   ApiFuture<Node> future = tpuClient.listNodesPagedCallable().futureCall(request);
+   *   // Do something.
+   *   for (Node element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<ListNodesRequest, ListNodesPagedResponse> listNodesPagedCallable() {
+    return stub.listNodesPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists nodes.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListNodesRequest request =
+   *       ListNodesRequest.newBuilder()
+   *           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   while (true) {
+   *     ListNodesResponse response = tpuClient.listNodesCallable().call(request);
+   *     for (Node element : response.getNodesList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<ListNodesRequest, ListNodesResponse> listNodesCallable() {
+    return stub.listNodesCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets the details of a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+   *   Node response = tpuClient.getNode(name);
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Node getNode(NodeName name) {
+    GetNodeRequest request =
+        GetNodeRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return getNode(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets the details of a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString();
+   *   Node response = tpuClient.getNode(name);
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Node getNode(String name) {
+    GetNodeRequest request = GetNodeRequest.newBuilder().setName(name).build();
+    return getNode(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets the details of a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetNodeRequest request =
+   *       GetNodeRequest.newBuilder()
+   *           .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .build();
+   *   Node response = tpuClient.getNode(request);
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Node getNode(GetNodeRequest request) {
+    return getNodeCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets the details of a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetNodeRequest request =
+   *       GetNodeRequest.newBuilder()
+   *           .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .build();
+   *   ApiFuture<Node> future = tpuClient.getNodeCallable().futureCall(request);
+   *   // Do something.
+   *   Node response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<GetNodeRequest, Node> getNodeCallable() {
+    return stub.getNodeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+   *   Node node = Node.newBuilder().build();
+   *   String nodeId = "nodeId-1040171331";
+   *   Node response = tpuClient.createNodeAsync(parent, node, nodeId).get();
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @param node Required. The node.
+   * @param nodeId The unqualified resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> createNodeAsync(
+      LocationName parent, Node node, String nodeId) {
+    CreateNodeRequest request =
+        CreateNodeRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .setNode(node)
+            .setNodeId(nodeId)
+            .build();
+    return createNodeAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
+   *   Node node = Node.newBuilder().build();
+   *   String nodeId = "nodeId-1040171331";
+   *   Node response = tpuClient.createNodeAsync(parent, node, nodeId).get();
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @param node Required. The node.
+   * @param nodeId The unqualified resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> createNodeAsync(
+      String parent, Node node, String nodeId) {
+    CreateNodeRequest request =
+        CreateNodeRequest.newBuilder().setParent(parent).setNode(node).setNodeId(nodeId).build();
+    return createNodeAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   CreateNodeRequest request =
+   *       CreateNodeRequest.newBuilder()
+   *           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+   *           .setNodeId("nodeId-1040171331")
+   *           .setNode(Node.newBuilder().build())
+   *           .build();
+   *   Node response = tpuClient.createNodeAsync(request).get();
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> createNodeAsync(CreateNodeRequest request) {
+    return createNodeOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   CreateNodeRequest request =
+   *       CreateNodeRequest.newBuilder()
+   *           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+   *           .setNodeId("nodeId-1040171331")
+   *           .setNode(Node.newBuilder().build())
+   *           .build();
+   *   OperationFuture<Node, OperationMetadata> future =
+   *       tpuClient.createNodeOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Node response = future.get();
+   * }
+   * }</pre>
+   */
+  public final OperationCallable<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationCallable() {
+    return stub.createNodeOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   CreateNodeRequest request =
+   *       CreateNodeRequest.newBuilder()
+   *           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+   *           .setNodeId("nodeId-1040171331")
+   *           .setNode(Node.newBuilder().build())
+   *           .build();
+   *   ApiFuture<Operation> future = tpuClient.createNodeCallable().futureCall(request);
+   *   // Do something.
+   *   Operation response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<CreateNodeRequest, Operation> createNodeCallable() {
+    return stub.createNodeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Deletes a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+   *   Node response = tpuClient.deleteNodeAsync(name).get();
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> deleteNodeAsync(NodeName name) {
+    DeleteNodeRequest request =
+        DeleteNodeRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return deleteNodeAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Deletes a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString();
+   *   Node response = tpuClient.deleteNodeAsync(name).get();
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> deleteNodeAsync(String name) {
+    DeleteNodeRequest request = DeleteNodeRequest.newBuilder().setName(name).build();
+    return deleteNodeAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Deletes a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   DeleteNodeRequest request =
+   *       DeleteNodeRequest.newBuilder()
+   *           .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .build();
+   *   Node response = tpuClient.deleteNodeAsync(request).get();
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> deleteNodeAsync(DeleteNodeRequest request) {
+    return deleteNodeOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Deletes a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   DeleteNodeRequest request =
+   *       DeleteNodeRequest.newBuilder()
+   *           .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .build();
+   *   OperationFuture<Node, OperationMetadata> future =
+   *       tpuClient.deleteNodeOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Node response = future.get();
+   * }
+   * }</pre>
+   */
+  public final OperationCallable<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationCallable() {
+    return stub.deleteNodeOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Deletes a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   DeleteNodeRequest request =
+   *       DeleteNodeRequest.newBuilder()
+   *           .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .build();
+   *   ApiFuture<Operation> future = tpuClient.deleteNodeCallable().futureCall(request);
+   *   // Do something.
+   *   Operation response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<DeleteNodeRequest, Operation> deleteNodeCallable() {
+    return stub.deleteNodeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Reimages a node's OS.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ReimageNodeRequest request =
+   *       ReimageNodeRequest.newBuilder()
+   *           .setName("name3373707")
+   *           .setTensorflowVersion("tensorflowVersion-470125103")
+   *           .build();
+   *   Node response = tpuClient.reimageNodeAsync(request).get();
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> reimageNodeAsync(
+      ReimageNodeRequest request) {
+    return reimageNodeOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Reimages a node's OS.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ReimageNodeRequest request =
+   *       ReimageNodeRequest.newBuilder()
+   *           .setName("name3373707")
+   *           .setTensorflowVersion("tensorflowVersion-470125103")
+   *           .build();
+   *   OperationFuture<Node, OperationMetadata> future =
+   *       tpuClient.reimageNodeOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Node response = future.get();
+   * }
+   * }</pre>
+   */
+  public final OperationCallable<ReimageNodeRequest, Node, OperationMetadata>
+      reimageNodeOperationCallable() {
+    return stub.reimageNodeOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Reimages a node's OS.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ReimageNodeRequest request =
+   *       ReimageNodeRequest.newBuilder()
+   *           .setName("name3373707")
+   *           .setTensorflowVersion("tensorflowVersion-470125103")
+   *           .build();
+   *   ApiFuture<Operation> future = tpuClient.reimageNodeCallable().futureCall(request);
+   *   // Do something.
+   *   Operation response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<ReimageNodeRequest, Operation> reimageNodeCallable() {
+    return stub.reimageNodeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Stops a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+   *   Node response = tpuClient.stopNodeAsync(request).get();
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> stopNodeAsync(StopNodeRequest request) {
+    return stopNodeOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Stops a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+   *   OperationFuture<Node, OperationMetadata> future =
+   *       tpuClient.stopNodeOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Node response = future.get();
+   * }
+   * }</pre>
+   */
+  public final OperationCallable<StopNodeRequest, Node, OperationMetadata>
+      stopNodeOperationCallable() {
+    return stub.stopNodeOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Stops a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+   *   ApiFuture<Operation> future = tpuClient.stopNodeCallable().futureCall(request);
+   *   // Do something.
+   *   Operation response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<StopNodeRequest, Operation> stopNodeCallable() {
+    return stub.stopNodeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Starts a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+   *   Node response = tpuClient.startNodeAsync(request).get();
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> startNodeAsync(StartNodeRequest request) {
+    return startNodeOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Starts a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+   *   OperationFuture<Node, OperationMetadata> future =
+   *       tpuClient.startNodeOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Node response = future.get();
+   * }
+   * }</pre>
+   */
+  public final OperationCallable<StartNodeRequest, Node, OperationMetadata>
+      startNodeOperationCallable() {
+    return stub.startNodeOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Starts a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+   *   ApiFuture<Operation> future = tpuClient.startNodeCallable().futureCall(request);
+   *   // Do something.
+   *   Operation response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<StartNodeRequest, Operation> startNodeCallable() {
+    return stub.startNodeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * List TensorFlow versions supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   TensorFlowVersionName parent =
+   *       TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]");
+   *   for (TensorFlowVersion element : tpuClient.listTensorFlowVersions(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListTensorFlowVersionsPagedResponse listTensorFlowVersions(
+      TensorFlowVersionName parent) {
+    ListTensorFlowVersionsRequest request =
+        ListTensorFlowVersionsRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .build();
+    return listTensorFlowVersions(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * List TensorFlow versions supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String parent =
+   *       TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]").toString();
+   *   for (TensorFlowVersion element : tpuClient.listTensorFlowVersions(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListTensorFlowVersionsPagedResponse listTensorFlowVersions(String parent) {
+    ListTensorFlowVersionsRequest request =
+        ListTensorFlowVersionsRequest.newBuilder().setParent(parent).build();
+    return listTensorFlowVersions(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * List TensorFlow versions supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListTensorFlowVersionsRequest request =
+   *       ListTensorFlowVersionsRequest.newBuilder()
+   *           .setParent(
+   *               TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]")
+   *                   .toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .setFilter("filter-1274492040")
+   *           .setOrderBy("orderBy-1207110587")
+   *           .build();
+   *   for (TensorFlowVersion element : tpuClient.listTensorFlowVersions(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListTensorFlowVersionsPagedResponse listTensorFlowVersions(
+      ListTensorFlowVersionsRequest request) {
+    return listTensorFlowVersionsPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * List TensorFlow versions supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListTensorFlowVersionsRequest request =
+   *       ListTensorFlowVersionsRequest.newBuilder()
+   *           .setParent(
+   *               TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]")
+   *                   .toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .setFilter("filter-1274492040")
+   *           .setOrderBy("orderBy-1207110587")
+   *           .build();
+   *   ApiFuture<TensorFlowVersion> future =
+   *       tpuClient.listTensorFlowVersionsPagedCallable().futureCall(request);
+   *   // Do something.
+   *   for (TensorFlowVersion element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<ListTensorFlowVersionsRequest, ListTensorFlowVersionsPagedResponse>
+      listTensorFlowVersionsPagedCallable() {
+    return stub.listTensorFlowVersionsPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * List TensorFlow versions supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListTensorFlowVersionsRequest request =
+   *       ListTensorFlowVersionsRequest.newBuilder()
+   *           .setParent(
+   *               TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]")
+   *                   .toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .setFilter("filter-1274492040")
+   *           .setOrderBy("orderBy-1207110587")
+   *           .build();
+   *   while (true) {
+   *     ListTensorFlowVersionsResponse response =
+   *         tpuClient.listTensorFlowVersionsCallable().call(request);
+   *     for (TensorFlowVersion element : response.getTensorflowVersionsList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse>
+      listTensorFlowVersionsCallable() {
+    return stub.listTensorFlowVersionsCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets TensorFlow Version.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   TensorFlowVersionName name =
+   *       TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]");
+   *   TensorFlowVersion response = tpuClient.getTensorFlowVersion(name);
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final TensorFlowVersion getTensorFlowVersion(TensorFlowVersionName name) {
+    GetTensorFlowVersionRequest request =
+        GetTensorFlowVersionRequest.newBuilder()
+            .setName(name == null ? null : name.toString())
+            .build();
+    return getTensorFlowVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets TensorFlow Version.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String name =
+   *       TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]").toString();
+   *   TensorFlowVersion response = tpuClient.getTensorFlowVersion(name);
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final TensorFlowVersion getTensorFlowVersion(String name) {
+    GetTensorFlowVersionRequest request =
+        GetTensorFlowVersionRequest.newBuilder().setName(name).build();
+    return getTensorFlowVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets TensorFlow Version.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetTensorFlowVersionRequest request =
+   *       GetTensorFlowVersionRequest.newBuilder()
+   *           .setName(
+   *               TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]")
+   *                   .toString())
+   *           .build();
+   *   TensorFlowVersion response = tpuClient.getTensorFlowVersion(request);
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final TensorFlowVersion getTensorFlowVersion(GetTensorFlowVersionRequest request) {
+    return getTensorFlowVersionCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets TensorFlow Version.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetTensorFlowVersionRequest request =
+   *       GetTensorFlowVersionRequest.newBuilder()
+   *           .setName(
+   *               TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]")
+   *                   .toString())
+   *           .build();
+   *   ApiFuture<TensorFlowVersion> future =
+   *       tpuClient.getTensorFlowVersionCallable().futureCall(request);
+   *   // Do something.
+   *   TensorFlowVersion response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<GetTensorFlowVersionRequest, TensorFlowVersion>
+      getTensorFlowVersionCallable() {
+    return stub.getTensorFlowVersionCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists accelerator types supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   AcceleratorTypeName parent =
+   *       AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+   *   for (AcceleratorType element : tpuClient.listAcceleratorTypes(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListAcceleratorTypesPagedResponse listAcceleratorTypes(AcceleratorTypeName parent) {
+    ListAcceleratorTypesRequest request =
+        ListAcceleratorTypesRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .build();
+    return listAcceleratorTypes(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists accelerator types supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String parent =
+   *       AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]").toString();
+   *   for (AcceleratorType element : tpuClient.listAcceleratorTypes(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListAcceleratorTypesPagedResponse listAcceleratorTypes(String parent) {
+    ListAcceleratorTypesRequest request =
+        ListAcceleratorTypesRequest.newBuilder().setParent(parent).build();
+    return listAcceleratorTypes(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists accelerator types supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListAcceleratorTypesRequest request =
+   *       ListAcceleratorTypesRequest.newBuilder()
+   *           .setParent(
+   *               AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+   *                   .toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .setFilter("filter-1274492040")
+   *           .setOrderBy("orderBy-1207110587")
+   *           .build();
+   *   for (AcceleratorType element : tpuClient.listAcceleratorTypes(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListAcceleratorTypesPagedResponse listAcceleratorTypes(
+      ListAcceleratorTypesRequest request) {
+    return listAcceleratorTypesPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists accelerator types supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListAcceleratorTypesRequest request =
+   *       ListAcceleratorTypesRequest.newBuilder()
+   *           .setParent(
+   *               AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+   *                   .toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .setFilter("filter-1274492040")
+   *           .setOrderBy("orderBy-1207110587")
+   *           .build();
+   *   ApiFuture<AcceleratorType> future =
+   *       tpuClient.listAcceleratorTypesPagedCallable().futureCall(request);
+   *   // Do something.
+   *   for (AcceleratorType element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesPagedCallable() {
+    return stub.listAcceleratorTypesPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists accelerator types supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListAcceleratorTypesRequest request =
+   *       ListAcceleratorTypesRequest.newBuilder()
+   *           .setParent(
+   *               AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+   *                   .toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .setFilter("filter-1274492040")
+   *           .setOrderBy("orderBy-1207110587")
+   *           .build();
+   *   while (true) {
+   *     ListAcceleratorTypesResponse response =
+   *         tpuClient.listAcceleratorTypesCallable().call(request);
+   *     for (AcceleratorType element : response.getAcceleratorTypesList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>
+      listAcceleratorTypesCallable() {
+    return stub.listAcceleratorTypesCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets AcceleratorType.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   AcceleratorTypeName name =
+   *       AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+   *   AcceleratorType response = tpuClient.getAcceleratorType(name);
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final AcceleratorType getAcceleratorType(AcceleratorTypeName name) {
+    GetAcceleratorTypeRequest request =
+        GetAcceleratorTypeRequest.newBuilder()
+            .setName(name == null ? null : name.toString())
+            .build();
+    return getAcceleratorType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets AcceleratorType.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String name =
+   *       AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]").toString();
+   *   AcceleratorType response = tpuClient.getAcceleratorType(name);
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final AcceleratorType getAcceleratorType(String name) {
+    GetAcceleratorTypeRequest request =
+        GetAcceleratorTypeRequest.newBuilder().setName(name).build();
+    return getAcceleratorType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets AcceleratorType.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetAcceleratorTypeRequest request =
+   *       GetAcceleratorTypeRequest.newBuilder()
+   *           .setName(
+   *               AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+   *                   .toString())
+   *           .build();
+   *   AcceleratorType response = tpuClient.getAcceleratorType(request);
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final AcceleratorType getAcceleratorType(GetAcceleratorTypeRequest request) {
+    return getAcceleratorTypeCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets AcceleratorType.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetAcceleratorTypeRequest request =
+   *       GetAcceleratorTypeRequest.newBuilder()
+   *           .setName(
+   *               AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+   *                   .toString())
+   *           .build();
+   *   ApiFuture<AcceleratorType> future =
+   *       tpuClient.getAcceleratorTypeCallable().futureCall(request);
+   *   // Do something.
+   *   AcceleratorType response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<GetAcceleratorTypeRequest, AcceleratorType>
+      getAcceleratorTypeCallable() {
+    return stub.getAcceleratorTypeCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+
+  public static class ListNodesPagedResponse
+      extends AbstractPagedListResponse<
+          ListNodesRequest, ListNodesResponse, Node, ListNodesPage, ListNodesFixedSizeCollection> {
+
+    public static ApiFuture<ListNodesPagedResponse> createAsync(
+        PageContext<ListNodesRequest, ListNodesResponse, Node> context,
+        ApiFuture<ListNodesResponse> futureResponse) {
+      ApiFuture<ListNodesPage> futurePage =
+          ListNodesPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage, input -> new ListNodesPagedResponse(input), MoreExecutors.directExecutor());
+    }
+
+    private ListNodesPagedResponse(ListNodesPage page) {
+      super(page, ListNodesFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListNodesPage
+      extends AbstractPage<ListNodesRequest, ListNodesResponse, Node, ListNodesPage> {
+
+    private ListNodesPage(
+        PageContext<ListNodesRequest, ListNodesResponse, Node> context,
+        ListNodesResponse response) {
+      super(context, response);
+    }
+
+    private static ListNodesPage createEmptyPage() {
+      return new ListNodesPage(null, null);
+    }
+
+    @Override
+    protected ListNodesPage createPage(
+        PageContext<ListNodesRequest, ListNodesResponse, Node> context,
+        ListNodesResponse response) {
+      return new ListNodesPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListNodesPage> createPageAsync(
+        PageContext<ListNodesRequest, ListNodesResponse, Node> context,
+        ApiFuture<ListNodesResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListNodesFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListNodesRequest, ListNodesResponse, Node, ListNodesPage, ListNodesFixedSizeCollection> {
+
+    private ListNodesFixedSizeCollection(List<ListNodesPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListNodesFixedSizeCollection createEmptyCollection() {
+      return new ListNodesFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListNodesFixedSizeCollection createCollection(
+        List<ListNodesPage> pages, int collectionSize) {
+      return new ListNodesFixedSizeCollection(pages, collectionSize);
+    }
+  }
+
+  public static class ListTensorFlowVersionsPagedResponse
+      extends AbstractPagedListResponse<
+          ListTensorFlowVersionsRequest,
+          ListTensorFlowVersionsResponse,
+          TensorFlowVersion,
+          ListTensorFlowVersionsPage,
+          ListTensorFlowVersionsFixedSizeCollection> {
+
+    public static ApiFuture<ListTensorFlowVersionsPagedResponse> createAsync(
+        PageContext<
+                ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse, TensorFlowVersion>
+            context,
+        ApiFuture<ListTensorFlowVersionsResponse> futureResponse) {
+      ApiFuture<ListTensorFlowVersionsPage> futurePage =
+          ListTensorFlowVersionsPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          input -> new ListTensorFlowVersionsPagedResponse(input),
+          MoreExecutors.directExecutor());
+    }
+
+    private ListTensorFlowVersionsPagedResponse(ListTensorFlowVersionsPage page) {
+      super(page, ListTensorFlowVersionsFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListTensorFlowVersionsPage
+      extends AbstractPage<
+          ListTensorFlowVersionsRequest,
+          ListTensorFlowVersionsResponse,
+          TensorFlowVersion,
+          ListTensorFlowVersionsPage> {
+
+    private ListTensorFlowVersionsPage(
+        PageContext<
+                ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse, TensorFlowVersion>
+            context,
+        ListTensorFlowVersionsResponse response) {
+      super(context, response);
+    }
+
+    private static ListTensorFlowVersionsPage createEmptyPage() {
+      return new ListTensorFlowVersionsPage(null, null);
+    }
+
+    @Override
+    protected ListTensorFlowVersionsPage createPage(
+        PageContext<
+                ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse, TensorFlowVersion>
+            context,
+        ListTensorFlowVersionsResponse response) {
+      return new ListTensorFlowVersionsPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListTensorFlowVersionsPage> createPageAsync(
+        PageContext<
+                ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse, TensorFlowVersion>
+            context,
+        ApiFuture<ListTensorFlowVersionsResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListTensorFlowVersionsFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListTensorFlowVersionsRequest,
+          ListTensorFlowVersionsResponse,
+          TensorFlowVersion,
+          ListTensorFlowVersionsPage,
+          ListTensorFlowVersionsFixedSizeCollection> {
+
+    private ListTensorFlowVersionsFixedSizeCollection(
+        List<ListTensorFlowVersionsPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListTensorFlowVersionsFixedSizeCollection createEmptyCollection() {
+      return new ListTensorFlowVersionsFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListTensorFlowVersionsFixedSizeCollection createCollection(
+        List<ListTensorFlowVersionsPage> pages, int collectionSize) {
+      return new ListTensorFlowVersionsFixedSizeCollection(pages, collectionSize);
+    }
+  }
+
+  public static class ListAcceleratorTypesPagedResponse
+      extends AbstractPagedListResponse<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          AcceleratorType,
+          ListAcceleratorTypesPage,
+          ListAcceleratorTypesFixedSizeCollection> {
+
+    public static ApiFuture<ListAcceleratorTypesPagedResponse> createAsync(
+        PageContext<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>
+            context,
+        ApiFuture<ListAcceleratorTypesResponse> futureResponse) {
+      ApiFuture<ListAcceleratorTypesPage> futurePage =
+          ListAcceleratorTypesPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          input -> new ListAcceleratorTypesPagedResponse(input),
+          MoreExecutors.directExecutor());
+    }
+
+    private ListAcceleratorTypesPagedResponse(ListAcceleratorTypesPage page) {
+      super(page, ListAcceleratorTypesFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListAcceleratorTypesPage
+      extends AbstractPage<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          AcceleratorType,
+          ListAcceleratorTypesPage> {
+
+    private ListAcceleratorTypesPage(
+        PageContext<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>
+            context,
+        ListAcceleratorTypesResponse response) {
+      super(context, response);
+    }
+
+    private static ListAcceleratorTypesPage createEmptyPage() {
+      return new ListAcceleratorTypesPage(null, null);
+    }
+
+    @Override
+    protected ListAcceleratorTypesPage createPage(
+        PageContext<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>
+            context,
+        ListAcceleratorTypesResponse response) {
+      return new ListAcceleratorTypesPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListAcceleratorTypesPage> createPageAsync(
+        PageContext<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>
+            context,
+        ApiFuture<ListAcceleratorTypesResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListAcceleratorTypesFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          AcceleratorType,
+          ListAcceleratorTypesPage,
+          ListAcceleratorTypesFixedSizeCollection> {
+
+    private ListAcceleratorTypesFixedSizeCollection(
+        List<ListAcceleratorTypesPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListAcceleratorTypesFixedSizeCollection createEmptyCollection() {
+      return new ListAcceleratorTypesFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListAcceleratorTypesFixedSizeCollection createCollection(
+        List<ListAcceleratorTypesPage> pages, int collectionSize) {
+      return new ListAcceleratorTypesFixedSizeCollection(pages, collectionSize);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/TpuSettings.java b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/TpuSettings.java
new file mode 100644
index 000000000000..d427f4ff75ba
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/TpuSettings.java
@@ -0,0 +1,371 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1;
+
+import static com.google.cloud.tpu.v1.TpuClient.ListAcceleratorTypesPagedResponse;
+import static com.google.cloud.tpu.v1.TpuClient.ListNodesPagedResponse;
+import static com.google.cloud.tpu.v1.TpuClient.ListTensorFlowVersionsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.tpu.v1.stub.TpuStubSettings;
+import com.google.longrunning.Operation;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Settings class to configure an instance of {@link TpuClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (tpu.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getNode to 30 seconds:
+ *
+ * <pre>{@code
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+ * TpuSettings.Builder tpuSettingsBuilder = TpuSettings.newBuilder();
+ * tpuSettingsBuilder
+ *     .getNodeSettings()
+ *     .setRetrySettings(
+ *         tpuSettingsBuilder.getNodeSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * TpuSettings tpuSettings = tpuSettingsBuilder.build();
+ * }</pre>
+ */
+@Generated("by gapic-generator-java")
+public class TpuSettings extends ClientSettings<TpuSettings> {
+
+  /** Returns the object with the settings used for calls to listNodes. */
+  public PagedCallSettings<ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+      listNodesSettings() {
+    return ((TpuStubSettings) getStubSettings()).listNodesSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getNode. */
+  public UnaryCallSettings<GetNodeRequest, Node> getNodeSettings() {
+    return ((TpuStubSettings) getStubSettings()).getNodeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createNode. */
+  public UnaryCallSettings<CreateNodeRequest, Operation> createNodeSettings() {
+    return ((TpuStubSettings) getStubSettings()).createNodeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createNode. */
+  public OperationCallSettings<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationSettings() {
+    return ((TpuStubSettings) getStubSettings()).createNodeOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteNode. */
+  public UnaryCallSettings<DeleteNodeRequest, Operation> deleteNodeSettings() {
+    return ((TpuStubSettings) getStubSettings()).deleteNodeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteNode. */
+  public OperationCallSettings<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationSettings() {
+    return ((TpuStubSettings) getStubSettings()).deleteNodeOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to reimageNode. */
+  public UnaryCallSettings<ReimageNodeRequest, Operation> reimageNodeSettings() {
+    return ((TpuStubSettings) getStubSettings()).reimageNodeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to reimageNode. */
+  public OperationCallSettings<ReimageNodeRequest, Node, OperationMetadata>
+      reimageNodeOperationSettings() {
+    return ((TpuStubSettings) getStubSettings()).reimageNodeOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to stopNode. */
+  public UnaryCallSettings<StopNodeRequest, Operation> stopNodeSettings() {
+    return ((TpuStubSettings) getStubSettings()).stopNodeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to stopNode. */
+  public OperationCallSettings<StopNodeRequest, Node, OperationMetadata>
+      stopNodeOperationSettings() {
+    return ((TpuStubSettings) getStubSettings()).stopNodeOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to startNode. */
+  public UnaryCallSettings<StartNodeRequest, Operation> startNodeSettings() {
+    return ((TpuStubSettings) getStubSettings()).startNodeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to startNode. */
+  public OperationCallSettings<StartNodeRequest, Node, OperationMetadata>
+      startNodeOperationSettings() {
+    return ((TpuStubSettings) getStubSettings()).startNodeOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to listTensorFlowVersions. */
+  public PagedCallSettings<
+          ListTensorFlowVersionsRequest,
+          ListTensorFlowVersionsResponse,
+          ListTensorFlowVersionsPagedResponse>
+      listTensorFlowVersionsSettings() {
+    return ((TpuStubSettings) getStubSettings()).listTensorFlowVersionsSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getTensorFlowVersion. */
+  public UnaryCallSettings<GetTensorFlowVersionRequest, TensorFlowVersion>
+      getTensorFlowVersionSettings() {
+    return ((TpuStubSettings) getStubSettings()).getTensorFlowVersionSettings();
+  }
+
+  /** Returns the object with the settings used for calls to listAcceleratorTypes. */
+  public PagedCallSettings<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesSettings() {
+    return ((TpuStubSettings) getStubSettings()).listAcceleratorTypesSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getAcceleratorType. */
+  public UnaryCallSettings<GetAcceleratorTypeRequest, AcceleratorType>
+      getAcceleratorTypeSettings() {
+    return ((TpuStubSettings) getStubSettings()).getAcceleratorTypeSettings();
+  }
+
+  public static final TpuSettings create(TpuStubSettings stub) throws IOException {
+    return new TpuSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return TpuStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return TpuStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return TpuStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return TpuStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return TpuStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return TpuStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return TpuStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected TpuSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for TpuSettings. */
+  public static class Builder extends ClientSettings.Builder<TpuSettings, Builder> {
+
+    protected Builder() throws IOException {
+      this(((ClientContext) null));
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(TpuStubSettings.newBuilder(clientContext));
+    }
+
+    protected Builder(TpuSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(TpuStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    private static Builder createDefault() {
+      return new Builder(TpuStubSettings.newBuilder());
+    }
+
+    public TpuStubSettings.Builder getStubSettingsBuilder() {
+      return ((TpuStubSettings.Builder) getStubSettings());
+    }
+
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to listNodes. */
+    public PagedCallSettings.Builder<ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+        listNodesSettings() {
+      return getStubSettingsBuilder().listNodesSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getNode. */
+    public UnaryCallSettings.Builder<GetNodeRequest, Node> getNodeSettings() {
+      return getStubSettingsBuilder().getNodeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createNode. */
+    public UnaryCallSettings.Builder<CreateNodeRequest, Operation> createNodeSettings() {
+      return getStubSettingsBuilder().createNodeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createNode. */
+    public OperationCallSettings.Builder<CreateNodeRequest, Node, OperationMetadata>
+        createNodeOperationSettings() {
+      return getStubSettingsBuilder().createNodeOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteNode. */
+    public UnaryCallSettings.Builder<DeleteNodeRequest, Operation> deleteNodeSettings() {
+      return getStubSettingsBuilder().deleteNodeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteNode. */
+    public OperationCallSettings.Builder<DeleteNodeRequest, Node, OperationMetadata>
+        deleteNodeOperationSettings() {
+      return getStubSettingsBuilder().deleteNodeOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to reimageNode. */
+    public UnaryCallSettings.Builder<ReimageNodeRequest, Operation> reimageNodeSettings() {
+      return getStubSettingsBuilder().reimageNodeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to reimageNode. */
+    public OperationCallSettings.Builder<ReimageNodeRequest, Node, OperationMetadata>
+        reimageNodeOperationSettings() {
+      return getStubSettingsBuilder().reimageNodeOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to stopNode. */
+    public UnaryCallSettings.Builder<StopNodeRequest, Operation> stopNodeSettings() {
+      return getStubSettingsBuilder().stopNodeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to stopNode. */
+    public OperationCallSettings.Builder<StopNodeRequest, Node, OperationMetadata>
+        stopNodeOperationSettings() {
+      return getStubSettingsBuilder().stopNodeOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to startNode. */
+    public UnaryCallSettings.Builder<StartNodeRequest, Operation> startNodeSettings() {
+      return getStubSettingsBuilder().startNodeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to startNode. */
+    public OperationCallSettings.Builder<StartNodeRequest, Node, OperationMetadata>
+        startNodeOperationSettings() {
+      return getStubSettingsBuilder().startNodeOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to listTensorFlowVersions. */
+    public PagedCallSettings.Builder<
+            ListTensorFlowVersionsRequest,
+            ListTensorFlowVersionsResponse,
+            ListTensorFlowVersionsPagedResponse>
+        listTensorFlowVersionsSettings() {
+      return getStubSettingsBuilder().listTensorFlowVersionsSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getTensorFlowVersion. */
+    public UnaryCallSettings.Builder<GetTensorFlowVersionRequest, TensorFlowVersion>
+        getTensorFlowVersionSettings() {
+      return getStubSettingsBuilder().getTensorFlowVersionSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to listAcceleratorTypes. */
+    public PagedCallSettings.Builder<
+            ListAcceleratorTypesRequest,
+            ListAcceleratorTypesResponse,
+            ListAcceleratorTypesPagedResponse>
+        listAcceleratorTypesSettings() {
+      return getStubSettingsBuilder().listAcceleratorTypesSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getAcceleratorType. */
+    public UnaryCallSettings.Builder<GetAcceleratorTypeRequest, AcceleratorType>
+        getAcceleratorTypeSettings() {
+      return getStubSettingsBuilder().getAcceleratorTypeSettings();
+    }
+
+    @Override
+    public TpuSettings build() throws IOException {
+      return new TpuSettings(this);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/gapic_metadata.json b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/gapic_metadata.json
new file mode 100644
index 000000000000..6226bd981dce
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/gapic_metadata.json
@@ -0,0 +1,51 @@
+{
+  "schema": "1.0",
+  "comment": "This file maps proto services/RPCs to the corresponding library clients/methods",
+  "language": "java",
+  "protoPackage": "google.cloud.tpu.v1",
+  "libraryPackage": "com.google.cloud.tpu.v1",
+  "services": {
+    "Tpu": {
+      "clients": {
+        "grpc": {
+          "libraryClient": "TpuClient",
+          "rpcs": {
+            "CreateNode": {
+              "methods": ["createNodeAsync", "createNodeAsync", "createNodeAsync", "createNodeOperationCallable", "createNodeCallable"]
+            },
+            "DeleteNode": {
+              "methods": ["deleteNodeAsync", "deleteNodeAsync", "deleteNodeAsync", "deleteNodeOperationCallable", "deleteNodeCallable"]
+            },
+            "GetAcceleratorType": {
+              "methods": ["getAcceleratorType", "getAcceleratorType", "getAcceleratorType", "getAcceleratorTypeCallable"]
+            },
+            "GetNode": {
+              "methods": ["getNode", "getNode", "getNode", "getNodeCallable"]
+            },
+            "GetTensorFlowVersion": {
+              "methods": ["getTensorFlowVersion", "getTensorFlowVersion", "getTensorFlowVersion", "getTensorFlowVersionCallable"]
+            },
+            "ListAcceleratorTypes": {
+              "methods": ["listAcceleratorTypes", "listAcceleratorTypes", "listAcceleratorTypes", "listAcceleratorTypesPagedCallable", "listAcceleratorTypesCallable"]
+            },
+            "ListNodes": {
+              "methods": ["listNodes", "listNodes", "listNodes", "listNodesPagedCallable", "listNodesCallable"]
+            },
+            "ListTensorFlowVersions": {
+              "methods": ["listTensorFlowVersions", "listTensorFlowVersions", "listTensorFlowVersions", "listTensorFlowVersionsPagedCallable", "listTensorFlowVersionsCallable"]
+            },
+            "ReimageNode": {
+              "methods": ["reimageNodeAsync", "reimageNodeOperationCallable", "reimageNodeCallable"]
+            },
+            "StartNode": {
+              "methods": ["startNodeAsync", "startNodeOperationCallable", "startNodeCallable"]
+            },
+            "StopNode": {
+              "methods": ["stopNodeAsync", "stopNodeOperationCallable", "stopNodeCallable"]
+            }
+          }
+        }
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/package-info.java b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/package-info.java
new file mode 100644
index 000000000000..98f17162ac91
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/package-info.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * The interfaces provided are listed below, along with usage samples.
+ *
+ * <p>======================= TpuClient =======================
+ *
+ * <p>Service Description: Manages TPU nodes and other resources
+ *
+ * <p>TPU API v1
+ *
+ * <p>Sample for TpuClient:
+ *
+ * <pre>{@code
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+ * try (TpuClient tpuClient = TpuClient.create()) {
+ *   NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+ *   Node response = tpuClient.getNode(name);
+ * }
+ * }</pre>
+ */
+@Generated("by gapic-generator-java")
+package com.google.cloud.tpu.v1;
+
+import javax.annotation.Generated;
diff --git a/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/GrpcTpuCallableFactory.java b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/GrpcTpuCallableFactory.java
new file mode 100644
index 000000000000..b38cbf30ca57
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/GrpcTpuCallableFactory.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.stub;
+
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * gRPC callable factory implementation for the Tpu service API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@Generated("by gapic-generator-java")
+public class GrpcTpuCallableFactory implements GrpcStubCallableFactory {
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          GrpcCallSettings<RequestT, Operation> grpcCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> callSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, callSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      BidiStreamingCallable<RequestT, ResponseT> createBidiStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ClientStreamingCallable<RequestT, ResponseT> createClientStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/GrpcTpuStub.java b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/GrpcTpuStub.java
new file mode 100644
index 000000000000..1821526d47ee
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/GrpcTpuStub.java
@@ -0,0 +1,582 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.stub;
+
+import static com.google.cloud.tpu.v1.TpuClient.ListAcceleratorTypesPagedResponse;
+import static com.google.cloud.tpu.v1.TpuClient.ListNodesPagedResponse;
+import static com.google.cloud.tpu.v1.TpuClient.ListTensorFlowVersionsPagedResponse;
+
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.tpu.v1.AcceleratorType;
+import com.google.cloud.tpu.v1.CreateNodeRequest;
+import com.google.cloud.tpu.v1.DeleteNodeRequest;
+import com.google.cloud.tpu.v1.GetAcceleratorTypeRequest;
+import com.google.cloud.tpu.v1.GetNodeRequest;
+import com.google.cloud.tpu.v1.GetTensorFlowVersionRequest;
+import com.google.cloud.tpu.v1.ListAcceleratorTypesRequest;
+import com.google.cloud.tpu.v1.ListAcceleratorTypesResponse;
+import com.google.cloud.tpu.v1.ListNodesRequest;
+import com.google.cloud.tpu.v1.ListNodesResponse;
+import com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest;
+import com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.OperationMetadata;
+import com.google.cloud.tpu.v1.ReimageNodeRequest;
+import com.google.cloud.tpu.v1.StartNodeRequest;
+import com.google.cloud.tpu.v1.StopNodeRequest;
+import com.google.cloud.tpu.v1.TensorFlowVersion;
+import com.google.common.collect.ImmutableMap;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.GrpcOperationsStub;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * gRPC stub implementation for the Tpu service API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator-java")
+public class GrpcTpuStub extends TpuStub {
+  private static final MethodDescriptor<ListNodesRequest, ListNodesResponse>
+      listNodesMethodDescriptor =
+          MethodDescriptor.<ListNodesRequest, ListNodesResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.tpu.v1.Tpu/ListNodes")
+              .setRequestMarshaller(ProtoUtils.marshaller(ListNodesRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(ListNodesResponse.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor<GetNodeRequest, Node> getNodeMethodDescriptor =
+      MethodDescriptor.<GetNodeRequest, Node>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.tpu.v1.Tpu/GetNode")
+          .setRequestMarshaller(ProtoUtils.marshaller(GetNodeRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Node.getDefaultInstance()))
+          .build();
+
+  private static final MethodDescriptor<CreateNodeRequest, Operation> createNodeMethodDescriptor =
+      MethodDescriptor.<CreateNodeRequest, Operation>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.tpu.v1.Tpu/CreateNode")
+          .setRequestMarshaller(ProtoUtils.marshaller(CreateNodeRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+          .build();
+
+  private static final MethodDescriptor<DeleteNodeRequest, Operation> deleteNodeMethodDescriptor =
+      MethodDescriptor.<DeleteNodeRequest, Operation>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.tpu.v1.Tpu/DeleteNode")
+          .setRequestMarshaller(ProtoUtils.marshaller(DeleteNodeRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+          .build();
+
+  private static final MethodDescriptor<ReimageNodeRequest, Operation> reimageNodeMethodDescriptor =
+      MethodDescriptor.<ReimageNodeRequest, Operation>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.tpu.v1.Tpu/ReimageNode")
+          .setRequestMarshaller(ProtoUtils.marshaller(ReimageNodeRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+          .build();
+
+  private static final MethodDescriptor<StopNodeRequest, Operation> stopNodeMethodDescriptor =
+      MethodDescriptor.<StopNodeRequest, Operation>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.tpu.v1.Tpu/StopNode")
+          .setRequestMarshaller(ProtoUtils.marshaller(StopNodeRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+          .build();
+
+  private static final MethodDescriptor<StartNodeRequest, Operation> startNodeMethodDescriptor =
+      MethodDescriptor.<StartNodeRequest, Operation>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.tpu.v1.Tpu/StartNode")
+          .setRequestMarshaller(ProtoUtils.marshaller(StartNodeRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+          .build();
+
+  private static final MethodDescriptor<
+          ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse>
+      listTensorFlowVersionsMethodDescriptor =
+          MethodDescriptor
+              .<ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.tpu.v1.Tpu/ListTensorFlowVersions")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(ListTensorFlowVersionsRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(ListTensorFlowVersionsResponse.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor<GetTensorFlowVersionRequest, TensorFlowVersion>
+      getTensorFlowVersionMethodDescriptor =
+          MethodDescriptor.<GetTensorFlowVersionRequest, TensorFlowVersion>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.tpu.v1.Tpu/GetTensorFlowVersion")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(GetTensorFlowVersionRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(TensorFlowVersion.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>
+      listAcceleratorTypesMethodDescriptor =
+          MethodDescriptor.<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.tpu.v1.Tpu/ListAcceleratorTypes")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(ListAcceleratorTypesRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(ListAcceleratorTypesResponse.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor<GetAcceleratorTypeRequest, AcceleratorType>
+      getAcceleratorTypeMethodDescriptor =
+          MethodDescriptor.<GetAcceleratorTypeRequest, AcceleratorType>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.tpu.v1.Tpu/GetAcceleratorType")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(GetAcceleratorTypeRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(AcceleratorType.getDefaultInstance()))
+              .build();
+
+  private final UnaryCallable<ListNodesRequest, ListNodesResponse> listNodesCallable;
+  private final UnaryCallable<ListNodesRequest, ListNodesPagedResponse> listNodesPagedCallable;
+  private final UnaryCallable<GetNodeRequest, Node> getNodeCallable;
+  private final UnaryCallable<CreateNodeRequest, Operation> createNodeCallable;
+  private final OperationCallable<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationCallable;
+  private final UnaryCallable<DeleteNodeRequest, Operation> deleteNodeCallable;
+  private final OperationCallable<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationCallable;
+  private final UnaryCallable<ReimageNodeRequest, Operation> reimageNodeCallable;
+  private final OperationCallable<ReimageNodeRequest, Node, OperationMetadata>
+      reimageNodeOperationCallable;
+  private final UnaryCallable<StopNodeRequest, Operation> stopNodeCallable;
+  private final OperationCallable<StopNodeRequest, Node, OperationMetadata>
+      stopNodeOperationCallable;
+  private final UnaryCallable<StartNodeRequest, Operation> startNodeCallable;
+  private final OperationCallable<StartNodeRequest, Node, OperationMetadata>
+      startNodeOperationCallable;
+  private final UnaryCallable<ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse>
+      listTensorFlowVersionsCallable;
+  private final UnaryCallable<ListTensorFlowVersionsRequest, ListTensorFlowVersionsPagedResponse>
+      listTensorFlowVersionsPagedCallable;
+  private final UnaryCallable<GetTensorFlowVersionRequest, TensorFlowVersion>
+      getTensorFlowVersionCallable;
+  private final UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>
+      listAcceleratorTypesCallable;
+  private final UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesPagedCallable;
+  private final UnaryCallable<GetAcceleratorTypeRequest, AcceleratorType>
+      getAcceleratorTypeCallable;
+
+  private final BackgroundResource backgroundResources;
+  private final GrpcOperationsStub operationsStub;
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcTpuStub create(TpuStubSettings settings) throws IOException {
+    return new GrpcTpuStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcTpuStub create(ClientContext clientContext) throws IOException {
+    return new GrpcTpuStub(TpuStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcTpuStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcTpuStub(TpuStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcTpuStub, using the given settings. This is protected so that it
+   * is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcTpuStub(TpuStubSettings settings, ClientContext clientContext) throws IOException {
+    this(settings, clientContext, new GrpcTpuCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcTpuStub, using the given settings. This is protected so that it
+   * is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcTpuStub(
+      TpuStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+    this.operationsStub = GrpcOperationsStub.create(clientContext, callableFactory);
+
+    GrpcCallSettings<ListNodesRequest, ListNodesResponse> listNodesTransportSettings =
+        GrpcCallSettings.<ListNodesRequest, ListNodesResponse>newBuilder()
+            .setMethodDescriptor(listNodesMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("parent", String.valueOf(request.getParent()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<GetNodeRequest, Node> getNodeTransportSettings =
+        GrpcCallSettings.<GetNodeRequest, Node>newBuilder()
+            .setMethodDescriptor(getNodeMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("name", String.valueOf(request.getName()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<CreateNodeRequest, Operation> createNodeTransportSettings =
+        GrpcCallSettings.<CreateNodeRequest, Operation>newBuilder()
+            .setMethodDescriptor(createNodeMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("parent", String.valueOf(request.getParent()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<DeleteNodeRequest, Operation> deleteNodeTransportSettings =
+        GrpcCallSettings.<DeleteNodeRequest, Operation>newBuilder()
+            .setMethodDescriptor(deleteNodeMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("name", String.valueOf(request.getName()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<ReimageNodeRequest, Operation> reimageNodeTransportSettings =
+        GrpcCallSettings.<ReimageNodeRequest, Operation>newBuilder()
+            .setMethodDescriptor(reimageNodeMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("name", String.valueOf(request.getName()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<StopNodeRequest, Operation> stopNodeTransportSettings =
+        GrpcCallSettings.<StopNodeRequest, Operation>newBuilder()
+            .setMethodDescriptor(stopNodeMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("name", String.valueOf(request.getName()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<StartNodeRequest, Operation> startNodeTransportSettings =
+        GrpcCallSettings.<StartNodeRequest, Operation>newBuilder()
+            .setMethodDescriptor(startNodeMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("name", String.valueOf(request.getName()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse>
+        listTensorFlowVersionsTransportSettings =
+            GrpcCallSettings
+                .<ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse>newBuilder()
+                .setMethodDescriptor(listTensorFlowVersionsMethodDescriptor)
+                .setParamsExtractor(
+                    request -> {
+                      ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                      params.put("parent", String.valueOf(request.getParent()));
+                      return params.build();
+                    })
+                .build();
+    GrpcCallSettings<GetTensorFlowVersionRequest, TensorFlowVersion>
+        getTensorFlowVersionTransportSettings =
+            GrpcCallSettings.<GetTensorFlowVersionRequest, TensorFlowVersion>newBuilder()
+                .setMethodDescriptor(getTensorFlowVersionMethodDescriptor)
+                .setParamsExtractor(
+                    request -> {
+                      ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                      params.put("name", String.valueOf(request.getName()));
+                      return params.build();
+                    })
+                .build();
+    GrpcCallSettings<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>
+        listAcceleratorTypesTransportSettings =
+            GrpcCallSettings.<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>newBuilder()
+                .setMethodDescriptor(listAcceleratorTypesMethodDescriptor)
+                .setParamsExtractor(
+                    request -> {
+                      ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                      params.put("parent", String.valueOf(request.getParent()));
+                      return params.build();
+                    })
+                .build();
+    GrpcCallSettings<GetAcceleratorTypeRequest, AcceleratorType>
+        getAcceleratorTypeTransportSettings =
+            GrpcCallSettings.<GetAcceleratorTypeRequest, AcceleratorType>newBuilder()
+                .setMethodDescriptor(getAcceleratorTypeMethodDescriptor)
+                .setParamsExtractor(
+                    request -> {
+                      ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                      params.put("name", String.valueOf(request.getName()));
+                      return params.build();
+                    })
+                .build();
+
+    this.listNodesCallable =
+        callableFactory.createUnaryCallable(
+            listNodesTransportSettings, settings.listNodesSettings(), clientContext);
+    this.listNodesPagedCallable =
+        callableFactory.createPagedCallable(
+            listNodesTransportSettings, settings.listNodesSettings(), clientContext);
+    this.getNodeCallable =
+        callableFactory.createUnaryCallable(
+            getNodeTransportSettings, settings.getNodeSettings(), clientContext);
+    this.createNodeCallable =
+        callableFactory.createUnaryCallable(
+            createNodeTransportSettings, settings.createNodeSettings(), clientContext);
+    this.createNodeOperationCallable =
+        callableFactory.createOperationCallable(
+            createNodeTransportSettings,
+            settings.createNodeOperationSettings(),
+            clientContext,
+            operationsStub);
+    this.deleteNodeCallable =
+        callableFactory.createUnaryCallable(
+            deleteNodeTransportSettings, settings.deleteNodeSettings(), clientContext);
+    this.deleteNodeOperationCallable =
+        callableFactory.createOperationCallable(
+            deleteNodeTransportSettings,
+            settings.deleteNodeOperationSettings(),
+            clientContext,
+            operationsStub);
+    this.reimageNodeCallable =
+        callableFactory.createUnaryCallable(
+            reimageNodeTransportSettings, settings.reimageNodeSettings(), clientContext);
+    this.reimageNodeOperationCallable =
+        callableFactory.createOperationCallable(
+            reimageNodeTransportSettings,
+            settings.reimageNodeOperationSettings(),
+            clientContext,
+            operationsStub);
+    this.stopNodeCallable =
+        callableFactory.createUnaryCallable(
+            stopNodeTransportSettings, settings.stopNodeSettings(), clientContext);
+    this.stopNodeOperationCallable =
+        callableFactory.createOperationCallable(
+            stopNodeTransportSettings,
+            settings.stopNodeOperationSettings(),
+            clientContext,
+            operationsStub);
+    this.startNodeCallable =
+        callableFactory.createUnaryCallable(
+            startNodeTransportSettings, settings.startNodeSettings(), clientContext);
+    this.startNodeOperationCallable =
+        callableFactory.createOperationCallable(
+            startNodeTransportSettings,
+            settings.startNodeOperationSettings(),
+            clientContext,
+            operationsStub);
+    this.listTensorFlowVersionsCallable =
+        callableFactory.createUnaryCallable(
+            listTensorFlowVersionsTransportSettings,
+            settings.listTensorFlowVersionsSettings(),
+            clientContext);
+    this.listTensorFlowVersionsPagedCallable =
+        callableFactory.createPagedCallable(
+            listTensorFlowVersionsTransportSettings,
+            settings.listTensorFlowVersionsSettings(),
+            clientContext);
+    this.getTensorFlowVersionCallable =
+        callableFactory.createUnaryCallable(
+            getTensorFlowVersionTransportSettings,
+            settings.getTensorFlowVersionSettings(),
+            clientContext);
+    this.listAcceleratorTypesCallable =
+        callableFactory.createUnaryCallable(
+            listAcceleratorTypesTransportSettings,
+            settings.listAcceleratorTypesSettings(),
+            clientContext);
+    this.listAcceleratorTypesPagedCallable =
+        callableFactory.createPagedCallable(
+            listAcceleratorTypesTransportSettings,
+            settings.listAcceleratorTypesSettings(),
+            clientContext);
+    this.getAcceleratorTypeCallable =
+        callableFactory.createUnaryCallable(
+            getAcceleratorTypeTransportSettings,
+            settings.getAcceleratorTypeSettings(),
+            clientContext);
+
+    this.backgroundResources =
+        new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  public GrpcOperationsStub getOperationsStub() {
+    return operationsStub;
+  }
+
+  @Override
+  public UnaryCallable<ListNodesRequest, ListNodesResponse> listNodesCallable() {
+    return listNodesCallable;
+  }
+
+  @Override
+  public UnaryCallable<ListNodesRequest, ListNodesPagedResponse> listNodesPagedCallable() {
+    return listNodesPagedCallable;
+  }
+
+  @Override
+  public UnaryCallable<GetNodeRequest, Node> getNodeCallable() {
+    return getNodeCallable;
+  }
+
+  @Override
+  public UnaryCallable<CreateNodeRequest, Operation> createNodeCallable() {
+    return createNodeCallable;
+  }
+
+  @Override
+  public OperationCallable<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationCallable() {
+    return createNodeOperationCallable;
+  }
+
+  @Override
+  public UnaryCallable<DeleteNodeRequest, Operation> deleteNodeCallable() {
+    return deleteNodeCallable;
+  }
+
+  @Override
+  public OperationCallable<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationCallable() {
+    return deleteNodeOperationCallable;
+  }
+
+  @Override
+  public UnaryCallable<ReimageNodeRequest, Operation> reimageNodeCallable() {
+    return reimageNodeCallable;
+  }
+
+  @Override
+  public OperationCallable<ReimageNodeRequest, Node, OperationMetadata>
+      reimageNodeOperationCallable() {
+    return reimageNodeOperationCallable;
+  }
+
+  @Override
+  public UnaryCallable<StopNodeRequest, Operation> stopNodeCallable() {
+    return stopNodeCallable;
+  }
+
+  @Override
+  public OperationCallable<StopNodeRequest, Node, OperationMetadata> stopNodeOperationCallable() {
+    return stopNodeOperationCallable;
+  }
+
+  @Override
+  public UnaryCallable<StartNodeRequest, Operation> startNodeCallable() {
+    return startNodeCallable;
+  }
+
+  @Override
+  public OperationCallable<StartNodeRequest, Node, OperationMetadata> startNodeOperationCallable() {
+    return startNodeOperationCallable;
+  }
+
+  @Override
+  public UnaryCallable<ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse>
+      listTensorFlowVersionsCallable() {
+    return listTensorFlowVersionsCallable;
+  }
+
+  @Override
+  public UnaryCallable<ListTensorFlowVersionsRequest, ListTensorFlowVersionsPagedResponse>
+      listTensorFlowVersionsPagedCallable() {
+    return listTensorFlowVersionsPagedCallable;
+  }
+
+  @Override
+  public UnaryCallable<GetTensorFlowVersionRequest, TensorFlowVersion>
+      getTensorFlowVersionCallable() {
+    return getTensorFlowVersionCallable;
+  }
+
+  @Override
+  public UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>
+      listAcceleratorTypesCallable() {
+    return listAcceleratorTypesCallable;
+  }
+
+  @Override
+  public UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesPagedCallable() {
+    return listAcceleratorTypesPagedCallable;
+  }
+
+  @Override
+  public UnaryCallable<GetAcceleratorTypeRequest, AcceleratorType> getAcceleratorTypeCallable() {
+    return getAcceleratorTypeCallable;
+  }
+
+  @Override
+  public final void close() {
+    try {
+      backgroundResources.close();
+    } catch (RuntimeException e) {
+      throw e;
+    } catch (Exception e) {
+      throw new IllegalStateException("Failed to close resource", e);
+    }
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/TpuStub.java b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/TpuStub.java
new file mode 100644
index 000000000000..588921956a6a
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/TpuStub.java
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.stub;
+
+import static com.google.cloud.tpu.v1.TpuClient.ListAcceleratorTypesPagedResponse;
+import static com.google.cloud.tpu.v1.TpuClient.ListNodesPagedResponse;
+import static com.google.cloud.tpu.v1.TpuClient.ListTensorFlowVersionsPagedResponse;
+
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.tpu.v1.AcceleratorType;
+import com.google.cloud.tpu.v1.CreateNodeRequest;
+import com.google.cloud.tpu.v1.DeleteNodeRequest;
+import com.google.cloud.tpu.v1.GetAcceleratorTypeRequest;
+import com.google.cloud.tpu.v1.GetNodeRequest;
+import com.google.cloud.tpu.v1.GetTensorFlowVersionRequest;
+import com.google.cloud.tpu.v1.ListAcceleratorTypesRequest;
+import com.google.cloud.tpu.v1.ListAcceleratorTypesResponse;
+import com.google.cloud.tpu.v1.ListNodesRequest;
+import com.google.cloud.tpu.v1.ListNodesResponse;
+import com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest;
+import com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.OperationMetadata;
+import com.google.cloud.tpu.v1.ReimageNodeRequest;
+import com.google.cloud.tpu.v1.StartNodeRequest;
+import com.google.cloud.tpu.v1.StopNodeRequest;
+import com.google.cloud.tpu.v1.TensorFlowVersion;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Base stub class for the Tpu service API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@Generated("by gapic-generator-java")
+public abstract class TpuStub implements BackgroundResource {
+
+  public OperationsStub getOperationsStub() {
+    throw new UnsupportedOperationException("Not implemented: getOperationsStub()");
+  }
+
+  public UnaryCallable<ListNodesRequest, ListNodesPagedResponse> listNodesPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listNodesPagedCallable()");
+  }
+
+  public UnaryCallable<ListNodesRequest, ListNodesResponse> listNodesCallable() {
+    throw new UnsupportedOperationException("Not implemented: listNodesCallable()");
+  }
+
+  public UnaryCallable<GetNodeRequest, Node> getNodeCallable() {
+    throw new UnsupportedOperationException("Not implemented: getNodeCallable()");
+  }
+
+  public OperationCallable<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: createNodeOperationCallable()");
+  }
+
+  public UnaryCallable<CreateNodeRequest, Operation> createNodeCallable() {
+    throw new UnsupportedOperationException("Not implemented: createNodeCallable()");
+  }
+
+  public OperationCallable<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: deleteNodeOperationCallable()");
+  }
+
+  public UnaryCallable<DeleteNodeRequest, Operation> deleteNodeCallable() {
+    throw new UnsupportedOperationException("Not implemented: deleteNodeCallable()");
+  }
+
+  public OperationCallable<ReimageNodeRequest, Node, OperationMetadata>
+      reimageNodeOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: reimageNodeOperationCallable()");
+  }
+
+  public UnaryCallable<ReimageNodeRequest, Operation> reimageNodeCallable() {
+    throw new UnsupportedOperationException("Not implemented: reimageNodeCallable()");
+  }
+
+  public OperationCallable<StopNodeRequest, Node, OperationMetadata> stopNodeOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: stopNodeOperationCallable()");
+  }
+
+  public UnaryCallable<StopNodeRequest, Operation> stopNodeCallable() {
+    throw new UnsupportedOperationException("Not implemented: stopNodeCallable()");
+  }
+
+  public OperationCallable<StartNodeRequest, Node, OperationMetadata> startNodeOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: startNodeOperationCallable()");
+  }
+
+  public UnaryCallable<StartNodeRequest, Operation> startNodeCallable() {
+    throw new UnsupportedOperationException("Not implemented: startNodeCallable()");
+  }
+
+  public UnaryCallable<ListTensorFlowVersionsRequest, ListTensorFlowVersionsPagedResponse>
+      listTensorFlowVersionsPagedCallable() {
+    throw new UnsupportedOperationException(
+        "Not implemented: listTensorFlowVersionsPagedCallable()");
+  }
+
+  public UnaryCallable<ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse>
+      listTensorFlowVersionsCallable() {
+    throw new UnsupportedOperationException("Not implemented: listTensorFlowVersionsCallable()");
+  }
+
+  public UnaryCallable<GetTensorFlowVersionRequest, TensorFlowVersion>
+      getTensorFlowVersionCallable() {
+    throw new UnsupportedOperationException("Not implemented: getTensorFlowVersionCallable()");
+  }
+
+  public UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listAcceleratorTypesPagedCallable()");
+  }
+
+  public UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>
+      listAcceleratorTypesCallable() {
+    throw new UnsupportedOperationException("Not implemented: listAcceleratorTypesCallable()");
+  }
+
+  public UnaryCallable<GetAcceleratorTypeRequest, AcceleratorType> getAcceleratorTypeCallable() {
+    throw new UnsupportedOperationException("Not implemented: getAcceleratorTypeCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/TpuStubSettings.java b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/TpuStubSettings.java
new file mode 100644
index 000000000000..a527232ad04e
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v1/stub/TpuStubSettings.java
@@ -0,0 +1,973 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.stub;
+
+import static com.google.cloud.tpu.v1.TpuClient.ListAcceleratorTypesPagedResponse;
+import static com.google.cloud.tpu.v1.TpuClient.ListNodesPagedResponse;
+import static com.google.cloud.tpu.v1.TpuClient.ListTensorFlowVersionsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.grpc.ProtoOperationTransformers;
+import com.google.api.gax.longrunning.OperationSnapshot;
+import com.google.api.gax.longrunning.OperationTimedPollAlgorithm;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiCallContext;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.PagedListDescriptor;
+import com.google.api.gax.rpc.PagedListResponseFactory;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.tpu.v1.AcceleratorType;
+import com.google.cloud.tpu.v1.CreateNodeRequest;
+import com.google.cloud.tpu.v1.DeleteNodeRequest;
+import com.google.cloud.tpu.v1.GetAcceleratorTypeRequest;
+import com.google.cloud.tpu.v1.GetNodeRequest;
+import com.google.cloud.tpu.v1.GetTensorFlowVersionRequest;
+import com.google.cloud.tpu.v1.ListAcceleratorTypesRequest;
+import com.google.cloud.tpu.v1.ListAcceleratorTypesResponse;
+import com.google.cloud.tpu.v1.ListNodesRequest;
+import com.google.cloud.tpu.v1.ListNodesResponse;
+import com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest;
+import com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.OperationMetadata;
+import com.google.cloud.tpu.v1.ReimageNodeRequest;
+import com.google.cloud.tpu.v1.StartNodeRequest;
+import com.google.cloud.tpu.v1.StopNodeRequest;
+import com.google.cloud.tpu.v1.TensorFlowVersion;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.longrunning.Operation;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Settings class to configure an instance of {@link TpuStub}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (tpu.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getNode to 30 seconds:
+ *
+ * <pre>{@code
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+ * TpuStubSettings.Builder tpuSettingsBuilder = TpuStubSettings.newBuilder();
+ * tpuSettingsBuilder
+ *     .getNodeSettings()
+ *     .setRetrySettings(
+ *         tpuSettingsBuilder.getNodeSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * TpuStubSettings tpuSettings = tpuSettingsBuilder.build();
+ * }</pre>
+ */
+@Generated("by gapic-generator-java")
+public class TpuStubSettings extends StubSettings<TpuStubSettings> {
+  /** The default scopes of the service. */
+  private static final ImmutableList<String> DEFAULT_SERVICE_SCOPES =
+      ImmutableList.<String>builder().add("https://www.googleapis.com/auth/cloud-platform").build();
+
+  private final PagedCallSettings<ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+      listNodesSettings;
+  private final UnaryCallSettings<GetNodeRequest, Node> getNodeSettings;
+  private final UnaryCallSettings<CreateNodeRequest, Operation> createNodeSettings;
+  private final OperationCallSettings<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationSettings;
+  private final UnaryCallSettings<DeleteNodeRequest, Operation> deleteNodeSettings;
+  private final OperationCallSettings<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationSettings;
+  private final UnaryCallSettings<ReimageNodeRequest, Operation> reimageNodeSettings;
+  private final OperationCallSettings<ReimageNodeRequest, Node, OperationMetadata>
+      reimageNodeOperationSettings;
+  private final UnaryCallSettings<StopNodeRequest, Operation> stopNodeSettings;
+  private final OperationCallSettings<StopNodeRequest, Node, OperationMetadata>
+      stopNodeOperationSettings;
+  private final UnaryCallSettings<StartNodeRequest, Operation> startNodeSettings;
+  private final OperationCallSettings<StartNodeRequest, Node, OperationMetadata>
+      startNodeOperationSettings;
+  private final PagedCallSettings<
+          ListTensorFlowVersionsRequest,
+          ListTensorFlowVersionsResponse,
+          ListTensorFlowVersionsPagedResponse>
+      listTensorFlowVersionsSettings;
+  private final UnaryCallSettings<GetTensorFlowVersionRequest, TensorFlowVersion>
+      getTensorFlowVersionSettings;
+  private final PagedCallSettings<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesSettings;
+  private final UnaryCallSettings<GetAcceleratorTypeRequest, AcceleratorType>
+      getAcceleratorTypeSettings;
+
+  private static final PagedListDescriptor<ListNodesRequest, ListNodesResponse, Node>
+      LIST_NODES_PAGE_STR_DESC =
+          new PagedListDescriptor<ListNodesRequest, ListNodesResponse, Node>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListNodesRequest injectToken(ListNodesRequest payload, String token) {
+              return ListNodesRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListNodesRequest injectPageSize(ListNodesRequest payload, int pageSize) {
+              return ListNodesRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListNodesRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListNodesResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<Node> extractResources(ListNodesResponse payload) {
+              return payload.getNodesList() == null
+                  ? ImmutableList.<Node>of()
+                  : payload.getNodesList();
+            }
+          };
+
+  private static final PagedListDescriptor<
+          ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse, TensorFlowVersion>
+      LIST_TENSOR_FLOW_VERSIONS_PAGE_STR_DESC =
+          new PagedListDescriptor<
+              ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse, TensorFlowVersion>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListTensorFlowVersionsRequest injectToken(
+                ListTensorFlowVersionsRequest payload, String token) {
+              return ListTensorFlowVersionsRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListTensorFlowVersionsRequest injectPageSize(
+                ListTensorFlowVersionsRequest payload, int pageSize) {
+              return ListTensorFlowVersionsRequest.newBuilder(payload)
+                  .setPageSize(pageSize)
+                  .build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListTensorFlowVersionsRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListTensorFlowVersionsResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<TensorFlowVersion> extractResources(
+                ListTensorFlowVersionsResponse payload) {
+              return payload.getTensorflowVersionsList() == null
+                  ? ImmutableList.<TensorFlowVersion>of()
+                  : payload.getTensorflowVersionsList();
+            }
+          };
+
+  private static final PagedListDescriptor<
+          ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>
+      LIST_ACCELERATOR_TYPES_PAGE_STR_DESC =
+          new PagedListDescriptor<
+              ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListAcceleratorTypesRequest injectToken(
+                ListAcceleratorTypesRequest payload, String token) {
+              return ListAcceleratorTypesRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListAcceleratorTypesRequest injectPageSize(
+                ListAcceleratorTypesRequest payload, int pageSize) {
+              return ListAcceleratorTypesRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListAcceleratorTypesRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListAcceleratorTypesResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<AcceleratorType> extractResources(
+                ListAcceleratorTypesResponse payload) {
+              return payload.getAcceleratorTypesList() == null
+                  ? ImmutableList.<AcceleratorType>of()
+                  : payload.getAcceleratorTypesList();
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+      LIST_NODES_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>() {
+            @Override
+            public ApiFuture<ListNodesPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListNodesRequest, ListNodesResponse> callable,
+                ListNodesRequest request,
+                ApiCallContext context,
+                ApiFuture<ListNodesResponse> futureResponse) {
+              PageContext<ListNodesRequest, ListNodesResponse, Node> pageContext =
+                  PageContext.create(callable, LIST_NODES_PAGE_STR_DESC, request, context);
+              return ListNodesPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListTensorFlowVersionsRequest,
+          ListTensorFlowVersionsResponse,
+          ListTensorFlowVersionsPagedResponse>
+      LIST_TENSOR_FLOW_VERSIONS_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListTensorFlowVersionsRequest,
+              ListTensorFlowVersionsResponse,
+              ListTensorFlowVersionsPagedResponse>() {
+            @Override
+            public ApiFuture<ListTensorFlowVersionsPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListTensorFlowVersionsRequest, ListTensorFlowVersionsResponse>
+                    callable,
+                ListTensorFlowVersionsRequest request,
+                ApiCallContext context,
+                ApiFuture<ListTensorFlowVersionsResponse> futureResponse) {
+              PageContext<
+                      ListTensorFlowVersionsRequest,
+                      ListTensorFlowVersionsResponse,
+                      TensorFlowVersion>
+                  pageContext =
+                      PageContext.create(
+                          callable, LIST_TENSOR_FLOW_VERSIONS_PAGE_STR_DESC, request, context);
+              return ListTensorFlowVersionsPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          ListAcceleratorTypesPagedResponse>
+      LIST_ACCELERATOR_TYPES_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListAcceleratorTypesRequest,
+              ListAcceleratorTypesResponse,
+              ListAcceleratorTypesPagedResponse>() {
+            @Override
+            public ApiFuture<ListAcceleratorTypesPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse> callable,
+                ListAcceleratorTypesRequest request,
+                ApiCallContext context,
+                ApiFuture<ListAcceleratorTypesResponse> futureResponse) {
+              PageContext<
+                      ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>
+                  pageContext =
+                      PageContext.create(
+                          callable, LIST_ACCELERATOR_TYPES_PAGE_STR_DESC, request, context);
+              return ListAcceleratorTypesPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  /** Returns the object with the settings used for calls to listNodes. */
+  public PagedCallSettings<ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+      listNodesSettings() {
+    return listNodesSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getNode. */
+  public UnaryCallSettings<GetNodeRequest, Node> getNodeSettings() {
+    return getNodeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createNode. */
+  public UnaryCallSettings<CreateNodeRequest, Operation> createNodeSettings() {
+    return createNodeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createNode. */
+  public OperationCallSettings<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationSettings() {
+    return createNodeOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteNode. */
+  public UnaryCallSettings<DeleteNodeRequest, Operation> deleteNodeSettings() {
+    return deleteNodeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteNode. */
+  public OperationCallSettings<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationSettings() {
+    return deleteNodeOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to reimageNode. */
+  public UnaryCallSettings<ReimageNodeRequest, Operation> reimageNodeSettings() {
+    return reimageNodeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to reimageNode. */
+  public OperationCallSettings<ReimageNodeRequest, Node, OperationMetadata>
+      reimageNodeOperationSettings() {
+    return reimageNodeOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to stopNode. */
+  public UnaryCallSettings<StopNodeRequest, Operation> stopNodeSettings() {
+    return stopNodeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to stopNode. */
+  public OperationCallSettings<StopNodeRequest, Node, OperationMetadata>
+      stopNodeOperationSettings() {
+    return stopNodeOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to startNode. */
+  public UnaryCallSettings<StartNodeRequest, Operation> startNodeSettings() {
+    return startNodeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to startNode. */
+  public OperationCallSettings<StartNodeRequest, Node, OperationMetadata>
+      startNodeOperationSettings() {
+    return startNodeOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to listTensorFlowVersions. */
+  public PagedCallSettings<
+          ListTensorFlowVersionsRequest,
+          ListTensorFlowVersionsResponse,
+          ListTensorFlowVersionsPagedResponse>
+      listTensorFlowVersionsSettings() {
+    return listTensorFlowVersionsSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getTensorFlowVersion. */
+  public UnaryCallSettings<GetTensorFlowVersionRequest, TensorFlowVersion>
+      getTensorFlowVersionSettings() {
+    return getTensorFlowVersionSettings;
+  }
+
+  /** Returns the object with the settings used for calls to listAcceleratorTypes. */
+  public PagedCallSettings<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesSettings() {
+    return listAcceleratorTypesSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getAcceleratorType. */
+  public UnaryCallSettings<GetAcceleratorTypeRequest, AcceleratorType>
+      getAcceleratorTypeSettings() {
+    return getAcceleratorTypeSettings;
+  }
+
+  public TpuStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcTpuStub.create(this);
+    }
+    throw new UnsupportedOperationException(
+        String.format(
+            "Transport not supported: %s", getTransportChannelProvider().getTransportName()));
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "tpu.googleapis.com:443";
+  }
+
+  /** Returns the default mTLS service endpoint. */
+  public static String getDefaultMtlsEndpoint() {
+    return "tpu.mtls.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder()
+        .setScopesToApply(DEFAULT_SERVICE_SCOPES)
+        .setUseJwtAccessWithScope(true);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken("gapic", GaxProperties.getLibraryVersion(TpuStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected TpuStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    listNodesSettings = settingsBuilder.listNodesSettings().build();
+    getNodeSettings = settingsBuilder.getNodeSettings().build();
+    createNodeSettings = settingsBuilder.createNodeSettings().build();
+    createNodeOperationSettings = settingsBuilder.createNodeOperationSettings().build();
+    deleteNodeSettings = settingsBuilder.deleteNodeSettings().build();
+    deleteNodeOperationSettings = settingsBuilder.deleteNodeOperationSettings().build();
+    reimageNodeSettings = settingsBuilder.reimageNodeSettings().build();
+    reimageNodeOperationSettings = settingsBuilder.reimageNodeOperationSettings().build();
+    stopNodeSettings = settingsBuilder.stopNodeSettings().build();
+    stopNodeOperationSettings = settingsBuilder.stopNodeOperationSettings().build();
+    startNodeSettings = settingsBuilder.startNodeSettings().build();
+    startNodeOperationSettings = settingsBuilder.startNodeOperationSettings().build();
+    listTensorFlowVersionsSettings = settingsBuilder.listTensorFlowVersionsSettings().build();
+    getTensorFlowVersionSettings = settingsBuilder.getTensorFlowVersionSettings().build();
+    listAcceleratorTypesSettings = settingsBuilder.listAcceleratorTypesSettings().build();
+    getAcceleratorTypeSettings = settingsBuilder.getAcceleratorTypeSettings().build();
+  }
+
+  /** Builder for TpuStubSettings. */
+  public static class Builder extends StubSettings.Builder<TpuStubSettings, Builder> {
+    private final ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders;
+    private final PagedCallSettings.Builder<
+            ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+        listNodesSettings;
+    private final UnaryCallSettings.Builder<GetNodeRequest, Node> getNodeSettings;
+    private final UnaryCallSettings.Builder<CreateNodeRequest, Operation> createNodeSettings;
+    private final OperationCallSettings.Builder<CreateNodeRequest, Node, OperationMetadata>
+        createNodeOperationSettings;
+    private final UnaryCallSettings.Builder<DeleteNodeRequest, Operation> deleteNodeSettings;
+    private final OperationCallSettings.Builder<DeleteNodeRequest, Node, OperationMetadata>
+        deleteNodeOperationSettings;
+    private final UnaryCallSettings.Builder<ReimageNodeRequest, Operation> reimageNodeSettings;
+    private final OperationCallSettings.Builder<ReimageNodeRequest, Node, OperationMetadata>
+        reimageNodeOperationSettings;
+    private final UnaryCallSettings.Builder<StopNodeRequest, Operation> stopNodeSettings;
+    private final OperationCallSettings.Builder<StopNodeRequest, Node, OperationMetadata>
+        stopNodeOperationSettings;
+    private final UnaryCallSettings.Builder<StartNodeRequest, Operation> startNodeSettings;
+    private final OperationCallSettings.Builder<StartNodeRequest, Node, OperationMetadata>
+        startNodeOperationSettings;
+    private final PagedCallSettings.Builder<
+            ListTensorFlowVersionsRequest,
+            ListTensorFlowVersionsResponse,
+            ListTensorFlowVersionsPagedResponse>
+        listTensorFlowVersionsSettings;
+    private final UnaryCallSettings.Builder<GetTensorFlowVersionRequest, TensorFlowVersion>
+        getTensorFlowVersionSettings;
+    private final PagedCallSettings.Builder<
+            ListAcceleratorTypesRequest,
+            ListAcceleratorTypesResponse,
+            ListAcceleratorTypesPagedResponse>
+        listAcceleratorTypesSettings;
+    private final UnaryCallSettings.Builder<GetAcceleratorTypeRequest, AcceleratorType>
+        getAcceleratorTypeSettings;
+    private static final ImmutableMap<String, ImmutableSet<StatusCode.Code>>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, ImmutableSet<StatusCode.Code>> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "no_retry_0_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap<String, RetrySettings> RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("no_retry_0_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this(((ClientContext) null));
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      listNodesSettings = PagedCallSettings.newBuilder(LIST_NODES_PAGE_STR_FACT);
+      getNodeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      createNodeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      createNodeOperationSettings = OperationCallSettings.newBuilder();
+      deleteNodeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      deleteNodeOperationSettings = OperationCallSettings.newBuilder();
+      reimageNodeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      reimageNodeOperationSettings = OperationCallSettings.newBuilder();
+      stopNodeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      stopNodeOperationSettings = OperationCallSettings.newBuilder();
+      startNodeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      startNodeOperationSettings = OperationCallSettings.newBuilder();
+      listTensorFlowVersionsSettings =
+          PagedCallSettings.newBuilder(LIST_TENSOR_FLOW_VERSIONS_PAGE_STR_FACT);
+      getTensorFlowVersionSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      listAcceleratorTypesSettings =
+          PagedCallSettings.newBuilder(LIST_ACCELERATOR_TYPES_PAGE_STR_FACT);
+      getAcceleratorTypeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listNodesSettings,
+              getNodeSettings,
+              createNodeSettings,
+              deleteNodeSettings,
+              reimageNodeSettings,
+              stopNodeSettings,
+              startNodeSettings,
+              listTensorFlowVersionsSettings,
+              getTensorFlowVersionSettings,
+              listAcceleratorTypesSettings,
+              getAcceleratorTypeSettings);
+      initDefaults(this);
+    }
+
+    protected Builder(TpuStubSettings settings) {
+      super(settings);
+
+      listNodesSettings = settings.listNodesSettings.toBuilder();
+      getNodeSettings = settings.getNodeSettings.toBuilder();
+      createNodeSettings = settings.createNodeSettings.toBuilder();
+      createNodeOperationSettings = settings.createNodeOperationSettings.toBuilder();
+      deleteNodeSettings = settings.deleteNodeSettings.toBuilder();
+      deleteNodeOperationSettings = settings.deleteNodeOperationSettings.toBuilder();
+      reimageNodeSettings = settings.reimageNodeSettings.toBuilder();
+      reimageNodeOperationSettings = settings.reimageNodeOperationSettings.toBuilder();
+      stopNodeSettings = settings.stopNodeSettings.toBuilder();
+      stopNodeOperationSettings = settings.stopNodeOperationSettings.toBuilder();
+      startNodeSettings = settings.startNodeSettings.toBuilder();
+      startNodeOperationSettings = settings.startNodeOperationSettings.toBuilder();
+      listTensorFlowVersionsSettings = settings.listTensorFlowVersionsSettings.toBuilder();
+      getTensorFlowVersionSettings = settings.getTensorFlowVersionSettings.toBuilder();
+      listAcceleratorTypesSettings = settings.listAcceleratorTypesSettings.toBuilder();
+      getAcceleratorTypeSettings = settings.getAcceleratorTypeSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listNodesSettings,
+              getNodeSettings,
+              createNodeSettings,
+              deleteNodeSettings,
+              reimageNodeSettings,
+              stopNodeSettings,
+              startNodeSettings,
+              listTensorFlowVersionsSettings,
+              getTensorFlowVersionSettings,
+              listAcceleratorTypesSettings,
+              getAcceleratorTypeSettings);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder(((ClientContext) null));
+
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      builder.setMtlsEndpoint(getDefaultMtlsEndpoint());
+      builder.setSwitchToMtlsEndpointAllowed(true);
+
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+      builder
+          .listNodesSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .getNodeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .createNodeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .deleteNodeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .reimageNodeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .stopNodeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .startNodeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .listTensorFlowVersionsSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .getTensorFlowVersionSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .listAcceleratorTypesSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .getAcceleratorTypeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .createNodeOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings.<CreateNodeRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"))
+                  .build())
+          .setResponseTransformer(ProtoOperationTransformers.ResponseTransformer.create(Node.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(OperationMetadata.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(5000L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(45000L))
+                      .setInitialRpcTimeout(Duration.ZERO)
+                      .setRpcTimeoutMultiplier(1.0)
+                      .setMaxRpcTimeout(Duration.ZERO)
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      builder
+          .deleteNodeOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings.<DeleteNodeRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"))
+                  .build())
+          .setResponseTransformer(ProtoOperationTransformers.ResponseTransformer.create(Node.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(OperationMetadata.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(5000L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(45000L))
+                      .setInitialRpcTimeout(Duration.ZERO)
+                      .setRpcTimeoutMultiplier(1.0)
+                      .setMaxRpcTimeout(Duration.ZERO)
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      builder
+          .reimageNodeOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings.<ReimageNodeRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"))
+                  .build())
+          .setResponseTransformer(ProtoOperationTransformers.ResponseTransformer.create(Node.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(OperationMetadata.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(5000L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(45000L))
+                      .setInitialRpcTimeout(Duration.ZERO)
+                      .setRpcTimeoutMultiplier(1.0)
+                      .setMaxRpcTimeout(Duration.ZERO)
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      builder
+          .stopNodeOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings.<StopNodeRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"))
+                  .build())
+          .setResponseTransformer(ProtoOperationTransformers.ResponseTransformer.create(Node.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(OperationMetadata.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(5000L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(45000L))
+                      .setInitialRpcTimeout(Duration.ZERO)
+                      .setRpcTimeoutMultiplier(1.0)
+                      .setMaxRpcTimeout(Duration.ZERO)
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      builder
+          .startNodeOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings.<StartNodeRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"))
+                  .build())
+          .setResponseTransformer(ProtoOperationTransformers.ResponseTransformer.create(Node.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(OperationMetadata.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(5000L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(45000L))
+                      .setInitialRpcTimeout(Duration.ZERO)
+                      .setRpcTimeoutMultiplier(1.0)
+                      .setMaxRpcTimeout(Duration.ZERO)
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      return builder;
+    }
+
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to listNodes. */
+    public PagedCallSettings.Builder<ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+        listNodesSettings() {
+      return listNodesSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getNode. */
+    public UnaryCallSettings.Builder<GetNodeRequest, Node> getNodeSettings() {
+      return getNodeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createNode. */
+    public UnaryCallSettings.Builder<CreateNodeRequest, Operation> createNodeSettings() {
+      return createNodeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createNode. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<CreateNodeRequest, Node, OperationMetadata>
+        createNodeOperationSettings() {
+      return createNodeOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteNode. */
+    public UnaryCallSettings.Builder<DeleteNodeRequest, Operation> deleteNodeSettings() {
+      return deleteNodeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteNode. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<DeleteNodeRequest, Node, OperationMetadata>
+        deleteNodeOperationSettings() {
+      return deleteNodeOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to reimageNode. */
+    public UnaryCallSettings.Builder<ReimageNodeRequest, Operation> reimageNodeSettings() {
+      return reimageNodeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to reimageNode. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<ReimageNodeRequest, Node, OperationMetadata>
+        reimageNodeOperationSettings() {
+      return reimageNodeOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to stopNode. */
+    public UnaryCallSettings.Builder<StopNodeRequest, Operation> stopNodeSettings() {
+      return stopNodeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to stopNode. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<StopNodeRequest, Node, OperationMetadata>
+        stopNodeOperationSettings() {
+      return stopNodeOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to startNode. */
+    public UnaryCallSettings.Builder<StartNodeRequest, Operation> startNodeSettings() {
+      return startNodeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to startNode. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<StartNodeRequest, Node, OperationMetadata>
+        startNodeOperationSettings() {
+      return startNodeOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to listTensorFlowVersions. */
+    public PagedCallSettings.Builder<
+            ListTensorFlowVersionsRequest,
+            ListTensorFlowVersionsResponse,
+            ListTensorFlowVersionsPagedResponse>
+        listTensorFlowVersionsSettings() {
+      return listTensorFlowVersionsSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getTensorFlowVersion. */
+    public UnaryCallSettings.Builder<GetTensorFlowVersionRequest, TensorFlowVersion>
+        getTensorFlowVersionSettings() {
+      return getTensorFlowVersionSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to listAcceleratorTypes. */
+    public PagedCallSettings.Builder<
+            ListAcceleratorTypesRequest,
+            ListAcceleratorTypesResponse,
+            ListAcceleratorTypesPagedResponse>
+        listAcceleratorTypesSettings() {
+      return listAcceleratorTypesSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getAcceleratorType. */
+    public UnaryCallSettings.Builder<GetAcceleratorTypeRequest, AcceleratorType>
+        getAcceleratorTypeSettings() {
+      return getAcceleratorTypeSettings;
+    }
+
+    @Override
+    public TpuStubSettings build() throws IOException {
+      return new TpuStubSettings(this);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v1/MockTpu.java b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v1/MockTpu.java
new file mode 100644
index 000000000000..b20f303457fc
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v1/MockTpu.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+import javax.annotation.Generated;
+
+@BetaApi
+@Generated("by gapic-generator-java")
+public class MockTpu implements MockGrpcService {
+  private final MockTpuImpl serviceImpl;
+
+  public MockTpu() {
+    serviceImpl = new MockTpuImpl();
+  }
+
+  @Override
+  public List<AbstractMessage> getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v1/MockTpuImpl.java b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v1/MockTpuImpl.java
new file mode 100644
index 000000000000..20c9591984ce
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v1/MockTpuImpl.java
@@ -0,0 +1,288 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.tpu.v1.TpuGrpc.TpuImplBase;
+import com.google.longrunning.Operation;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+import javax.annotation.Generated;
+
+@BetaApi
+@Generated("by gapic-generator-java")
+public class MockTpuImpl extends TpuImplBase {
+  private List<AbstractMessage> requests;
+  private Queue<Object> responses;
+
+  public MockTpuImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List<AbstractMessage> getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List<AbstractMessage> responses) {
+    this.responses = new LinkedList<Object>(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void listNodes(
+      ListNodesRequest request, StreamObserver<ListNodesResponse> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof ListNodesResponse) {
+      requests.add(request);
+      responseObserver.onNext(((ListNodesResponse) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method ListNodes, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  ListNodesResponse.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void getNode(GetNodeRequest request, StreamObserver<Node> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Node) {
+      requests.add(request);
+      responseObserver.onNext(((Node) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GetNode, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Node.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void createNode(CreateNodeRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext(((Operation) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method CreateNode, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Operation.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void deleteNode(DeleteNodeRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext(((Operation) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method DeleteNode, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Operation.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void reimageNode(ReimageNodeRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext(((Operation) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method ReimageNode, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Operation.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void stopNode(StopNodeRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext(((Operation) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method StopNode, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Operation.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void startNode(StartNodeRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext(((Operation) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method StartNode, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Operation.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void listTensorFlowVersions(
+      ListTensorFlowVersionsRequest request,
+      StreamObserver<ListTensorFlowVersionsResponse> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof ListTensorFlowVersionsResponse) {
+      requests.add(request);
+      responseObserver.onNext(((ListTensorFlowVersionsResponse) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method ListTensorFlowVersions, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  ListTensorFlowVersionsResponse.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void getTensorFlowVersion(
+      GetTensorFlowVersionRequest request, StreamObserver<TensorFlowVersion> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof TensorFlowVersion) {
+      requests.add(request);
+      responseObserver.onNext(((TensorFlowVersion) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GetTensorFlowVersion, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  TensorFlowVersion.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void listAcceleratorTypes(
+      ListAcceleratorTypesRequest request,
+      StreamObserver<ListAcceleratorTypesResponse> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof ListAcceleratorTypesResponse) {
+      requests.add(request);
+      responseObserver.onNext(((ListAcceleratorTypesResponse) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method ListAcceleratorTypes, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  ListAcceleratorTypesResponse.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void getAcceleratorType(
+      GetAcceleratorTypeRequest request, StreamObserver<AcceleratorType> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof AcceleratorType) {
+      requests.add(request);
+      responseObserver.onNext(((AcceleratorType) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GetAcceleratorType, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  AcceleratorType.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v1/TpuClientTest.java b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v1/TpuClientTest.java
new file mode 100644
index 000000000000..c5ed362951fb
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v1/TpuClientTest.java
@@ -0,0 +1,1083 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1;
+
+import static com.google.cloud.tpu.v1.TpuClient.ListAcceleratorTypesPagedResponse;
+import static com.google.cloud.tpu.v1.TpuClient.ListNodesPagedResponse;
+import static com.google.cloud.tpu.v1.TpuClient.ListTensorFlowVersionsPagedResponse;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.common.collect.Lists;
+import com.google.longrunning.Operation;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Any;
+import com.google.protobuf.Timestamp;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import javax.annotation.Generated;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@Generated("by gapic-generator-java")
+public class TpuClientTest {
+  private static MockServiceHelper mockServiceHelper;
+  private static MockTpu mockTpu;
+  private LocalChannelProvider channelProvider;
+  private TpuClient client;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockTpu = new MockTpu();
+    mockServiceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(), Arrays.<MockGrpcService>asList(mockTpu));
+    mockServiceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    mockServiceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    mockServiceHelper.reset();
+    channelProvider = mockServiceHelper.createChannelProvider();
+    TpuSettings settings =
+        TpuSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = TpuClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  public void listNodesTest() throws Exception {
+    Node responsesElement = Node.newBuilder().build();
+    ListNodesResponse expectedResponse =
+        ListNodesResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllNodes(Arrays.asList(responsesElement))
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+
+    ListNodesPagedResponse pagedListResponse = client.listNodes(parent);
+
+    List<Node> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getNodesList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListNodesRequest actualRequest = ((ListNodesRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent.toString(), actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listNodesExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+      client.listNodes(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void listNodesTest2() throws Exception {
+    Node responsesElement = Node.newBuilder().build();
+    ListNodesResponse expectedResponse =
+        ListNodesResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllNodes(Arrays.asList(responsesElement))
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    String parent = "parent-995424086";
+
+    ListNodesPagedResponse pagedListResponse = client.listNodes(parent);
+
+    List<Node> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getNodesList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListNodesRequest actualRequest = ((ListNodesRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent, actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listNodesExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String parent = "parent-995424086";
+      client.listNodes(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getNodeTest() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setIpAddress("ipAddress1634032845")
+            .setPort("port3446913")
+            .setHealthDescription("healthDescription1231837184")
+            .setTensorflowVersion("tensorflowVersion-470125103")
+            .setNetwork("network1843485230")
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount("serviceAccount1079137720")
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .setUseServiceNetworking(true)
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+
+    Node actualResponse = client.getNode(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetNodeRequest actualRequest = ((GetNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name.toString(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getNodeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+      client.getNode(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getNodeTest2() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setIpAddress("ipAddress1634032845")
+            .setPort("port3446913")
+            .setHealthDescription("healthDescription1231837184")
+            .setTensorflowVersion("tensorflowVersion-470125103")
+            .setNetwork("network1843485230")
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount("serviceAccount1079137720")
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .setUseServiceNetworking(true)
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    String name = "name3373707";
+
+    Node actualResponse = client.getNode(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetNodeRequest actualRequest = ((GetNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name, actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getNodeExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String name = "name3373707";
+      client.getNode(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void createNodeTest() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setIpAddress("ipAddress1634032845")
+            .setPort("port3446913")
+            .setHealthDescription("healthDescription1231837184")
+            .setTensorflowVersion("tensorflowVersion-470125103")
+            .setNetwork("network1843485230")
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount("serviceAccount1079137720")
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .setUseServiceNetworking(true)
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("createNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+    Node node = Node.newBuilder().build();
+    String nodeId = "nodeId-1040171331";
+
+    Node actualResponse = client.createNodeAsync(parent, node, nodeId).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateNodeRequest actualRequest = ((CreateNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent.toString(), actualRequest.getParent());
+    Assert.assertEquals(node, actualRequest.getNode());
+    Assert.assertEquals(nodeId, actualRequest.getNodeId());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void createNodeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+      Node node = Node.newBuilder().build();
+      String nodeId = "nodeId-1040171331";
+      client.createNodeAsync(parent, node, nodeId).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void createNodeTest2() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setIpAddress("ipAddress1634032845")
+            .setPort("port3446913")
+            .setHealthDescription("healthDescription1231837184")
+            .setTensorflowVersion("tensorflowVersion-470125103")
+            .setNetwork("network1843485230")
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount("serviceAccount1079137720")
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .setUseServiceNetworking(true)
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("createNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    String parent = "parent-995424086";
+    Node node = Node.newBuilder().build();
+    String nodeId = "nodeId-1040171331";
+
+    Node actualResponse = client.createNodeAsync(parent, node, nodeId).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateNodeRequest actualRequest = ((CreateNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent, actualRequest.getParent());
+    Assert.assertEquals(node, actualRequest.getNode());
+    Assert.assertEquals(nodeId, actualRequest.getNodeId());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void createNodeExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String parent = "parent-995424086";
+      Node node = Node.newBuilder().build();
+      String nodeId = "nodeId-1040171331";
+      client.createNodeAsync(parent, node, nodeId).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void deleteNodeTest() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setIpAddress("ipAddress1634032845")
+            .setPort("port3446913")
+            .setHealthDescription("healthDescription1231837184")
+            .setTensorflowVersion("tensorflowVersion-470125103")
+            .setNetwork("network1843485230")
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount("serviceAccount1079137720")
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .setUseServiceNetworking(true)
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("deleteNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+
+    Node actualResponse = client.deleteNodeAsync(name).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteNodeRequest actualRequest = ((DeleteNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name.toString(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void deleteNodeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+      client.deleteNodeAsync(name).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void deleteNodeTest2() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setIpAddress("ipAddress1634032845")
+            .setPort("port3446913")
+            .setHealthDescription("healthDescription1231837184")
+            .setTensorflowVersion("tensorflowVersion-470125103")
+            .setNetwork("network1843485230")
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount("serviceAccount1079137720")
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .setUseServiceNetworking(true)
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("deleteNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    String name = "name3373707";
+
+    Node actualResponse = client.deleteNodeAsync(name).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteNodeRequest actualRequest = ((DeleteNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name, actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void deleteNodeExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String name = "name3373707";
+      client.deleteNodeAsync(name).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void reimageNodeTest() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setIpAddress("ipAddress1634032845")
+            .setPort("port3446913")
+            .setHealthDescription("healthDescription1231837184")
+            .setTensorflowVersion("tensorflowVersion-470125103")
+            .setNetwork("network1843485230")
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount("serviceAccount1079137720")
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .setUseServiceNetworking(true)
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("reimageNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    ReimageNodeRequest request =
+        ReimageNodeRequest.newBuilder()
+            .setName("name3373707")
+            .setTensorflowVersion("tensorflowVersion-470125103")
+            .build();
+
+    Node actualResponse = client.reimageNodeAsync(request).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ReimageNodeRequest actualRequest = ((ReimageNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getName(), actualRequest.getName());
+    Assert.assertEquals(request.getTensorflowVersion(), actualRequest.getTensorflowVersion());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void reimageNodeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      ReimageNodeRequest request =
+          ReimageNodeRequest.newBuilder()
+              .setName("name3373707")
+              .setTensorflowVersion("tensorflowVersion-470125103")
+              .build();
+      client.reimageNodeAsync(request).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void stopNodeTest() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setIpAddress("ipAddress1634032845")
+            .setPort("port3446913")
+            .setHealthDescription("healthDescription1231837184")
+            .setTensorflowVersion("tensorflowVersion-470125103")
+            .setNetwork("network1843485230")
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount("serviceAccount1079137720")
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .setUseServiceNetworking(true)
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("stopNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+
+    Node actualResponse = client.stopNodeAsync(request).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    StopNodeRequest actualRequest = ((StopNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getName(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void stopNodeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+      client.stopNodeAsync(request).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void startNodeTest() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setIpAddress("ipAddress1634032845")
+            .setPort("port3446913")
+            .setHealthDescription("healthDescription1231837184")
+            .setTensorflowVersion("tensorflowVersion-470125103")
+            .setNetwork("network1843485230")
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount("serviceAccount1079137720")
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .setUseServiceNetworking(true)
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("startNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+
+    Node actualResponse = client.startNodeAsync(request).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    StartNodeRequest actualRequest = ((StartNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getName(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void startNodeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+      client.startNodeAsync(request).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void listTensorFlowVersionsTest() throws Exception {
+    TensorFlowVersion responsesElement = TensorFlowVersion.newBuilder().build();
+    ListTensorFlowVersionsResponse expectedResponse =
+        ListTensorFlowVersionsResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllTensorflowVersions(Arrays.asList(responsesElement))
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    TensorFlowVersionName parent =
+        TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]");
+
+    ListTensorFlowVersionsPagedResponse pagedListResponse = client.listTensorFlowVersions(parent);
+
+    List<TensorFlowVersion> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getTensorflowVersionsList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListTensorFlowVersionsRequest actualRequest =
+        ((ListTensorFlowVersionsRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent.toString(), actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listTensorFlowVersionsExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      TensorFlowVersionName parent =
+          TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]");
+      client.listTensorFlowVersions(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void listTensorFlowVersionsTest2() throws Exception {
+    TensorFlowVersion responsesElement = TensorFlowVersion.newBuilder().build();
+    ListTensorFlowVersionsResponse expectedResponse =
+        ListTensorFlowVersionsResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllTensorflowVersions(Arrays.asList(responsesElement))
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    String parent = "parent-995424086";
+
+    ListTensorFlowVersionsPagedResponse pagedListResponse = client.listTensorFlowVersions(parent);
+
+    List<TensorFlowVersion> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getTensorflowVersionsList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListTensorFlowVersionsRequest actualRequest =
+        ((ListTensorFlowVersionsRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent, actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listTensorFlowVersionsExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String parent = "parent-995424086";
+      client.listTensorFlowVersions(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getTensorFlowVersionTest() throws Exception {
+    TensorFlowVersion expectedResponse =
+        TensorFlowVersion.newBuilder()
+            .setName(
+                TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]")
+                    .toString())
+            .setVersion("version351608024")
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    TensorFlowVersionName name =
+        TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]");
+
+    TensorFlowVersion actualResponse = client.getTensorFlowVersion(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetTensorFlowVersionRequest actualRequest =
+        ((GetTensorFlowVersionRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name.toString(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getTensorFlowVersionExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      TensorFlowVersionName name =
+          TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]");
+      client.getTensorFlowVersion(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getTensorFlowVersionTest2() throws Exception {
+    TensorFlowVersion expectedResponse =
+        TensorFlowVersion.newBuilder()
+            .setName(
+                TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]")
+                    .toString())
+            .setVersion("version351608024")
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    String name = "name3373707";
+
+    TensorFlowVersion actualResponse = client.getTensorFlowVersion(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetTensorFlowVersionRequest actualRequest =
+        ((GetTensorFlowVersionRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name, actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getTensorFlowVersionExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String name = "name3373707";
+      client.getTensorFlowVersion(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void listAcceleratorTypesTest() throws Exception {
+    AcceleratorType responsesElement = AcceleratorType.newBuilder().build();
+    ListAcceleratorTypesResponse expectedResponse =
+        ListAcceleratorTypesResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllAcceleratorTypes(Arrays.asList(responsesElement))
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    AcceleratorTypeName parent =
+        AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+
+    ListAcceleratorTypesPagedResponse pagedListResponse = client.listAcceleratorTypes(parent);
+
+    List<AcceleratorType> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getAcceleratorTypesList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListAcceleratorTypesRequest actualRequest =
+        ((ListAcceleratorTypesRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent.toString(), actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listAcceleratorTypesExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      AcceleratorTypeName parent =
+          AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+      client.listAcceleratorTypes(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void listAcceleratorTypesTest2() throws Exception {
+    AcceleratorType responsesElement = AcceleratorType.newBuilder().build();
+    ListAcceleratorTypesResponse expectedResponse =
+        ListAcceleratorTypesResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllAcceleratorTypes(Arrays.asList(responsesElement))
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    String parent = "parent-995424086";
+
+    ListAcceleratorTypesPagedResponse pagedListResponse = client.listAcceleratorTypes(parent);
+
+    List<AcceleratorType> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getAcceleratorTypesList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListAcceleratorTypesRequest actualRequest =
+        ((ListAcceleratorTypesRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent, actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listAcceleratorTypesExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String parent = "parent-995424086";
+      client.listAcceleratorTypes(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getAcceleratorTypeTest() throws Exception {
+    AcceleratorType expectedResponse =
+        AcceleratorType.newBuilder()
+            .setName(
+                AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]").toString())
+            .setType("type3575610")
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    AcceleratorTypeName name =
+        AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+
+    AcceleratorType actualResponse = client.getAcceleratorType(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetAcceleratorTypeRequest actualRequest = ((GetAcceleratorTypeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name.toString(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getAcceleratorTypeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      AcceleratorTypeName name =
+          AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+      client.getAcceleratorType(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getAcceleratorTypeTest2() throws Exception {
+    AcceleratorType expectedResponse =
+        AcceleratorType.newBuilder()
+            .setName(
+                AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]").toString())
+            .setType("type3575610")
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    String name = "name3373707";
+
+    AcceleratorType actualResponse = client.getAcceleratorType(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetAcceleratorTypeRequest actualRequest = ((GetAcceleratorTypeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name, actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getAcceleratorTypeExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String name = "name3373707";
+      client.getAcceleratorType(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v1/grpc-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TpuGrpc.java b/owl-bot-staging/java-tpu/v1/grpc-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TpuGrpc.java
new file mode 100644
index 000000000000..93e1da3f39ff
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/grpc-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TpuGrpc.java
@@ -0,0 +1,1168 @@
+package com.google.cloud.tpu.v1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+
+/**
+ * <pre>
+ * Manages TPU nodes and other resources
+ * TPU API v1
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/tpu/v1/cloud_tpu.proto")
+@io.grpc.stub.annotations.GrpcGenerated
+public final class TpuGrpc {
+
+  private TpuGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.tpu.v1.Tpu";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.ListNodesRequest,
+      com.google.cloud.tpu.v1.ListNodesResponse> getListNodesMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListNodes",
+      requestType = com.google.cloud.tpu.v1.ListNodesRequest.class,
+      responseType = com.google.cloud.tpu.v1.ListNodesResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.ListNodesRequest,
+      com.google.cloud.tpu.v1.ListNodesResponse> getListNodesMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.ListNodesRequest, com.google.cloud.tpu.v1.ListNodesResponse> getListNodesMethod;
+    if ((getListNodesMethod = TpuGrpc.getListNodesMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getListNodesMethod = TpuGrpc.getListNodesMethod) == null) {
+          TpuGrpc.getListNodesMethod = getListNodesMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v1.ListNodesRequest, com.google.cloud.tpu.v1.ListNodesResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListNodes"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.ListNodesRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.ListNodesResponse.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("ListNodes"))
+              .build();
+        }
+      }
+    }
+    return getListNodesMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.GetNodeRequest,
+      com.google.cloud.tpu.v1.Node> getGetNodeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetNode",
+      requestType = com.google.cloud.tpu.v1.GetNodeRequest.class,
+      responseType = com.google.cloud.tpu.v1.Node.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.GetNodeRequest,
+      com.google.cloud.tpu.v1.Node> getGetNodeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.GetNodeRequest, com.google.cloud.tpu.v1.Node> getGetNodeMethod;
+    if ((getGetNodeMethod = TpuGrpc.getGetNodeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getGetNodeMethod = TpuGrpc.getGetNodeMethod) == null) {
+          TpuGrpc.getGetNodeMethod = getGetNodeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v1.GetNodeRequest, com.google.cloud.tpu.v1.Node>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetNode"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.GetNodeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.Node.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("GetNode"))
+              .build();
+        }
+      }
+    }
+    return getGetNodeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.CreateNodeRequest,
+      com.google.longrunning.Operation> getCreateNodeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateNode",
+      requestType = com.google.cloud.tpu.v1.CreateNodeRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.CreateNodeRequest,
+      com.google.longrunning.Operation> getCreateNodeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.CreateNodeRequest, com.google.longrunning.Operation> getCreateNodeMethod;
+    if ((getCreateNodeMethod = TpuGrpc.getCreateNodeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getCreateNodeMethod = TpuGrpc.getCreateNodeMethod) == null) {
+          TpuGrpc.getCreateNodeMethod = getCreateNodeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v1.CreateNodeRequest, com.google.longrunning.Operation>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "CreateNode"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.CreateNodeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.longrunning.Operation.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("CreateNode"))
+              .build();
+        }
+      }
+    }
+    return getCreateNodeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.DeleteNodeRequest,
+      com.google.longrunning.Operation> getDeleteNodeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteNode",
+      requestType = com.google.cloud.tpu.v1.DeleteNodeRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.DeleteNodeRequest,
+      com.google.longrunning.Operation> getDeleteNodeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.DeleteNodeRequest, com.google.longrunning.Operation> getDeleteNodeMethod;
+    if ((getDeleteNodeMethod = TpuGrpc.getDeleteNodeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getDeleteNodeMethod = TpuGrpc.getDeleteNodeMethod) == null) {
+          TpuGrpc.getDeleteNodeMethod = getDeleteNodeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v1.DeleteNodeRequest, com.google.longrunning.Operation>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DeleteNode"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.DeleteNodeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.longrunning.Operation.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("DeleteNode"))
+              .build();
+        }
+      }
+    }
+    return getDeleteNodeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.ReimageNodeRequest,
+      com.google.longrunning.Operation> getReimageNodeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ReimageNode",
+      requestType = com.google.cloud.tpu.v1.ReimageNodeRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.ReimageNodeRequest,
+      com.google.longrunning.Operation> getReimageNodeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.ReimageNodeRequest, com.google.longrunning.Operation> getReimageNodeMethod;
+    if ((getReimageNodeMethod = TpuGrpc.getReimageNodeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getReimageNodeMethod = TpuGrpc.getReimageNodeMethod) == null) {
+          TpuGrpc.getReimageNodeMethod = getReimageNodeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v1.ReimageNodeRequest, com.google.longrunning.Operation>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ReimageNode"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.ReimageNodeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.longrunning.Operation.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("ReimageNode"))
+              .build();
+        }
+      }
+    }
+    return getReimageNodeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.StopNodeRequest,
+      com.google.longrunning.Operation> getStopNodeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "StopNode",
+      requestType = com.google.cloud.tpu.v1.StopNodeRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.StopNodeRequest,
+      com.google.longrunning.Operation> getStopNodeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.StopNodeRequest, com.google.longrunning.Operation> getStopNodeMethod;
+    if ((getStopNodeMethod = TpuGrpc.getStopNodeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getStopNodeMethod = TpuGrpc.getStopNodeMethod) == null) {
+          TpuGrpc.getStopNodeMethod = getStopNodeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v1.StopNodeRequest, com.google.longrunning.Operation>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "StopNode"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.StopNodeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.longrunning.Operation.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("StopNode"))
+              .build();
+        }
+      }
+    }
+    return getStopNodeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.StartNodeRequest,
+      com.google.longrunning.Operation> getStartNodeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "StartNode",
+      requestType = com.google.cloud.tpu.v1.StartNodeRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.StartNodeRequest,
+      com.google.longrunning.Operation> getStartNodeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.StartNodeRequest, com.google.longrunning.Operation> getStartNodeMethod;
+    if ((getStartNodeMethod = TpuGrpc.getStartNodeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getStartNodeMethod = TpuGrpc.getStartNodeMethod) == null) {
+          TpuGrpc.getStartNodeMethod = getStartNodeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v1.StartNodeRequest, com.google.longrunning.Operation>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "StartNode"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.StartNodeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.longrunning.Operation.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("StartNode"))
+              .build();
+        }
+      }
+    }
+    return getStartNodeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest,
+      com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse> getListTensorFlowVersionsMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListTensorFlowVersions",
+      requestType = com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest.class,
+      responseType = com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest,
+      com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse> getListTensorFlowVersionsMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest, com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse> getListTensorFlowVersionsMethod;
+    if ((getListTensorFlowVersionsMethod = TpuGrpc.getListTensorFlowVersionsMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getListTensorFlowVersionsMethod = TpuGrpc.getListTensorFlowVersionsMethod) == null) {
+          TpuGrpc.getListTensorFlowVersionsMethod = getListTensorFlowVersionsMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest, com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListTensorFlowVersions"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("ListTensorFlowVersions"))
+              .build();
+        }
+      }
+    }
+    return getListTensorFlowVersionsMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.GetTensorFlowVersionRequest,
+      com.google.cloud.tpu.v1.TensorFlowVersion> getGetTensorFlowVersionMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetTensorFlowVersion",
+      requestType = com.google.cloud.tpu.v1.GetTensorFlowVersionRequest.class,
+      responseType = com.google.cloud.tpu.v1.TensorFlowVersion.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.GetTensorFlowVersionRequest,
+      com.google.cloud.tpu.v1.TensorFlowVersion> getGetTensorFlowVersionMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.GetTensorFlowVersionRequest, com.google.cloud.tpu.v1.TensorFlowVersion> getGetTensorFlowVersionMethod;
+    if ((getGetTensorFlowVersionMethod = TpuGrpc.getGetTensorFlowVersionMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getGetTensorFlowVersionMethod = TpuGrpc.getGetTensorFlowVersionMethod) == null) {
+          TpuGrpc.getGetTensorFlowVersionMethod = getGetTensorFlowVersionMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v1.GetTensorFlowVersionRequest, com.google.cloud.tpu.v1.TensorFlowVersion>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetTensorFlowVersion"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.GetTensorFlowVersionRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.TensorFlowVersion.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("GetTensorFlowVersion"))
+              .build();
+        }
+      }
+    }
+    return getGetTensorFlowVersionMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.ListAcceleratorTypesRequest,
+      com.google.cloud.tpu.v1.ListAcceleratorTypesResponse> getListAcceleratorTypesMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListAcceleratorTypes",
+      requestType = com.google.cloud.tpu.v1.ListAcceleratorTypesRequest.class,
+      responseType = com.google.cloud.tpu.v1.ListAcceleratorTypesResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.ListAcceleratorTypesRequest,
+      com.google.cloud.tpu.v1.ListAcceleratorTypesResponse> getListAcceleratorTypesMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.ListAcceleratorTypesRequest, com.google.cloud.tpu.v1.ListAcceleratorTypesResponse> getListAcceleratorTypesMethod;
+    if ((getListAcceleratorTypesMethod = TpuGrpc.getListAcceleratorTypesMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getListAcceleratorTypesMethod = TpuGrpc.getListAcceleratorTypesMethod) == null) {
+          TpuGrpc.getListAcceleratorTypesMethod = getListAcceleratorTypesMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v1.ListAcceleratorTypesRequest, com.google.cloud.tpu.v1.ListAcceleratorTypesResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListAcceleratorTypes"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.ListAcceleratorTypesRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.ListAcceleratorTypesResponse.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("ListAcceleratorTypes"))
+              .build();
+        }
+      }
+    }
+    return getListAcceleratorTypesMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.GetAcceleratorTypeRequest,
+      com.google.cloud.tpu.v1.AcceleratorType> getGetAcceleratorTypeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetAcceleratorType",
+      requestType = com.google.cloud.tpu.v1.GetAcceleratorTypeRequest.class,
+      responseType = com.google.cloud.tpu.v1.AcceleratorType.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.GetAcceleratorTypeRequest,
+      com.google.cloud.tpu.v1.AcceleratorType> getGetAcceleratorTypeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v1.GetAcceleratorTypeRequest, com.google.cloud.tpu.v1.AcceleratorType> getGetAcceleratorTypeMethod;
+    if ((getGetAcceleratorTypeMethod = TpuGrpc.getGetAcceleratorTypeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getGetAcceleratorTypeMethod = TpuGrpc.getGetAcceleratorTypeMethod) == null) {
+          TpuGrpc.getGetAcceleratorTypeMethod = getGetAcceleratorTypeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v1.GetAcceleratorTypeRequest, com.google.cloud.tpu.v1.AcceleratorType>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetAcceleratorType"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.GetAcceleratorTypeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v1.AcceleratorType.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("GetAcceleratorType"))
+              .build();
+        }
+      }
+    }
+    return getGetAcceleratorTypeMethod;
+  }
+
+  /**
+   * Creates a new async stub that supports all call types for the service
+   */
+  public static TpuStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<TpuStub> factory =
+      new io.grpc.stub.AbstractStub.StubFactory<TpuStub>() {
+        @java.lang.Override
+        public TpuStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+          return new TpuStub(channel, callOptions);
+        }
+      };
+    return TpuStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static TpuBlockingStub newBlockingStub(
+      io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<TpuBlockingStub> factory =
+      new io.grpc.stub.AbstractStub.StubFactory<TpuBlockingStub>() {
+        @java.lang.Override
+        public TpuBlockingStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+          return new TpuBlockingStub(channel, callOptions);
+        }
+      };
+    return TpuBlockingStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new ListenableFuture-style stub that supports unary calls on the service
+   */
+  public static TpuFutureStub newFutureStub(
+      io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<TpuFutureStub> factory =
+      new io.grpc.stub.AbstractStub.StubFactory<TpuFutureStub>() {
+        @java.lang.Override
+        public TpuFutureStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+          return new TpuFutureStub(channel, callOptions);
+        }
+      };
+    return TpuFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   * <pre>
+   * Manages TPU nodes and other resources
+   * TPU API v1
+   * </pre>
+   */
+  public static abstract class TpuImplBase implements io.grpc.BindableService {
+
+    /**
+     * <pre>
+     * Lists nodes.
+     * </pre>
+     */
+    public void listNodes(com.google.cloud.tpu.v1.ListNodesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.ListNodesResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getListNodesMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Gets the details of a node.
+     * </pre>
+     */
+    public void getNode(com.google.cloud.tpu.v1.GetNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.Node> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getGetNodeMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Creates a node.
+     * </pre>
+     */
+    public void createNode(com.google.cloud.tpu.v1.CreateNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getCreateNodeMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Deletes a node.
+     * </pre>
+     */
+    public void deleteNode(com.google.cloud.tpu.v1.DeleteNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getDeleteNodeMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Reimages a node's OS.
+     * </pre>
+     */
+    public void reimageNode(com.google.cloud.tpu.v1.ReimageNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getReimageNodeMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Stops a node.
+     * </pre>
+     */
+    public void stopNode(com.google.cloud.tpu.v1.StopNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getStopNodeMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Starts a node.
+     * </pre>
+     */
+    public void startNode(com.google.cloud.tpu.v1.StartNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getStartNodeMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * List TensorFlow versions supported by this API.
+     * </pre>
+     */
+    public void listTensorFlowVersions(com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getListTensorFlowVersionsMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Gets TensorFlow Version.
+     * </pre>
+     */
+    public void getTensorFlowVersion(com.google.cloud.tpu.v1.GetTensorFlowVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.TensorFlowVersion> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getGetTensorFlowVersionMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Lists accelerator types supported by this API.
+     * </pre>
+     */
+    public void listAcceleratorTypes(com.google.cloud.tpu.v1.ListAcceleratorTypesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.ListAcceleratorTypesResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getListAcceleratorTypesMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Gets AcceleratorType.
+     * </pre>
+     */
+    public void getAcceleratorType(com.google.cloud.tpu.v1.GetAcceleratorTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.AcceleratorType> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getGetAcceleratorTypeMethod(), responseObserver);
+    }
+
+    @java.lang.Override public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+            getListNodesMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v1.ListNodesRequest,
+                com.google.cloud.tpu.v1.ListNodesResponse>(
+                  this, METHODID_LIST_NODES)))
+          .addMethod(
+            getGetNodeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v1.GetNodeRequest,
+                com.google.cloud.tpu.v1.Node>(
+                  this, METHODID_GET_NODE)))
+          .addMethod(
+            getCreateNodeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v1.CreateNodeRequest,
+                com.google.longrunning.Operation>(
+                  this, METHODID_CREATE_NODE)))
+          .addMethod(
+            getDeleteNodeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v1.DeleteNodeRequest,
+                com.google.longrunning.Operation>(
+                  this, METHODID_DELETE_NODE)))
+          .addMethod(
+            getReimageNodeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v1.ReimageNodeRequest,
+                com.google.longrunning.Operation>(
+                  this, METHODID_REIMAGE_NODE)))
+          .addMethod(
+            getStopNodeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v1.StopNodeRequest,
+                com.google.longrunning.Operation>(
+                  this, METHODID_STOP_NODE)))
+          .addMethod(
+            getStartNodeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v1.StartNodeRequest,
+                com.google.longrunning.Operation>(
+                  this, METHODID_START_NODE)))
+          .addMethod(
+            getListTensorFlowVersionsMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest,
+                com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse>(
+                  this, METHODID_LIST_TENSOR_FLOW_VERSIONS)))
+          .addMethod(
+            getGetTensorFlowVersionMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v1.GetTensorFlowVersionRequest,
+                com.google.cloud.tpu.v1.TensorFlowVersion>(
+                  this, METHODID_GET_TENSOR_FLOW_VERSION)))
+          .addMethod(
+            getListAcceleratorTypesMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v1.ListAcceleratorTypesRequest,
+                com.google.cloud.tpu.v1.ListAcceleratorTypesResponse>(
+                  this, METHODID_LIST_ACCELERATOR_TYPES)))
+          .addMethod(
+            getGetAcceleratorTypeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v1.GetAcceleratorTypeRequest,
+                com.google.cloud.tpu.v1.AcceleratorType>(
+                  this, METHODID_GET_ACCELERATOR_TYPE)))
+          .build();
+    }
+  }
+
+  /**
+   * <pre>
+   * Manages TPU nodes and other resources
+   * TPU API v1
+   * </pre>
+   */
+  public static final class TpuStub extends io.grpc.stub.AbstractAsyncStub<TpuStub> {
+    private TpuStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected TpuStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new TpuStub(channel, callOptions);
+    }
+
+    /**
+     * <pre>
+     * Lists nodes.
+     * </pre>
+     */
+    public void listNodes(com.google.cloud.tpu.v1.ListNodesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.ListNodesResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getListNodesMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Gets the details of a node.
+     * </pre>
+     */
+    public void getNode(com.google.cloud.tpu.v1.GetNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.Node> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getGetNodeMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Creates a node.
+     * </pre>
+     */
+    public void createNode(com.google.cloud.tpu.v1.CreateNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getCreateNodeMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Deletes a node.
+     * </pre>
+     */
+    public void deleteNode(com.google.cloud.tpu.v1.DeleteNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getDeleteNodeMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Reimages a node's OS.
+     * </pre>
+     */
+    public void reimageNode(com.google.cloud.tpu.v1.ReimageNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getReimageNodeMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Stops a node.
+     * </pre>
+     */
+    public void stopNode(com.google.cloud.tpu.v1.StopNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getStopNodeMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Starts a node.
+     * </pre>
+     */
+    public void startNode(com.google.cloud.tpu.v1.StartNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getStartNodeMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * List TensorFlow versions supported by this API.
+     * </pre>
+     */
+    public void listTensorFlowVersions(com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getListTensorFlowVersionsMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Gets TensorFlow Version.
+     * </pre>
+     */
+    public void getTensorFlowVersion(com.google.cloud.tpu.v1.GetTensorFlowVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.TensorFlowVersion> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getGetTensorFlowVersionMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Lists accelerator types supported by this API.
+     * </pre>
+     */
+    public void listAcceleratorTypes(com.google.cloud.tpu.v1.ListAcceleratorTypesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.ListAcceleratorTypesResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getListAcceleratorTypesMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Gets AcceleratorType.
+     * </pre>
+     */
+    public void getAcceleratorType(com.google.cloud.tpu.v1.GetAcceleratorTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.AcceleratorType> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getGetAcceleratorTypeMethod(), getCallOptions()), request, responseObserver);
+    }
+  }
+
+  /**
+   * <pre>
+   * Manages TPU nodes and other resources
+   * TPU API v1
+   * </pre>
+   */
+  public static final class TpuBlockingStub extends io.grpc.stub.AbstractBlockingStub<TpuBlockingStub> {
+    private TpuBlockingStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected TpuBlockingStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new TpuBlockingStub(channel, callOptions);
+    }
+
+    /**
+     * <pre>
+     * Lists nodes.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v1.ListNodesResponse listNodes(com.google.cloud.tpu.v1.ListNodesRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getListNodesMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Gets the details of a node.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v1.Node getNode(com.google.cloud.tpu.v1.GetNodeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGetNodeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Creates a node.
+     * </pre>
+     */
+    public com.google.longrunning.Operation createNode(com.google.cloud.tpu.v1.CreateNodeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getCreateNodeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Deletes a node.
+     * </pre>
+     */
+    public com.google.longrunning.Operation deleteNode(com.google.cloud.tpu.v1.DeleteNodeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getDeleteNodeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Reimages a node's OS.
+     * </pre>
+     */
+    public com.google.longrunning.Operation reimageNode(com.google.cloud.tpu.v1.ReimageNodeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getReimageNodeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Stops a node.
+     * </pre>
+     */
+    public com.google.longrunning.Operation stopNode(com.google.cloud.tpu.v1.StopNodeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getStopNodeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Starts a node.
+     * </pre>
+     */
+    public com.google.longrunning.Operation startNode(com.google.cloud.tpu.v1.StartNodeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getStartNodeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * List TensorFlow versions supported by this API.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse listTensorFlowVersions(com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getListTensorFlowVersionsMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Gets TensorFlow Version.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v1.TensorFlowVersion getTensorFlowVersion(com.google.cloud.tpu.v1.GetTensorFlowVersionRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGetTensorFlowVersionMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Lists accelerator types supported by this API.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v1.ListAcceleratorTypesResponse listAcceleratorTypes(com.google.cloud.tpu.v1.ListAcceleratorTypesRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getListAcceleratorTypesMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Gets AcceleratorType.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v1.AcceleratorType getAcceleratorType(com.google.cloud.tpu.v1.GetAcceleratorTypeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGetAcceleratorTypeMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   * <pre>
+   * Manages TPU nodes and other resources
+   * TPU API v1
+   * </pre>
+   */
+  public static final class TpuFutureStub extends io.grpc.stub.AbstractFutureStub<TpuFutureStub> {
+    private TpuFutureStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected TpuFutureStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new TpuFutureStub(channel, callOptions);
+    }
+
+    /**
+     * <pre>
+     * Lists nodes.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v1.ListNodesResponse> listNodes(
+        com.google.cloud.tpu.v1.ListNodesRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getListNodesMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Gets the details of a node.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v1.Node> getNode(
+        com.google.cloud.tpu.v1.GetNodeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getGetNodeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Creates a node.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation> createNode(
+        com.google.cloud.tpu.v1.CreateNodeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getCreateNodeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Deletes a node.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation> deleteNode(
+        com.google.cloud.tpu.v1.DeleteNodeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getDeleteNodeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Reimages a node's OS.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation> reimageNode(
+        com.google.cloud.tpu.v1.ReimageNodeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getReimageNodeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Stops a node.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation> stopNode(
+        com.google.cloud.tpu.v1.StopNodeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getStopNodeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Starts a node.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation> startNode(
+        com.google.cloud.tpu.v1.StartNodeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getStartNodeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * List TensorFlow versions supported by this API.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse> listTensorFlowVersions(
+        com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getListTensorFlowVersionsMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Gets TensorFlow Version.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v1.TensorFlowVersion> getTensorFlowVersion(
+        com.google.cloud.tpu.v1.GetTensorFlowVersionRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getGetTensorFlowVersionMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Lists accelerator types supported by this API.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v1.ListAcceleratorTypesResponse> listAcceleratorTypes(
+        com.google.cloud.tpu.v1.ListAcceleratorTypesRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getListAcceleratorTypesMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Gets AcceleratorType.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v1.AcceleratorType> getAcceleratorType(
+        com.google.cloud.tpu.v1.GetAcceleratorTypeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getGetAcceleratorTypeMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_LIST_NODES = 0;
+  private static final int METHODID_GET_NODE = 1;
+  private static final int METHODID_CREATE_NODE = 2;
+  private static final int METHODID_DELETE_NODE = 3;
+  private static final int METHODID_REIMAGE_NODE = 4;
+  private static final int METHODID_STOP_NODE = 5;
+  private static final int METHODID_START_NODE = 6;
+  private static final int METHODID_LIST_TENSOR_FLOW_VERSIONS = 7;
+  private static final int METHODID_GET_TENSOR_FLOW_VERSION = 8;
+  private static final int METHODID_LIST_ACCELERATOR_TYPES = 9;
+  private static final int METHODID_GET_ACCELERATOR_TYPE = 10;
+
+  private static final class MethodHandlers<Req, Resp> implements
+      io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+      io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+      io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+      io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final TpuImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(TpuImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_LIST_NODES:
+          serviceImpl.listNodes((com.google.cloud.tpu.v1.ListNodesRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.ListNodesResponse>) responseObserver);
+          break;
+        case METHODID_GET_NODE:
+          serviceImpl.getNode((com.google.cloud.tpu.v1.GetNodeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.Node>) responseObserver);
+          break;
+        case METHODID_CREATE_NODE:
+          serviceImpl.createNode((com.google.cloud.tpu.v1.CreateNodeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_DELETE_NODE:
+          serviceImpl.deleteNode((com.google.cloud.tpu.v1.DeleteNodeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_REIMAGE_NODE:
+          serviceImpl.reimageNode((com.google.cloud.tpu.v1.ReimageNodeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_STOP_NODE:
+          serviceImpl.stopNode((com.google.cloud.tpu.v1.StopNodeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_START_NODE:
+          serviceImpl.startNode((com.google.cloud.tpu.v1.StartNodeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_LIST_TENSOR_FLOW_VERSIONS:
+          serviceImpl.listTensorFlowVersions((com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse>) responseObserver);
+          break;
+        case METHODID_GET_TENSOR_FLOW_VERSION:
+          serviceImpl.getTensorFlowVersion((com.google.cloud.tpu.v1.GetTensorFlowVersionRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.TensorFlowVersion>) responseObserver);
+          break;
+        case METHODID_LIST_ACCELERATOR_TYPES:
+          serviceImpl.listAcceleratorTypes((com.google.cloud.tpu.v1.ListAcceleratorTypesRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.ListAcceleratorTypesResponse>) responseObserver);
+          break;
+        case METHODID_GET_ACCELERATOR_TYPE:
+          serviceImpl.getAcceleratorType((com.google.cloud.tpu.v1.GetAcceleratorTypeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v1.AcceleratorType>) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private static abstract class TpuBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier, io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    TpuBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("Tpu");
+    }
+  }
+
+  private static final class TpuFileDescriptorSupplier
+      extends TpuBaseDescriptorSupplier {
+    TpuFileDescriptorSupplier() {}
+  }
+
+  private static final class TpuMethodDescriptorSupplier
+      extends TpuBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    TpuMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (TpuGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor = result = io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+              .setSchemaDescriptor(new TpuFileDescriptorSupplier())
+              .addMethod(getListNodesMethod())
+              .addMethod(getGetNodeMethod())
+              .addMethod(getCreateNodeMethod())
+              .addMethod(getDeleteNodeMethod())
+              .addMethod(getReimageNodeMethod())
+              .addMethod(getStopNodeMethod())
+              .addMethod(getStartNodeMethod())
+              .addMethod(getListTensorFlowVersionsMethod())
+              .addMethod(getGetTensorFlowVersionMethod())
+              .addMethod(getListAcceleratorTypesMethod())
+              .addMethod(getGetAcceleratorTypeMethod())
+              .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorType.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorType.java
new file mode 100644
index 000000000000..0f7e7efa934f
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorType.java
@@ -0,0 +1,761 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * A accelerator type that a Node can be configured with.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.AcceleratorType}
+ */
+public final class AcceleratorType extends
+    com.google.protobuf.GeneratedMessageV3 implements
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+  private AcceleratorType(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
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+  @SuppressWarnings({"unused"})
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+  /**
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+   * the accelerator type.
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+   * <code>string type = 2;</code>
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+  @java.lang.Override
+  public java.lang.String getType() {
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+  /**
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+  @java.lang.Override
+  public int getSerializedSize() {
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+    memoizedSize = size;
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+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v1.AcceleratorType)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v1.AcceleratorType other = (com.google.cloud.tpu.v1.AcceleratorType) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!getType()
+        .equals(other.getType())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
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+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + TYPE_FIELD_NUMBER;
+    hash = (53 * hash) + getType().hashCode();
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+  public static com.google.cloud.tpu.v1.AcceleratorType parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.AcceleratorType parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.AcceleratorType parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.AcceleratorType parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.AcceleratorType parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.AcceleratorType parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.AcceleratorType parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v1.AcceleratorType parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.AcceleratorType parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.AcceleratorType parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.AcceleratorType parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.AcceleratorType parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v1.AcceleratorType prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A accelerator type that a Node can be configured with.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.AcceleratorType}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.AcceleratorType)
+      com.google.cloud.tpu.v1.AcceleratorTypeOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_AcceleratorType_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
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+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v1.AcceleratorType.class, com.google.cloud.tpu.v1.AcceleratorType.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v1.AcceleratorType.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
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+      maybeForceBuilderInitialization();
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+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
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+    @java.lang.Override
+    public Builder clear() {
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+      name_ = "";
+
+      type_ = "";
+
+      return this;
+    }
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+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_AcceleratorType_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.AcceleratorType getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v1.AcceleratorType.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.AcceleratorType build() {
+      com.google.cloud.tpu.v1.AcceleratorType result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.AcceleratorType buildPartial() {
+      com.google.cloud.tpu.v1.AcceleratorType result = new com.google.cloud.tpu.v1.AcceleratorType(this);
+      result.name_ = name_;
+      result.type_ = type_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
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+    public Builder clearOneof(
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+        java.lang.Object value) {
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+      if (other instanceof com.google.cloud.tpu.v1.AcceleratorType) {
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+        super.mergeFrom(other);
+        return this;
+      }
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+    public Builder mergeFrom(com.google.cloud.tpu.v1.AcceleratorType other) {
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+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
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+      if (!other.getType().isEmpty()) {
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+        onChanged();
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
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+
+    @java.lang.Override
+    public final boolean isInitialized() {
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+
+    @java.lang.Override
+    public Builder mergeFrom(
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+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.AcceleratorType parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.AcceleratorType) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
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+          mergeFrom(parsedMessage);
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+      return this;
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+    private java.lang.Object name_ = "";
+    /**
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+     * The resource name.
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+     *
+     * <code>string name = 1;</code>
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+      if (!(ref instanceof java.lang.String)) {
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+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
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+    /**
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+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
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+  
+      name_ = value;
+      onChanged();
+      return this;
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+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
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+      name_ = value;
+      onChanged();
+      return this;
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+
+    private java.lang.Object type_ = "";
+    /**
+     * <pre>
+     * the accelerator type.
+     * </pre>
+     *
+     * <code>string type = 2;</code>
+     * @return The type.
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+    public java.lang.String getType() {
+      java.lang.Object ref = type_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
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+        java.lang.String s = bs.toStringUtf8();
+        type_ = s;
+        return s;
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+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * the accelerator type.
+     * </pre>
+     *
+     * <code>string type = 2;</code>
+     * @return The bytes for type.
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+        type_ = b;
+        return b;
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+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * the accelerator type.
+     * </pre>
+     *
+     * <code>string type = 2;</code>
+     * @param value The type to set.
+     * @return This builder for chaining.
+     */
+    public Builder setType(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      type_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * the accelerator type.
+     * </pre>
+     *
+     * <code>string type = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearType() {
+      
+      type_ = getDefaultInstance().getType();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * the accelerator type.
+     * </pre>
+     *
+     * <code>string type = 2;</code>
+     * @param value The bytes for type to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTypeBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      type_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
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+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.AcceleratorType)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.AcceleratorType)
+  private static final com.google.cloud.tpu.v1.AcceleratorType DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.AcceleratorType();
+  }
+
+  public static com.google.cloud.tpu.v1.AcceleratorType getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<AcceleratorType>
+      PARSER = new com.google.protobuf.AbstractParser<AcceleratorType>() {
+    @java.lang.Override
+    public AcceleratorType parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new AcceleratorType(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<AcceleratorType> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<AcceleratorType> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.AcceleratorType getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorTypeName.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorTypeName.java
new file mode 100644
index 000000000000..fbe1ba56034c
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorTypeName.java
@@ -0,0 +1,227 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+@Generated("by gapic-generator-java")
+public class AcceleratorTypeName implements ResourceName {
+  private static final PathTemplate PROJECT_LOCATION_ACCELERATOR_TYPE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/acceleratorTypes/{accelerator_type}");
+  private volatile Map<String, String> fieldValuesMap;
+  private final String project;
+  private final String location;
+  private final String acceleratorType;
+
+  @Deprecated
+  protected AcceleratorTypeName() {
+    project = null;
+    location = null;
+    acceleratorType = null;
+  }
+
+  private AcceleratorTypeName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    acceleratorType = Preconditions.checkNotNull(builder.getAcceleratorType());
+  }
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getAcceleratorType() {
+    return acceleratorType;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static AcceleratorTypeName of(String project, String location, String acceleratorType) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAcceleratorType(acceleratorType)
+        .build();
+  }
+
+  public static String format(String project, String location, String acceleratorType) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAcceleratorType(acceleratorType)
+        .build()
+        .toString();
+  }
+
+  public static AcceleratorTypeName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PROJECT_LOCATION_ACCELERATOR_TYPE.validatedMatch(
+            formattedString, "AcceleratorTypeName.parse: formattedString not in valid format");
+    return of(matchMap.get("project"), matchMap.get("location"), matchMap.get("accelerator_type"));
+  }
+
+  public static List<AcceleratorTypeName> parseList(List<String> formattedStrings) {
+    List<AcceleratorTypeName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<AcceleratorTypeName> values) {
+    List<String> list = new ArrayList<>(values.size());
+    for (AcceleratorTypeName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT_LOCATION_ACCELERATOR_TYPE.matches(formattedString);
+  }
+
+  @Override
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          if (acceleratorType != null) {
+            fieldMapBuilder.put("accelerator_type", acceleratorType);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PROJECT_LOCATION_ACCELERATOR_TYPE.instantiate(
+        "project", project, "location", location, "accelerator_type", acceleratorType);
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      AcceleratorTypeName that = ((AcceleratorTypeName) o);
+      return Objects.equals(this.project, that.project)
+          && Objects.equals(this.location, that.location)
+          && Objects.equals(this.acceleratorType, that.acceleratorType);
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    h *= 1000003;
+    h ^= Objects.hashCode(acceleratorType);
+    return h;
+  }
+
+  /** Builder for projects/{project}/locations/{location}/acceleratorTypes/{accelerator_type}. */
+  public static class Builder {
+    private String project;
+    private String location;
+    private String acceleratorType;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAcceleratorType() {
+      return acceleratorType;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setAcceleratorType(String acceleratorType) {
+      this.acceleratorType = acceleratorType;
+      return this;
+    }
+
+    private Builder(AcceleratorTypeName acceleratorTypeName) {
+      this.project = acceleratorTypeName.project;
+      this.location = acceleratorTypeName.location;
+      this.acceleratorType = acceleratorTypeName.acceleratorType;
+    }
+
+    public AcceleratorTypeName build() {
+      return new AcceleratorTypeName(this);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorTypeOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorTypeOrBuilder.java
new file mode 100644
index 000000000000..26cc04022f2b
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/AcceleratorTypeOrBuilder.java
@@ -0,0 +1,49 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface AcceleratorTypeOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.AcceleratorType)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+
+  /**
+   * <pre>
+   * the accelerator type.
+   * </pre>
+   *
+   * <code>string type = 2;</code>
+   * @return The type.
+   */
+  java.lang.String getType();
+  /**
+   * <pre>
+   * the accelerator type.
+   * </pre>
+   *
+   * <code>string type = 2;</code>
+   * @return The bytes for type.
+   */
+  com.google.protobuf.ByteString
+      getTypeBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CloudTpuProto.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CloudTpuProto.java
new file mode 100644
index 000000000000..19b329211135
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CloudTpuProto.java
@@ -0,0 +1,454 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public final class CloudTpuProto {
+  private CloudTpuProto() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_SchedulingConfig_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_SchedulingConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_NetworkEndpoint_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_NetworkEndpoint_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_Node_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_Node_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_Node_LabelsEntry_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_Node_LabelsEntry_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_ListNodesRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_ListNodesRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_ListNodesResponse_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_ListNodesResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_GetNodeRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_GetNodeRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_CreateNodeRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_CreateNodeRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_DeleteNodeRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_DeleteNodeRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_ReimageNodeRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_ReimageNodeRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_StopNodeRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_StopNodeRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_StartNodeRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_StartNodeRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_TensorFlowVersion_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_TensorFlowVersion_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_GetTensorFlowVersionRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_GetTensorFlowVersionRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsResponse_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_AcceleratorType_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_AcceleratorType_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_GetAcceleratorTypeRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_GetAcceleratorTypeRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_ListAcceleratorTypesRequest_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_ListAcceleratorTypesRequest_fieldAccessorTable;
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+    internal_static_google_cloud_tpu_v1_ListAcceleratorTypesResponse_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_ListAcceleratorTypesResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_OperationMetadata_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_OperationMetadata_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v1_Symptom_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v1_Symptom_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n#google/cloud/tpu/v1/cloud_tpu.proto\022\023g" +
+      "oogle.cloud.tpu.v1\032\034google/api/annotatio" +
+      "ns.proto\032\027google/api/client.proto\032\037googl" +
+      "e/api/field_behavior.proto\032\031google/api/r" +
+      "esource.proto\032#google/longrunning/operat" +
+      "ions.proto\032\037google/protobuf/timestamp.pr" +
+      "oto\"9\n\020SchedulingConfig\022\023\n\013preemptible\030\001" +
+      " \001(\010\022\020\n\010reserved\030\002 \001(\010\"3\n\017NetworkEndpoin" +
+      "t\022\022\n\nip_address\030\001 \001(\t\022\014\n\004port\030\002 \001(\005\"\264\n\n\004" +
+      "Node\022\024\n\004name\030\001 \001(\tB\006\340A\005\340A\003\022\023\n\013descriptio" +
+      "n\030\003 \001(\t\022\035\n\020accelerator_type\030\005 \001(\tB\003\340A\002\022\026" +
+      "\n\nip_address\030\010 \001(\tB\002\030\001\022\020\n\004port\030\016 \001(\tB\002\030\001" +
+      "\0223\n\005state\030\t \001(\0162\037.google.cloud.tpu.v1.No" +
+      "de.StateB\003\340A\003\022\037\n\022health_description\030\n \001(" +
+      "\tB\003\340A\003\022\037\n\022tensorflow_version\030\013 \001(\tB\003\340A\002\022" +
+      "\017\n\007network\030\014 \001(\t\022\022\n\ncidr_block\030\r \001(\t\022\034\n\017" +
+      "service_account\030\017 \001(\tB\003\340A\003\0224\n\013create_tim" +
+      "e\030\020 \001(\0132\032.google.protobuf.TimestampB\003\340A\003" +
+      "\022@\n\021scheduling_config\030\021 \001(\0132%.google.clo" +
+      "ud.tpu.v1.SchedulingConfig\022D\n\021network_en" +
+      "dpoints\030\025 \003(\0132$.google.cloud.tpu.v1.Netw" +
+      "orkEndpointB\003\340A\003\0220\n\006health\030\026 \001(\0162 .googl" +
+      "e.cloud.tpu.v1.Node.Health\0225\n\006labels\030\030 \003" +
+      "(\0132%.google.cloud.tpu.v1.Node.LabelsEntr" +
+      "y\022\036\n\026use_service_networking\030\033 \001(\010\022>\n\013api" +
+      "_version\030& \001(\0162$.google.cloud.tpu.v1.Nod" +
+      "e.ApiVersionB\003\340A\003\0223\n\010symptoms\030\' \003(\0132\034.go" +
+      "ogle.cloud.tpu.v1.SymptomB\003\340A\003\032-\n\013Labels" +
+      "Entry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"\341\001" +
+      "\n\005State\022\025\n\021STATE_UNSPECIFIED\020\000\022\014\n\010CREATI" +
+      "NG\020\001\022\t\n\005READY\020\002\022\016\n\nRESTARTING\020\003\022\r\n\tREIMA" +
+      "GING\020\004\022\014\n\010DELETING\020\005\022\r\n\tREPAIRING\020\006\022\013\n\007S" +
+      "TOPPED\020\010\022\014\n\010STOPPING\020\t\022\014\n\010STARTING\020\n\022\r\n\t" +
+      "PREEMPTED\020\013\022\016\n\nTERMINATED\020\014\022\n\n\006HIDING\020\r\022" +
+      "\n\n\006HIDDEN\020\016\022\014\n\010UNHIDING\020\017\"\211\001\n\006Health\022\026\n\022" +
+      "HEALTH_UNSPECIFIED\020\000\022\013\n\007HEALTHY\020\001\022\030\n\024DEP" +
+      "RECATED_UNHEALTHY\020\002\022\013\n\007TIMEOUT\020\003\022\030\n\024UNHE" +
+      "ALTHY_TENSORFLOW\020\004\022\031\n\025UNHEALTHY_MAINTENA" +
+      "NCE\020\005\"O\n\nApiVersion\022\033\n\027API_VERSION_UNSPE" +
+      "CIFIED\020\000\022\r\n\tV1_ALPHA1\020\001\022\006\n\002V1\020\002\022\r\n\tV2_AL" +
+      "PHA1\020\003:R\352AO\n\027tpu.googleapis.com/Node\0224pr" +
+      "ojects/{project}/locations/{location}/no" +
+      "des/{node}\"j\n\020ListNodesRequest\022/\n\006parent" +
+      "\030\001 \001(\tB\037\340A\002\372A\031\022\027tpu.googleapis.com/Node\022" +
+      "\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"k" +
+      "\n\021ListNodesResponse\022(\n\005nodes\030\001 \003(\0132\031.goo" +
+      "gle.cloud.tpu.v1.Node\022\027\n\017next_page_token" +
+      "\030\002 \001(\t\022\023\n\013unreachable\030\003 \003(\t\"?\n\016GetNodeRe" +
+      "quest\022-\n\004name\030\001 \001(\tB\037\340A\002\372A\031\n\027tpu.googlea" +
+      "pis.com/Node\"\203\001\n\021CreateNodeRequest\022/\n\006pa" +
+      "rent\030\001 \001(\tB\037\340A\002\372A\031\022\027tpu.googleapis.com/N" +
+      "ode\022\017\n\007node_id\030\002 \001(\t\022,\n\004node\030\003 \001(\0132\031.goo" +
+      "gle.cloud.tpu.v1.NodeB\003\340A\002\"B\n\021DeleteNode" +
+      "Request\022-\n\004name\030\001 \001(\tB\037\340A\002\372A\031\n\027tpu.googl" +
+      "eapis.com/Node\">\n\022ReimageNodeRequest\022\014\n\004" +
+      "name\030\001 \001(\t\022\032\n\022tensorflow_version\030\002 \001(\t\"\037" +
+      "\n\017StopNodeRequest\022\014\n\004name\030\001 \001(\t\" \n\020Start" +
+      "NodeRequest\022\014\n\004name\030\001 \001(\t\"\257\001\n\021TensorFlow" +
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+      "estamp\022,\n\010end_time\030\002 \001(\0132\032.google.protob" +
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+      "ptom\022/\n\013create_time\030\001 \001(\0132\032.google.proto" +
+      "buf.Timestamp\022>\n\014symptom_type\030\002 \001(\0162(.go" +
+      "ogle.cloud.tpu.v1.Symptom.SymptomType\022\017\n" +
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+      "\016\n\nLOW_MEMORY\020\001\022\021\n\rOUT_OF_MEMORY\020\002\022\025\n\021EX" +
+      "ECUTE_TIMED_OUT\020\003\022\023\n\017MESH_BUILD_FAIL\020\004\022\025" +
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+      "nt=projects/*/locations/*}/nodes\332A\006paren" +
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+      "odeRequest\032\031.google.cloud.tpu.v1.Node\"8\202" +
+      "\323\344\223\002+\022)/v1/{name=projects/*/locations/*/" +
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+      "cloud.tpu.v1.CreateNodeRequest\032\035.google." +
+      "longrunning.Operation\"i\202\323\344\223\0021\")/v1/{pare" +
+      "nt=projects/*/locations/*}/nodes:\004node\332A" +
+      "\023parent,node,node_id\312A\031\n\004Node\022\021Operation" +
+      "Metadata\022\251\001\n\nDeleteNode\022&.google.cloud.t" +
+      "pu.v1.DeleteNodeRequest\032\035.google.longrun" +
+      "ning.Operation\"T\202\323\344\223\002+*)/v1/{name=projec" +
+      "ts/*/locations/*/nodes/*}\332A\004name\312A\031\n\004Nod" +
+      "e\022\021OperationMetadata\022\257\001\n\013ReimageNode\022\'.g" +
+      "oogle.cloud.tpu.v1.ReimageNodeRequest\032\035." +
+      "google.longrunning.Operation\"X\202\323\344\223\0026\"1/v" +
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+      "\001\n\010StopNode\022$.google.cloud.tpu.v1.StopNo" +
+      "deRequest\032\035.google.longrunning.Operation" +
+      "\"U\202\323\344\223\0023\"./v1/{name=projects/*/locations" +
+      "/*/nodes/*}:stop:\001*\312A\031\n\004Node\022\021OperationM" +
+      "etadata\022\251\001\n\tStartNode\022%.google.cloud.tpu" +
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+      "g.Operation\"V\202\323\344\223\0024\"//v1/{name=projects/" +
+      "*/locations/*/nodes/*}:start:\001*\312A\031\n\004Node" +
+      "\022\021OperationMetadata\022\312\001\n\026ListTensorFlowVe" +
+      "rsions\0222.google.cloud.tpu.v1.ListTensorF" +
+      "lowVersionsRequest\0323.google.cloud.tpu.v1" +
+      ".ListTensorFlowVersionsResponse\"G\202\323\344\223\0028\022" +
+      "6/v1/{parent=projects/*/locations/*}/ten" +
+      "sorflowVersions\332A\006parent\022\267\001\n\024GetTensorFl" +
+      "owVersion\0220.google.cloud.tpu.v1.GetTenso" +
+      "rFlowVersionRequest\032&.google.cloud.tpu.v" +
+      "1.TensorFlowVersion\"E\202\323\344\223\0028\0226/v1/{name=p" +
+      "rojects/*/locations/*/tensorflowVersions" +
+      "/*}\332A\004name\022\302\001\n\024ListAcceleratorTypes\0220.go" +
+      "ogle.cloud.tpu.v1.ListAcceleratorTypesRe" +
+      "quest\0321.google.cloud.tpu.v1.ListAccelera" +
+      "torTypesResponse\"E\202\323\344\223\0026\0224/v1/{parent=pr" +
+      "ojects/*/locations/*}/acceleratorTypes\332A" +
+      "\006parent\022\257\001\n\022GetAcceleratorType\022..google." +
+      "cloud.tpu.v1.GetAcceleratorTypeRequest\032$" +
+      ".google.cloud.tpu.v1.AcceleratorType\"C\202\323" +
+      "\344\223\0026\0224/v1/{name=projects/*/locations/*/a" +
+      "cceleratorTypes/*}\332A\004name\032F\312A\022tpu.google" +
+      "apis.com\322A.https://www.googleapis.com/au" +
+      "th/cloud-platformBb\n\027com.google.cloud.tp" +
+      "u.v1B\rCloudTpuProtoP\001Z6google.golang.org" +
+      "/genproto/googleapis/cloud/tpu/v1;tpub\006p" +
+      "roto3"
+    };
+    descriptor = com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+          com.google.api.AnnotationsProto.getDescriptor(),
+          com.google.api.ClientProto.getDescriptor(),
+          com.google.api.FieldBehaviorProto.getDescriptor(),
+          com.google.api.ResourceProto.getDescriptor(),
+          com.google.longrunning.OperationsProto.getDescriptor(),
+          com.google.protobuf.TimestampProto.getDescriptor(),
+        });
+    internal_static_google_cloud_tpu_v1_SchedulingConfig_descriptor =
+      getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_tpu_v1_SchedulingConfig_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_SchedulingConfig_descriptor,
+        new java.lang.String[] { "Preemptible", "Reserved", });
+    internal_static_google_cloud_tpu_v1_NetworkEndpoint_descriptor =
+      getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_tpu_v1_NetworkEndpoint_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_NetworkEndpoint_descriptor,
+        new java.lang.String[] { "IpAddress", "Port", });
+    internal_static_google_cloud_tpu_v1_Node_descriptor =
+      getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_tpu_v1_Node_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_Node_descriptor,
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+    internal_static_google_cloud_tpu_v1_Node_LabelsEntry_descriptor =
+      internal_static_google_cloud_tpu_v1_Node_descriptor.getNestedTypes().get(0);
+    internal_static_google_cloud_tpu_v1_Node_LabelsEntry_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_Node_LabelsEntry_descriptor,
+        new java.lang.String[] { "Key", "Value", });
+    internal_static_google_cloud_tpu_v1_ListNodesRequest_descriptor =
+      getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_tpu_v1_ListNodesRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_ListNodesRequest_descriptor,
+        new java.lang.String[] { "Parent", "PageSize", "PageToken", });
+    internal_static_google_cloud_tpu_v1_ListNodesResponse_descriptor =
+      getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_tpu_v1_ListNodesResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_ListNodesResponse_descriptor,
+        new java.lang.String[] { "Nodes", "NextPageToken", "Unreachable", });
+    internal_static_google_cloud_tpu_v1_GetNodeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_tpu_v1_GetNodeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_GetNodeRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_google_cloud_tpu_v1_CreateNodeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_tpu_v1_CreateNodeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_CreateNodeRequest_descriptor,
+        new java.lang.String[] { "Parent", "NodeId", "Node", });
+    internal_static_google_cloud_tpu_v1_DeleteNodeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(7);
+    internal_static_google_cloud_tpu_v1_DeleteNodeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_DeleteNodeRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_google_cloud_tpu_v1_ReimageNodeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(8);
+    internal_static_google_cloud_tpu_v1_ReimageNodeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_ReimageNodeRequest_descriptor,
+        new java.lang.String[] { "Name", "TensorflowVersion", });
+    internal_static_google_cloud_tpu_v1_StopNodeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(9);
+    internal_static_google_cloud_tpu_v1_StopNodeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_StopNodeRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_google_cloud_tpu_v1_StartNodeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(10);
+    internal_static_google_cloud_tpu_v1_StartNodeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_StartNodeRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_google_cloud_tpu_v1_TensorFlowVersion_descriptor =
+      getDescriptor().getMessageTypes().get(11);
+    internal_static_google_cloud_tpu_v1_TensorFlowVersion_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_TensorFlowVersion_descriptor,
+        new java.lang.String[] { "Name", "Version", });
+    internal_static_google_cloud_tpu_v1_GetTensorFlowVersionRequest_descriptor =
+      getDescriptor().getMessageTypes().get(12);
+    internal_static_google_cloud_tpu_v1_GetTensorFlowVersionRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_GetTensorFlowVersionRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsRequest_descriptor =
+      getDescriptor().getMessageTypes().get(13);
+    internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsRequest_descriptor,
+        new java.lang.String[] { "Parent", "PageSize", "PageToken", "Filter", "OrderBy", });
+    internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsResponse_descriptor =
+      getDescriptor().getMessageTypes().get(14);
+    internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsResponse_descriptor,
+        new java.lang.String[] { "TensorflowVersions", "NextPageToken", "Unreachable", });
+    internal_static_google_cloud_tpu_v1_AcceleratorType_descriptor =
+      getDescriptor().getMessageTypes().get(15);
+    internal_static_google_cloud_tpu_v1_AcceleratorType_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_AcceleratorType_descriptor,
+        new java.lang.String[] { "Name", "Type", });
+    internal_static_google_cloud_tpu_v1_GetAcceleratorTypeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(16);
+    internal_static_google_cloud_tpu_v1_GetAcceleratorTypeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_GetAcceleratorTypeRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_google_cloud_tpu_v1_ListAcceleratorTypesRequest_descriptor =
+      getDescriptor().getMessageTypes().get(17);
+    internal_static_google_cloud_tpu_v1_ListAcceleratorTypesRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_ListAcceleratorTypesRequest_descriptor,
+        new java.lang.String[] { "Parent", "PageSize", "PageToken", "Filter", "OrderBy", });
+    internal_static_google_cloud_tpu_v1_ListAcceleratorTypesResponse_descriptor =
+      getDescriptor().getMessageTypes().get(18);
+    internal_static_google_cloud_tpu_v1_ListAcceleratorTypesResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_ListAcceleratorTypesResponse_descriptor,
+        new java.lang.String[] { "AcceleratorTypes", "NextPageToken", "Unreachable", });
+    internal_static_google_cloud_tpu_v1_OperationMetadata_descriptor =
+      getDescriptor().getMessageTypes().get(19);
+    internal_static_google_cloud_tpu_v1_OperationMetadata_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_OperationMetadata_descriptor,
+        new java.lang.String[] { "CreateTime", "EndTime", "Target", "Verb", "StatusDetail", "CancelRequested", "ApiVersion", });
+    internal_static_google_cloud_tpu_v1_Symptom_descriptor =
+      getDescriptor().getMessageTypes().get(20);
+    internal_static_google_cloud_tpu_v1_Symptom_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v1_Symptom_descriptor,
+        new java.lang.String[] { "CreateTime", "SymptomType", "Details", "WorkerId", });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    registry.add(com.google.longrunning.OperationsProto.operationInfo);
+    com.google.protobuf.Descriptors.FileDescriptor
+        .internalUpdateFileDescriptor(descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.longrunning.OperationsProto.getDescriptor();
+    com.google.protobuf.TimestampProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequest.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequest.java
new file mode 100644
index 000000000000..d0ee6c9b6967
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequest.java
@@ -0,0 +1,997 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Request for [CreateNode][google.cloud.tpu.v1.Tpu.CreateNode].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.CreateNodeRequest}
+ */
+public final class CreateNodeRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.CreateNodeRequest)
+    CreateNodeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use CreateNodeRequest.newBuilder() to construct.
+  private CreateNodeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private CreateNodeRequest() {
+    parent_ = "";
+    nodeId_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new CreateNodeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private CreateNodeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            parent_ = s;
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            nodeId_ = s;
+            break;
+          }
+          case 26: {
+            com.google.cloud.tpu.v1.Node.Builder subBuilder = null;
+            if (node_ != null) {
+              subBuilder = node_.toBuilder();
+            }
+            node_ = input.readMessage(com.google.cloud.tpu.v1.Node.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(node_);
+              node_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_CreateNodeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_CreateNodeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v1.CreateNodeRequest.class, com.google.cloud.tpu.v1.CreateNodeRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
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+  public java.lang.String getParent() {
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+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
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+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for parent to set.
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+     * <pre>
+     * The unqualified resource name.
+     * </pre>
+     *
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+        com.google.protobuf.ByteString b = 
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+        nodeId_ = b;
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+     * <pre>
+     * The unqualified resource name.
+     * </pre>
+     *
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+     * @param value The nodeId to set.
+     * @return This builder for chaining.
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+      nodeId_ = value;
+      onChanged();
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+     *
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+      nodeId_ = getDefaultInstance().getNodeId();
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+     *
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+     * @return Whether the node field is set.
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+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder setNode(com.google.cloud.tpu.v1.Node value) {
+      if (nodeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        node_ = value;
+        onChanged();
+      } else {
+        nodeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder setNode(
+        com.google.cloud.tpu.v1.Node.Builder builderForValue) {
+      if (nodeBuilder_ == null) {
+        node_ = builderForValue.build();
+        onChanged();
+      } else {
+        nodeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder mergeNode(com.google.cloud.tpu.v1.Node value) {
+      if (nodeBuilder_ == null) {
+        if (node_ != null) {
+          node_ =
+            com.google.cloud.tpu.v1.Node.newBuilder(node_).mergeFrom(value).buildPartial();
+        } else {
+          node_ = value;
+        }
+        onChanged();
+      } else {
+        nodeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder clearNode() {
+      if (nodeBuilder_ == null) {
+        node_ = null;
+        onChanged();
+      } else {
+        node_ = null;
+        nodeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public com.google.cloud.tpu.v1.Node.Builder getNodeBuilder() {
+      
+      onChanged();
+      return getNodeFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public com.google.cloud.tpu.v1.NodeOrBuilder getNodeOrBuilder() {
+      if (nodeBuilder_ != null) {
+        return nodeBuilder_.getMessageOrBuilder();
+      } else {
+        return node_ == null ?
+            com.google.cloud.tpu.v1.Node.getDefaultInstance() : node_;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v1.Node, com.google.cloud.tpu.v1.Node.Builder, com.google.cloud.tpu.v1.NodeOrBuilder> 
+        getNodeFieldBuilder() {
+      if (nodeBuilder_ == null) {
+        nodeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.tpu.v1.Node, com.google.cloud.tpu.v1.Node.Builder, com.google.cloud.tpu.v1.NodeOrBuilder>(
+                getNode(),
+                getParentForChildren(),
+                isClean());
+        node_ = null;
+      }
+      return nodeBuilder_;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.CreateNodeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.CreateNodeRequest)
+  private static final com.google.cloud.tpu.v1.CreateNodeRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.CreateNodeRequest();
+  }
+
+  public static com.google.cloud.tpu.v1.CreateNodeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<CreateNodeRequest>
+      PARSER = new com.google.protobuf.AbstractParser<CreateNodeRequest>() {
+    @java.lang.Override
+    public CreateNodeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new CreateNodeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<CreateNodeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<CreateNodeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.CreateNodeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequestOrBuilder.java
new file mode 100644
index 000000000000..caad16ada543
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/CreateNodeRequestOrBuilder.java
@@ -0,0 +1,76 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface CreateNodeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.CreateNodeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString
+      getParentBytes();
+
+  /**
+   * <pre>
+   * The unqualified resource name.
+   * </pre>
+   *
+   * <code>string node_id = 2;</code>
+   * @return The nodeId.
+   */
+  java.lang.String getNodeId();
+  /**
+   * <pre>
+   * The unqualified resource name.
+   * </pre>
+   *
+   * <code>string node_id = 2;</code>
+   * @return The bytes for nodeId.
+   */
+  com.google.protobuf.ByteString
+      getNodeIdBytes();
+
+  /**
+   * <pre>
+   * Required. The node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return Whether the node field is set.
+   */
+  boolean hasNode();
+  /**
+   * <pre>
+   * Required. The node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The node.
+   */
+  com.google.cloud.tpu.v1.Node getNode();
+  /**
+   * <pre>
+   * Required. The node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+   */
+  com.google.cloud.tpu.v1.NodeOrBuilder getNodeOrBuilder();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequest.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequest.java
new file mode 100644
index 000000000000..1e0f4c39db83
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequest.java
@@ -0,0 +1,595 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Request for [DeleteNode][google.cloud.tpu.v1.Tpu.DeleteNode].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.DeleteNodeRequest}
+ */
+public final class DeleteNodeRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.DeleteNodeRequest)
+    DeleteNodeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use DeleteNodeRequest.newBuilder() to construct.
+  private DeleteNodeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private DeleteNodeRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new DeleteNodeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private DeleteNodeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_DeleteNodeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_DeleteNodeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v1.DeleteNodeRequest.class, com.google.cloud.tpu.v1.DeleteNodeRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v1.DeleteNodeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v1.DeleteNodeRequest other = (com.google.cloud.tpu.v1.DeleteNodeRequest) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v1.DeleteNodeRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.DeleteNodeRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.DeleteNodeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.DeleteNodeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.DeleteNodeRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.DeleteNodeRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.DeleteNodeRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.DeleteNodeRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.DeleteNodeRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.DeleteNodeRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.DeleteNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.DeleteNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v1.DeleteNodeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for [DeleteNode][google.cloud.tpu.v1.Tpu.DeleteNode].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.DeleteNodeRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.DeleteNodeRequest)
+      com.google.cloud.tpu.v1.DeleteNodeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_DeleteNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_DeleteNodeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v1.DeleteNodeRequest.class, com.google.cloud.tpu.v1.DeleteNodeRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v1.DeleteNodeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_DeleteNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.DeleteNodeRequest getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v1.DeleteNodeRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.DeleteNodeRequest build() {
+      com.google.cloud.tpu.v1.DeleteNodeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.DeleteNodeRequest buildPartial() {
+      com.google.cloud.tpu.v1.DeleteNodeRequest result = new com.google.cloud.tpu.v1.DeleteNodeRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v1.DeleteNodeRequest) {
+        return mergeFrom((com.google.cloud.tpu.v1.DeleteNodeRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v1.DeleteNodeRequest other) {
+      if (other == com.google.cloud.tpu.v1.DeleteNodeRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.DeleteNodeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.DeleteNodeRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.DeleteNodeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.DeleteNodeRequest)
+  private static final com.google.cloud.tpu.v1.DeleteNodeRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.DeleteNodeRequest();
+  }
+
+  public static com.google.cloud.tpu.v1.DeleteNodeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DeleteNodeRequest>
+      PARSER = new com.google.protobuf.AbstractParser<DeleteNodeRequest>() {
+    @java.lang.Override
+    public DeleteNodeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new DeleteNodeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<DeleteNodeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DeleteNodeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.DeleteNodeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequestOrBuilder.java
new file mode 100644
index 000000000000..4d7d791c980d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/DeleteNodeRequestOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface DeleteNodeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.DeleteNodeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequest.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequest.java
new file mode 100644
index 000000000000..bffe196689ce
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequest.java
@@ -0,0 +1,595 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Request for [GetAcceleratorType][google.cloud.tpu.v1.Tpu.GetAcceleratorType].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.GetAcceleratorTypeRequest}
+ */
+public final class GetAcceleratorTypeRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.GetAcceleratorTypeRequest)
+    GetAcceleratorTypeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GetAcceleratorTypeRequest.newBuilder() to construct.
+  private GetAcceleratorTypeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GetAcceleratorTypeRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GetAcceleratorTypeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GetAcceleratorTypeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
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+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
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+          case 10: {
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+
+            name_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_GetAcceleratorTypeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  @java.lang.Override
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+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
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+  @java.lang.Override
+  public int hashCode() {
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
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+      throws com.google.protobuf.InvalidProtocolBufferException {
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+  public static com.google.cloud.tpu.v1.GetAcceleratorTypeRequest parseFrom(
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+    return PARSER.parseFrom(data, extensionRegistry);
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+  public static com.google.cloud.tpu.v1.GetAcceleratorTypeRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.GetAcceleratorTypeRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+  public static com.google.cloud.tpu.v1.GetAcceleratorTypeRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.GetAcceleratorTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.GetAcceleratorTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v1.GetAcceleratorTypeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
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+  /**
+   * <pre>
+   * Request for [GetAcceleratorType][google.cloud.tpu.v1.Tpu.GetAcceleratorType].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.GetAcceleratorTypeRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.GetAcceleratorTypeRequest)
+      com.google.cloud.tpu.v1.GetAcceleratorTypeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_GetAcceleratorTypeRequest_descriptor;
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+
+    // Construct using com.google.cloud.tpu.v1.GetAcceleratorTypeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
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+    private Builder(
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+      return this;
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+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_GetAcceleratorTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.GetAcceleratorTypeRequest getDefaultInstanceForType() {
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+    public com.google.cloud.tpu.v1.GetAcceleratorTypeRequest build() {
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+      onBuilt();
+      return result;
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+    @java.lang.Override
+    public Builder clone() {
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+    @java.lang.Override
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+    public Builder addRepeatedField(
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+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v1.GetAcceleratorTypeRequest) {
+        return mergeFrom((com.google.cloud.tpu.v1.GetAcceleratorTypeRequest)other);
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+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v1.GetAcceleratorTypeRequest other) {
+      if (other == com.google.cloud.tpu.v1.GetAcceleratorTypeRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.GetAcceleratorTypeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.GetAcceleratorTypeRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
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+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
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+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
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+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.GetAcceleratorTypeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.GetAcceleratorTypeRequest)
+  private static final com.google.cloud.tpu.v1.GetAcceleratorTypeRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.GetAcceleratorTypeRequest();
+  }
+
+  public static com.google.cloud.tpu.v1.GetAcceleratorTypeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetAcceleratorTypeRequest>
+      PARSER = new com.google.protobuf.AbstractParser<GetAcceleratorTypeRequest>() {
+    @java.lang.Override
+    public GetAcceleratorTypeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GetAcceleratorTypeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GetAcceleratorTypeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetAcceleratorTypeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.GetAcceleratorTypeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequestOrBuilder.java
new file mode 100644
index 000000000000..38110e7d35ab
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetAcceleratorTypeRequestOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface GetAcceleratorTypeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.GetAcceleratorTypeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequest.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequest.java
new file mode 100644
index 000000000000..612fc8a97f5f
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequest.java
@@ -0,0 +1,595 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Request for [GetNode][google.cloud.tpu.v1.Tpu.GetNode].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.GetNodeRequest}
+ */
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+    com.google.protobuf.GeneratedMessageV3 implements
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+    GetNodeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GetNodeRequest.newBuilder() to construct.
+  private GetNodeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
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+  }
+
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+    return PARSER.parseFrom(data);
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+  public static com.google.cloud.tpu.v1.GetNodeRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+    return com.google.protobuf.GeneratedMessageV3
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+        .parseWithIOException(PARSER, input);
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+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
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+  public static Builder newBuilder(com.google.cloud.tpu.v1.GetNodeRequest prototype) {
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+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
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+
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+   * Request for [GetNode][google.cloud.tpu.v1.Tpu.GetNode].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.GetNodeRequest}
+   */
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+      com.google.cloud.tpu.v1.GetNodeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
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+      com.google.cloud.tpu.v1.GetNodeRequest parsedMessage = null;
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+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.GetNodeRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
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+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
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+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
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+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
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+
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+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.GetNodeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.GetNodeRequest)
+  private static final com.google.cloud.tpu.v1.GetNodeRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.GetNodeRequest();
+  }
+
+  public static com.google.cloud.tpu.v1.GetNodeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetNodeRequest>
+      PARSER = new com.google.protobuf.AbstractParser<GetNodeRequest>() {
+    @java.lang.Override
+    public GetNodeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GetNodeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GetNodeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetNodeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.GetNodeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequestOrBuilder.java
new file mode 100644
index 000000000000..1e1c45faf8c2
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetNodeRequestOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface GetNodeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.GetNodeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequest.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequest.java
new file mode 100644
index 000000000000..4aa307e3d0c3
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequest.java
@@ -0,0 +1,595 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Request for [GetTensorFlowVersion][google.cloud.tpu.v1.Tpu.GetTensorFlowVersion].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.GetTensorFlowVersionRequest}
+ */
+public final class GetTensorFlowVersionRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.GetTensorFlowVersionRequest)
+    GetTensorFlowVersionRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GetTensorFlowVersionRequest.newBuilder() to construct.
+  private GetTensorFlowVersionRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GetTensorFlowVersionRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GetTensorFlowVersionRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GetTensorFlowVersionRequest(
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
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+      throw new com.google.protobuf.InvalidProtocolBufferException(
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+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
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+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
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+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_GetTensorFlowVersionRequest_descriptor;
+  }
+
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+   * @return The name.
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.GetTensorFlowVersionRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+    return com.google.protobuf.GeneratedMessageV3
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v1.GetTensorFlowVersionRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
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+  /**
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+   * Request for [GetTensorFlowVersion][google.cloud.tpu.v1.Tpu.GetTensorFlowVersion].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.GetTensorFlowVersionRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
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+      com.google.cloud.tpu.v1.GetTensorFlowVersionRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_GetTensorFlowVersionRequest_descriptor;
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+        getDescriptorForType() {
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+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.GetTensorFlowVersionRequest getDefaultInstanceForType() {
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+    public Builder mergeFrom(com.google.cloud.tpu.v1.GetTensorFlowVersionRequest other) {
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+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.GetTensorFlowVersionRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.GetTensorFlowVersionRequest)
+  private static final com.google.cloud.tpu.v1.GetTensorFlowVersionRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.GetTensorFlowVersionRequest();
+  }
+
+  public static com.google.cloud.tpu.v1.GetTensorFlowVersionRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetTensorFlowVersionRequest>
+      PARSER = new com.google.protobuf.AbstractParser<GetTensorFlowVersionRequest>() {
+    @java.lang.Override
+    public GetTensorFlowVersionRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GetTensorFlowVersionRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GetTensorFlowVersionRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetTensorFlowVersionRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.GetTensorFlowVersionRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequestOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequestOrBuilder.java
new file mode 100644
index 000000000000..8be72b5bb0a8
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/GetTensorFlowVersionRequestOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface GetTensorFlowVersionRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.GetTensorFlowVersionRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequest.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequest.java
new file mode 100644
index 000000000000..07c93e9e70f1
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequest.java
@@ -0,0 +1,1173 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Request for [ListAcceleratorTypes][google.cloud.tpu.v1.Tpu.ListAcceleratorTypes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.ListAcceleratorTypesRequest}
+ */
+public final class ListAcceleratorTypesRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.ListAcceleratorTypesRequest)
+    ListAcceleratorTypesRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ListAcceleratorTypesRequest.newBuilder() to construct.
+  private ListAcceleratorTypesRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ListAcceleratorTypesRequest() {
+    parent_ = "";
+    pageToken_ = "";
+    filter_ = "";
+    orderBy_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ListAcceleratorTypesRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ListAcceleratorTypesRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            parent_ = s;
+            break;
+          }
+          case 16: {
+
+            pageSize_ = input.readInt32();
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            pageToken_ = s;
+            break;
+          }
+          case 42: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            filter_ = s;
+            break;
+          }
+          case 50: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            orderBy_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListAcceleratorTypesRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListAcceleratorTypesRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v1.ListAcceleratorTypesRequest.class, com.google.cloud.tpu.v1.ListAcceleratorTypesRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
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+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
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+      parent_ = b;
+      return b;
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+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 2;
+  private int pageSize_;
+  /**
+   * <pre>
+   * The maximum number of items to return.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
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+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
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+  }
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The bytes for pageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getPageTokenBytes() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      pageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int FILTER_FIELD_NUMBER = 5;
+  private volatile java.lang.Object filter_;
+  /**
+   * <pre>
+   * List filter.
+   * </pre>
+   *
+   * <code>string filter = 5;</code>
+   * @return The filter.
+   */
+  @java.lang.Override
+  public java.lang.String getFilter() {
+    java.lang.Object ref = filter_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      filter_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * List filter.
+   * </pre>
+   *
+   * <code>string filter = 5;</code>
+   * @return The bytes for filter.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getFilterBytes() {
+    java.lang.Object ref = filter_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      filter_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ORDER_BY_FIELD_NUMBER = 6;
+  private volatile java.lang.Object orderBy_;
+  /**
+   * <pre>
+   * Sort results.
+   * </pre>
+   *
+   * <code>string order_by = 6;</code>
+   * @return The orderBy.
+   */
+  @java.lang.Override
+  public java.lang.String getOrderBy() {
+    java.lang.Object ref = orderBy_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      orderBy_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Sort results.
+   * </pre>
+   *
+   * <code>string order_by = 6;</code>
+   * @return The bytes for orderBy.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getOrderByBytes() {
+    java.lang.Object ref = orderBy_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      orderBy_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
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+  }
+
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+  @java.lang.Override
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+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
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+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
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+    if (pageSize_ != 0) {
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+      com.google.protobuf.GeneratedMessageV3.writeString(output, 5, filter_);
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+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(orderBy_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 6, orderBy_);
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+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
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+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
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+    if (!(obj instanceof com.google.cloud.tpu.v1.ListAcceleratorTypesRequest)) {
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+    if (!getParent()
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+    if (getPageSize()
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+    if (!getPageToken()
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+  @java.lang.Override
+  public int hashCode() {
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+    return PARSER.parseFrom(data);
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+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
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+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+  public Builder newBuilderForType() { return newBuilder(); }
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+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
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+  /**
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+   * Request for [ListAcceleratorTypes][google.cloud.tpu.v1.Tpu.ListAcceleratorTypes].
+   * </pre>
+   *
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+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.ListAcceleratorTypesRequest)
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+      pageSize_ = 0;
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+      pageToken_ = "";
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+      filter_ = "";
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+    @java.lang.Override
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+      if (other instanceof com.google.cloud.tpu.v1.ListAcceleratorTypesRequest) {
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+        super.mergeFrom(other);
+        return this;
+      }
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+
+    public Builder mergeFrom(com.google.cloud.tpu.v1.ListAcceleratorTypesRequest other) {
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+      if (!other.getParent().isEmpty()) {
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+        onChanged();
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+      if (other.getPageSize() != 0) {
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+      if (!other.getOrderBy().isEmpty()) {
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
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+
+    @java.lang.Override
+    public final boolean isInitialized() {
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+    @java.lang.Override
+    public Builder mergeFrom(
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+        parsedMessage = (com.google.cloud.tpu.v1.ListAcceleratorTypesRequest) e.getUnfinishedMessage();
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+          mergeFrom(parsedMessage);
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+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The parent.
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+    public java.lang.String getParent() {
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+        parent_ = s;
+        return s;
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+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for parent.
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+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+      
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
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+  checkByteStringIsUtf8(value);
+      
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_ ;
+    /**
+     * <pre>
+     * The maximum number of items to return.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     * <pre>
+     * The maximum number of items to return.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+      
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The maximum number of items to return.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+      
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
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+        com.google.protobuf.ByteString bs =
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+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
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+        return (java.lang.String) ref;
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+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString
+        getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
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+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+      
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      pageToken_ = value;
+      onChanged();
+      return this;
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+
+    private java.lang.Object filter_ = "";
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @return The filter.
+     */
+    public java.lang.String getFilter() {
+      java.lang.Object ref = filter_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
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+        java.lang.String s = bs.toStringUtf8();
+        filter_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @return The bytes for filter.
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+        getFilterBytes() {
+      java.lang.Object ref = filter_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
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+        filter_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @param value The filter to set.
+     * @return This builder for chaining.
+     */
+    public Builder setFilter(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      filter_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearFilter() {
+      
+      filter_ = getDefaultInstance().getFilter();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @param value The bytes for filter to set.
+     * @return This builder for chaining.
+     */
+    public Builder setFilterBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      filter_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object orderBy_ = "";
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @return The orderBy.
+     */
+    public java.lang.String getOrderBy() {
+      java.lang.Object ref = orderBy_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        orderBy_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @return The bytes for orderBy.
+     */
+    public com.google.protobuf.ByteString
+        getOrderByBytes() {
+      java.lang.Object ref = orderBy_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        orderBy_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @param value The orderBy to set.
+     * @return This builder for chaining.
+     */
+    public Builder setOrderBy(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      orderBy_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearOrderBy() {
+      
+      orderBy_ = getDefaultInstance().getOrderBy();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @param value The bytes for orderBy to set.
+     * @return This builder for chaining.
+     */
+    public Builder setOrderByBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      orderBy_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.ListAcceleratorTypesRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.ListAcceleratorTypesRequest)
+  private static final com.google.cloud.tpu.v1.ListAcceleratorTypesRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.ListAcceleratorTypesRequest();
+  }
+
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListAcceleratorTypesRequest>
+      PARSER = new com.google.protobuf.AbstractParser<ListAcceleratorTypesRequest>() {
+    @java.lang.Override
+    public ListAcceleratorTypesRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ListAcceleratorTypesRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ListAcceleratorTypesRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListAcceleratorTypesRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.ListAcceleratorTypesRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequestOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequestOrBuilder.java
new file mode 100644
index 000000000000..9901af4af3f7
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequestOrBuilder.java
@@ -0,0 +1,99 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface ListAcceleratorTypesRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.ListAcceleratorTypesRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString
+      getParentBytes();
+
+  /**
+   * <pre>
+   * The maximum number of items to return.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString
+      getPageTokenBytes();
+
+  /**
+   * <pre>
+   * List filter.
+   * </pre>
+   *
+   * <code>string filter = 5;</code>
+   * @return The filter.
+   */
+  java.lang.String getFilter();
+  /**
+   * <pre>
+   * List filter.
+   * </pre>
+   *
+   * <code>string filter = 5;</code>
+   * @return The bytes for filter.
+   */
+  com.google.protobuf.ByteString
+      getFilterBytes();
+
+  /**
+   * <pre>
+   * Sort results.
+   * </pre>
+   *
+   * <code>string order_by = 6;</code>
+   * @return The orderBy.
+   */
+  java.lang.String getOrderBy();
+  /**
+   * <pre>
+   * Sort results.
+   * </pre>
+   *
+   * <code>string order_by = 6;</code>
+   * @return The bytes for orderBy.
+   */
+  com.google.protobuf.ByteString
+      getOrderByBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponse.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponse.java
new file mode 100644
index 000000000000..2965ca7dcc62
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponse.java
@@ -0,0 +1,1282 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Response for [ListAcceleratorTypes][google.cloud.tpu.v1.Tpu.ListAcceleratorTypes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.ListAcceleratorTypesResponse}
+ */
+public final class ListAcceleratorTypesResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.ListAcceleratorTypesResponse)
+    ListAcceleratorTypesResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ListAcceleratorTypesResponse.newBuilder() to construct.
+  private ListAcceleratorTypesResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ListAcceleratorTypesResponse() {
+    acceleratorTypes_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+    unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ListAcceleratorTypesResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ListAcceleratorTypesResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+              acceleratorTypes_ = new java.util.ArrayList<com.google.cloud.tpu.v1.AcceleratorType>();
+              mutable_bitField0_ |= 0x00000001;
+            }
+            acceleratorTypes_.add(
+                input.readMessage(com.google.cloud.tpu.v1.AcceleratorType.parser(), extensionRegistry));
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            nextPageToken_ = s;
+            break;
+          }
+          case 26: {
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+            if (!((mutable_bitField0_ & 0x00000002) != 0)) {
+              unreachable_ = new com.google.protobuf.LazyStringArrayList();
+              mutable_bitField0_ |= 0x00000002;
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+            unreachable_.add(s);
+            break;
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+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
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+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
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+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        acceleratorTypes_ = java.util.Collections.unmodifiableList(acceleratorTypes_);
+      }
+      if (((mutable_bitField0_ & 0x00000002) != 0)) {
+        unreachable_ = unreachable_.getUnmodifiableView();
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListAcceleratorTypesResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListAcceleratorTypesResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v1.ListAcceleratorTypesResponse.class, com.google.cloud.tpu.v1.ListAcceleratorTypesResponse.Builder.class);
+  }
+
+  public static final int ACCELERATOR_TYPES_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.tpu.v1.AcceleratorType> acceleratorTypes_;
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.tpu.v1.AcceleratorType> getAcceleratorTypesList() {
+    return acceleratorTypes_;
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.tpu.v1.AcceleratorTypeOrBuilder> 
+      getAcceleratorTypesOrBuilderList() {
+    return acceleratorTypes_;
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+   */
+  @java.lang.Override
+  public int getAcceleratorTypesCount() {
+    return acceleratorTypes_.size();
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.AcceleratorType getAcceleratorTypes(int index) {
+    return acceleratorTypes_.get(index);
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.AcceleratorTypeOrBuilder getAcceleratorTypesOrBuilder(
+      int index) {
+    return acceleratorTypes_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
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+  public java.lang.String getNextPageToken() {
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+      nextPageToken_ = b;
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+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return A list containing the unreachable.
+   */
+  public com.google.protobuf.ProtocolStringList
+      getUnreachableList() {
+    return unreachable_;
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+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return The count of unreachable.
+   */
+  public int getUnreachableCount() {
+    return unreachable_.size();
+  }
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the element to return.
+   * @return The unreachable at the given index.
+   */
+  public java.lang.String getUnreachable(int index) {
+    return unreachable_.get(index);
+  }
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the value to return.
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+      getUnreachableBytes(int index) {
+    return unreachable_.getByteString(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    for (int i = 0; i < acceleratorTypes_.size(); i++) {
+      output.writeMessage(1, acceleratorTypes_.get(i));
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
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+    for (int i = 0; i < unreachable_.size(); i++) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, unreachable_.getRaw(i));
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+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < acceleratorTypes_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(1, acceleratorTypes_.get(i));
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
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+    }
+    {
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+      for (int i = 0; i < unreachable_.size(); i++) {
+        dataSize += computeStringSizeNoTag(unreachable_.getRaw(i));
+      }
+      size += dataSize;
+      size += 1 * getUnreachableList().size();
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v1.ListAcceleratorTypesResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v1.ListAcceleratorTypesResponse other = (com.google.cloud.tpu.v1.ListAcceleratorTypesResponse) obj;
+
+    if (!getAcceleratorTypesList()
+        .equals(other.getAcceleratorTypesList())) return false;
+    if (!getNextPageToken()
+        .equals(other.getNextPageToken())) return false;
+    if (!getUnreachableList()
+        .equals(other.getUnreachableList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getAcceleratorTypesCount() > 0) {
+      hash = (37 * hash) + ACCELERATOR_TYPES_FIELD_NUMBER;
+      hash = (53 * hash) + getAcceleratorTypesList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    if (getUnreachableCount() > 0) {
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+      hash = (53 * hash) + getUnreachableList().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v1.ListAcceleratorTypesResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Response for [ListAcceleratorTypes][google.cloud.tpu.v1.Tpu.ListAcceleratorTypes].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.ListAcceleratorTypesResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.ListAcceleratorTypesResponse)
+      com.google.cloud.tpu.v1.ListAcceleratorTypesResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListAcceleratorTypesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListAcceleratorTypesResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v1.ListAcceleratorTypesResponse.class, com.google.cloud.tpu.v1.ListAcceleratorTypesResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v1.ListAcceleratorTypesResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+        getAcceleratorTypesFieldBuilder();
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (acceleratorTypesBuilder_ == null) {
+        acceleratorTypes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
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+      }
+      nextPageToken_ = "";
+
+      unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000002);
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListAcceleratorTypesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.ListAcceleratorTypesResponse getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v1.ListAcceleratorTypesResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.ListAcceleratorTypesResponse build() {
+      com.google.cloud.tpu.v1.ListAcceleratorTypesResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.ListAcceleratorTypesResponse buildPartial() {
+      com.google.cloud.tpu.v1.ListAcceleratorTypesResponse result = new com.google.cloud.tpu.v1.ListAcceleratorTypesResponse(this);
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+      result.unreachable_ = unreachable_;
+      onBuilt();
+      return result;
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+    @java.lang.Override
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+    @java.lang.Override
+    public Builder setField(
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+        java.lang.Object value) {
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+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
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+    @java.lang.Override
+    public Builder clearOneof(
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+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v1.ListAcceleratorTypesResponse) {
+        return mergeFrom((com.google.cloud.tpu.v1.ListAcceleratorTypesResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v1.ListAcceleratorTypesResponse other) {
+      if (other == com.google.cloud.tpu.v1.ListAcceleratorTypesResponse.getDefaultInstance()) return this;
+      if (acceleratorTypesBuilder_ == null) {
+        if (!other.acceleratorTypes_.isEmpty()) {
+          if (acceleratorTypes_.isEmpty()) {
+            acceleratorTypes_ = other.acceleratorTypes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureAcceleratorTypesIsMutable();
+            acceleratorTypes_.addAll(other.acceleratorTypes_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.acceleratorTypes_.isEmpty()) {
+          if (acceleratorTypesBuilder_.isEmpty()) {
+            acceleratorTypesBuilder_.dispose();
+            acceleratorTypesBuilder_ = null;
+            acceleratorTypes_ = other.acceleratorTypes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            acceleratorTypesBuilder_ = 
+              com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
+                 getAcceleratorTypesFieldBuilder() : null;
+          } else {
+            acceleratorTypesBuilder_.addAllMessages(other.acceleratorTypes_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      if (!other.unreachable_.isEmpty()) {
+        if (unreachable_.isEmpty()) {
+          unreachable_ = other.unreachable_;
+          bitField0_ = (bitField0_ & ~0x00000002);
+        } else {
+          ensureUnreachableIsMutable();
+          unreachable_.addAll(other.unreachable_);
+        }
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.ListAcceleratorTypesResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.ListAcceleratorTypesResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.tpu.v1.AcceleratorType> acceleratorTypes_ =
+      java.util.Collections.emptyList();
+    private void ensureAcceleratorTypesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        acceleratorTypes_ = new java.util.ArrayList<com.google.cloud.tpu.v1.AcceleratorType>(acceleratorTypes_);
+        bitField0_ |= 0x00000001;
+       }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v1.AcceleratorType, com.google.cloud.tpu.v1.AcceleratorType.Builder, com.google.cloud.tpu.v1.AcceleratorTypeOrBuilder> acceleratorTypesBuilder_;
+
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v1.AcceleratorType> getAcceleratorTypesList() {
+      if (acceleratorTypesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(acceleratorTypes_);
+      } else {
+        return acceleratorTypesBuilder_.getMessageList();
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public int getAcceleratorTypesCount() {
+      if (acceleratorTypesBuilder_ == null) {
+        return acceleratorTypes_.size();
+      } else {
+        return acceleratorTypesBuilder_.getCount();
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.AcceleratorType getAcceleratorTypes(int index) {
+      if (acceleratorTypesBuilder_ == null) {
+        return acceleratorTypes_.get(index);
+      } else {
+        return acceleratorTypesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder setAcceleratorTypes(
+        int index, com.google.cloud.tpu.v1.AcceleratorType value) {
+      if (acceleratorTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.set(index, value);
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder setAcceleratorTypes(
+        int index, com.google.cloud.tpu.v1.AcceleratorType.Builder builderForValue) {
+      if (acceleratorTypesBuilder_ == null) {
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder addAcceleratorTypes(com.google.cloud.tpu.v1.AcceleratorType value) {
+      if (acceleratorTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.add(value);
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder addAcceleratorTypes(
+        int index, com.google.cloud.tpu.v1.AcceleratorType value) {
+      if (acceleratorTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.add(index, value);
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder addAcceleratorTypes(
+        com.google.cloud.tpu.v1.AcceleratorType.Builder builderForValue) {
+      if (acceleratorTypesBuilder_ == null) {
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.add(builderForValue.build());
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder addAcceleratorTypes(
+        int index, com.google.cloud.tpu.v1.AcceleratorType.Builder builderForValue) {
+      if (acceleratorTypesBuilder_ == null) {
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder addAllAcceleratorTypes(
+        java.lang.Iterable<? extends com.google.cloud.tpu.v1.AcceleratorType> values) {
+      if (acceleratorTypesBuilder_ == null) {
+        ensureAcceleratorTypesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, acceleratorTypes_);
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder clearAcceleratorTypes() {
+      if (acceleratorTypesBuilder_ == null) {
+        acceleratorTypes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder removeAcceleratorTypes(int index) {
+      if (acceleratorTypesBuilder_ == null) {
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.remove(index);
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.AcceleratorType.Builder getAcceleratorTypesBuilder(
+        int index) {
+      return getAcceleratorTypesFieldBuilder().getBuilder(index);
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.AcceleratorTypeOrBuilder getAcceleratorTypesOrBuilder(
+        int index) {
+      if (acceleratorTypesBuilder_ == null) {
+        return acceleratorTypes_.get(index);  } else {
+        return acceleratorTypesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.tpu.v1.AcceleratorTypeOrBuilder> 
+         getAcceleratorTypesOrBuilderList() {
+      if (acceleratorTypesBuilder_ != null) {
+        return acceleratorTypesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(acceleratorTypes_);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.AcceleratorType.Builder addAcceleratorTypesBuilder() {
+      return getAcceleratorTypesFieldBuilder().addBuilder(
+          com.google.cloud.tpu.v1.AcceleratorType.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.AcceleratorType.Builder addAcceleratorTypesBuilder(
+        int index) {
+      return getAcceleratorTypesFieldBuilder().addBuilder(
+          index, com.google.cloud.tpu.v1.AcceleratorType.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v1.AcceleratorType.Builder> 
+         getAcceleratorTypesBuilderList() {
+      return getAcceleratorTypesFieldBuilder().getBuilderList();
+    }
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v1.AcceleratorType, com.google.cloud.tpu.v1.AcceleratorType.Builder, com.google.cloud.tpu.v1.AcceleratorTypeOrBuilder> 
+        getAcceleratorTypesFieldBuilder() {
+      if (acceleratorTypesBuilder_ == null) {
+        acceleratorTypesBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.tpu.v1.AcceleratorType, com.google.cloud.tpu.v1.AcceleratorType.Builder, com.google.cloud.tpu.v1.AcceleratorTypeOrBuilder>(
+                acceleratorTypes_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        acceleratorTypes_ = null;
+      }
+      return acceleratorTypesBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString
+        getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+      
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.LazyStringList unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+    private void ensureUnreachableIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        unreachable_ = new com.google.protobuf.LazyStringArrayList(unreachable_);
+        bitField0_ |= 0x00000002;
+       }
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return A list containing the unreachable.
+     */
+    public com.google.protobuf.ProtocolStringList
+        getUnreachableList() {
+      return unreachable_.getUnmodifiableView();
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return The count of unreachable.
+     */
+    public int getUnreachableCount() {
+      return unreachable_.size();
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index of the element to return.
+     * @return The unreachable at the given index.
+     */
+    public java.lang.String getUnreachable(int index) {
+      return unreachable_.get(index);
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index of the value to return.
+     * @return The bytes of the unreachable at the given index.
+     */
+    public com.google.protobuf.ByteString
+        getUnreachableBytes(int index) {
+      return unreachable_.getByteString(index);
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index to set the value at.
+     * @param value The unreachable to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUnreachable(
+        int index, java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureUnreachableIsMutable();
+      unreachable_.set(index, value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param value The unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addUnreachable(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureUnreachableIsMutable();
+      unreachable_.add(value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param values The unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllUnreachable(
+        java.lang.Iterable<java.lang.String> values) {
+      ensureUnreachableIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(
+          values, unreachable_);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearUnreachable() {
+      unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000002);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param value The bytes of the unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addUnreachableBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      ensureUnreachableIsMutable();
+      unreachable_.add(value);
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.ListAcceleratorTypesResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.ListAcceleratorTypesResponse)
+  private static final com.google.cloud.tpu.v1.ListAcceleratorTypesResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.ListAcceleratorTypesResponse();
+  }
+
+  public static com.google.cloud.tpu.v1.ListAcceleratorTypesResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListAcceleratorTypesResponse>
+      PARSER = new com.google.protobuf.AbstractParser<ListAcceleratorTypesResponse>() {
+    @java.lang.Override
+    public ListAcceleratorTypesResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ListAcceleratorTypesResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ListAcceleratorTypesResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListAcceleratorTypesResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.ListAcceleratorTypesResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponseOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponseOrBuilder.java
new file mode 100644
index 000000000000..ee4a968d747b
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesResponseOrBuilder.java
@@ -0,0 +1,114 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface ListAcceleratorTypesResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.ListAcceleratorTypesResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+   */
+  java.util.List<com.google.cloud.tpu.v1.AcceleratorType> 
+      getAcceleratorTypesList();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+   */
+  com.google.cloud.tpu.v1.AcceleratorType getAcceleratorTypes(int index);
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+   */
+  int getAcceleratorTypesCount();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.tpu.v1.AcceleratorTypeOrBuilder> 
+      getAcceleratorTypesOrBuilderList();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.AcceleratorType accelerator_types = 1;</code>
+   */
+  com.google.cloud.tpu.v1.AcceleratorTypeOrBuilder getAcceleratorTypesOrBuilder(
+      int index);
+
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString
+      getNextPageTokenBytes();
+
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return A list containing the unreachable.
+   */
+  java.util.List<java.lang.String>
+      getUnreachableList();
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return The count of unreachable.
+   */
+  int getUnreachableCount();
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the element to return.
+   * @return The unreachable at the given index.
+   */
+  java.lang.String getUnreachable(int index);
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
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+  com.google.protobuf.ByteString
+      getUnreachableBytes(int index);
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequest.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequest.java
new file mode 100644
index 000000000000..6e5f22511335
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequest.java
@@ -0,0 +1,841 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Request for [ListNodes][google.cloud.tpu.v1.Tpu.ListNodes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.ListNodesRequest}
+ */
+public final class ListNodesRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
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+    ListNodesRequestOrBuilder {
+private static final long serialVersionUID = 0L;
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+      makeExtensionsImmutable();
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+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.ListNodesRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.ListNodesRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString
+        getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        parent_ = b;
+        return b;
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+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+      
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_ ;
+    /**
+     * <pre>
+     * The maximum number of items to return.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     * @return The pageSize.
+     */
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+      return pageSize_;
+    }
+    /**
+     * <pre>
+     * The maximum number of items to return.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+      
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The maximum number of items to return.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+      
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString
+        getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+      
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.ListNodesRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.ListNodesRequest)
+  private static final com.google.cloud.tpu.v1.ListNodesRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.ListNodesRequest();
+  }
+
+  public static com.google.cloud.tpu.v1.ListNodesRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListNodesRequest>
+      PARSER = new com.google.protobuf.AbstractParser<ListNodesRequest>() {
+    @java.lang.Override
+    public ListNodesRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ListNodesRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ListNodesRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListNodesRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.ListNodesRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequestOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequestOrBuilder.java
new file mode 100644
index 000000000000..78168640de9e
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesRequestOrBuilder.java
@@ -0,0 +1,59 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface ListNodesRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.ListNodesRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString
+      getParentBytes();
+
+  /**
+   * <pre>
+   * The maximum number of items to return.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString
+      getPageTokenBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponse.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponse.java
new file mode 100644
index 000000000000..65680157ce17
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponse.java
@@ -0,0 +1,1282 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Response for [ListNodes][google.cloud.tpu.v1.Tpu.ListNodes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.ListNodesResponse}
+ */
+public final class ListNodesResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.ListNodesResponse)
+    ListNodesResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ListNodesResponse.newBuilder() to construct.
+  private ListNodesResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ListNodesResponse() {
+    nodes_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+    unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ListNodesResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ListNodesResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
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+    try {
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+        switch (tag) {
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+            break;
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+              mutable_bitField0_ |= 0x00000001;
+            }
+            nodes_.add(
+                input.readMessage(com.google.cloud.tpu.v1.Node.parser(), extensionRegistry));
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            nextPageToken_ = s;
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
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+              mutable_bitField0_ |= 0x00000002;
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+            unreachable_.add(s);
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
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+            break;
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+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
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+      throw new com.google.protobuf.InvalidProtocolBufferException(
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+      if (((mutable_bitField0_ & 0x00000002) != 0)) {
+        unreachable_ = unreachable_.getUnmodifiableView();
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+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListNodesResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
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+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v1.ListNodesResponse.class, com.google.cloud.tpu.v1.ListNodesResponse.Builder.class);
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+
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+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+   */
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+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
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+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.tpu.v1.NodeOrBuilder> 
+      getNodesOrBuilderList() {
+    return nodes_;
+  }
+  /**
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+   * The listed nodes.
+   * </pre>
+   *
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+  public int getNodesCount() {
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+  /**
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+   *
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+  @java.lang.Override
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+   * </pre>
+   *
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+  @java.lang.Override
+  public com.google.cloud.tpu.v1.NodeOrBuilder getNodesOrBuilder(
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+    return nodes_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
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+  /**
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+   * The next page token or empty if none.
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+  public java.lang.String getNextPageToken() {
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+      nextPageToken_ = s;
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+  public com.google.protobuf.ByteString
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+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return The count of unreachable.
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+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the element to return.
+   * @return The unreachable at the given index.
+   */
+  public java.lang.String getUnreachable(int index) {
+    return unreachable_.get(index);
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+  /**
+   * <pre>
+   * Locations that could not be reached.
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+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the value to return.
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+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
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+  @java.lang.Override
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+                      throws java.io.IOException {
+    for (int i = 0; i < nodes_.size(); i++) {
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+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
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+    for (int i = 0; i < unreachable_.size(); i++) {
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+    unknownFields.writeTo(output);
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+  @java.lang.Override
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+    if (size != -1) return size;
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+    size = 0;
+    for (int i = 0; i < nodes_.size(); i++) {
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+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
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+      size += dataSize;
+      size += 1 * getUnreachableList().size();
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+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
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+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v1.ListNodesResponse)) {
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+  public static com.google.cloud.tpu.v1.ListNodesResponse parseFrom(
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+    return PARSER.parseFrom(data, extensionRegistry);
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
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+      throws java.io.IOException {
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+        .parseWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v1.ListNodesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
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+  public static Builder newBuilder(com.google.cloud.tpu.v1.ListNodesResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
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+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
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+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
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+  /**
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+   * Response for [ListNodes][google.cloud.tpu.v1.Tpu.ListNodes].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.ListNodesResponse}
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+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.ListNodesResponse)
+      com.google.cloud.tpu.v1.ListNodesResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListNodesResponse_descriptor;
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+    private Builder() {
+      maybeForceBuilderInitialization();
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+    private Builder(
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+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.ListNodesResponse getDefaultInstanceForType() {
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+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.ListNodesResponse build() {
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+      if (!result.isInitialized()) {
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+      return result;
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+    @java.lang.Override
+    public com.google.cloud.tpu.v1.ListNodesResponse buildPartial() {
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+      if (other instanceof com.google.cloud.tpu.v1.ListNodesResponse) {
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+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v1.ListNodesResponse other) {
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+      return this;
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+
+    @java.lang.Override
+    public final boolean isInitialized() {
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+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.ListNodesResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.ListNodesResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
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+      return this;
+    }
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.tpu.v1.Node> nodes_ =
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+
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
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+      if (nodesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(nodes_);
+      } else {
+        return nodesBuilder_.getMessageList();
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
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+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.Node getNodes(int index) {
+      if (nodesBuilder_ == null) {
+        return nodes_.get(index);
+      } else {
+        return nodesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public Builder setNodes(
+        int index, com.google.cloud.tpu.v1.Node value) {
+      if (nodesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureNodesIsMutable();
+        nodes_.set(index, value);
+        onChanged();
+      } else {
+        nodesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public Builder setNodes(
+        int index, com.google.cloud.tpu.v1.Node.Builder builderForValue) {
+      if (nodesBuilder_ == null) {
+        ensureNodesIsMutable();
+        nodes_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        nodesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public Builder addNodes(com.google.cloud.tpu.v1.Node value) {
+      if (nodesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureNodesIsMutable();
+        nodes_.add(value);
+        onChanged();
+      } else {
+        nodesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public Builder addNodes(
+        int index, com.google.cloud.tpu.v1.Node value) {
+      if (nodesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureNodesIsMutable();
+        nodes_.add(index, value);
+        onChanged();
+      } else {
+        nodesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public Builder addNodes(
+        com.google.cloud.tpu.v1.Node.Builder builderForValue) {
+      if (nodesBuilder_ == null) {
+        ensureNodesIsMutable();
+        nodes_.add(builderForValue.build());
+        onChanged();
+      } else {
+        nodesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public Builder addNodes(
+        int index, com.google.cloud.tpu.v1.Node.Builder builderForValue) {
+      if (nodesBuilder_ == null) {
+        ensureNodesIsMutable();
+        nodes_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        nodesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public Builder addAllNodes(
+        java.lang.Iterable<? extends com.google.cloud.tpu.v1.Node> values) {
+      if (nodesBuilder_ == null) {
+        ensureNodesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, nodes_);
+        onChanged();
+      } else {
+        nodesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public Builder clearNodes() {
+      if (nodesBuilder_ == null) {
+        nodes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        nodesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public Builder removeNodes(int index) {
+      if (nodesBuilder_ == null) {
+        ensureNodesIsMutable();
+        nodes_.remove(index);
+        onChanged();
+      } else {
+        nodesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.Node.Builder getNodesBuilder(
+        int index) {
+      return getNodesFieldBuilder().getBuilder(index);
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.NodeOrBuilder getNodesOrBuilder(
+        int index) {
+      if (nodesBuilder_ == null) {
+        return nodes_.get(index);  } else {
+        return nodesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.tpu.v1.NodeOrBuilder> 
+         getNodesOrBuilderList() {
+      if (nodesBuilder_ != null) {
+        return nodesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(nodes_);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.Node.Builder addNodesBuilder() {
+      return getNodesFieldBuilder().addBuilder(
+          com.google.cloud.tpu.v1.Node.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.Node.Builder addNodesBuilder(
+        int index) {
+      return getNodesFieldBuilder().addBuilder(
+          index, com.google.cloud.tpu.v1.Node.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v1.Node.Builder> 
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+    }
+    private com.google.protobuf.RepeatedFieldBuilderV3<
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+                isClean());
+        nodes_ = null;
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+      return nodesBuilder_;
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+    /**
+     * <pre>
+     * The next page token or empty if none.
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+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+      
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.LazyStringList unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+    private void ensureUnreachableIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        unreachable_ = new com.google.protobuf.LazyStringArrayList(unreachable_);
+        bitField0_ |= 0x00000002;
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+    /**
+     * <pre>
+     * Locations that could not be reached.
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+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return A list containing the unreachable.
+     */
+    public com.google.protobuf.ProtocolStringList
+        getUnreachableList() {
+      return unreachable_.getUnmodifiableView();
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+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return The count of unreachable.
+     */
+    public int getUnreachableCount() {
+      return unreachable_.size();
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index of the element to return.
+     * @return The unreachable at the given index.
+     */
+    public java.lang.String getUnreachable(int index) {
+      return unreachable_.get(index);
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index of the value to return.
+     * @return The bytes of the unreachable at the given index.
+     */
+    public com.google.protobuf.ByteString
+        getUnreachableBytes(int index) {
+      return unreachable_.getByteString(index);
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index to set the value at.
+     * @param value The unreachable to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUnreachable(
+        int index, java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureUnreachableIsMutable();
+      unreachable_.set(index, value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param value The unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addUnreachable(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureUnreachableIsMutable();
+      unreachable_.add(value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param values The unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllUnreachable(
+        java.lang.Iterable<java.lang.String> values) {
+      ensureUnreachableIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(
+          values, unreachable_);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearUnreachable() {
+      unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000002);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param value The bytes of the unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addUnreachableBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      ensureUnreachableIsMutable();
+      unreachable_.add(value);
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.ListNodesResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.ListNodesResponse)
+  private static final com.google.cloud.tpu.v1.ListNodesResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.ListNodesResponse();
+  }
+
+  public static com.google.cloud.tpu.v1.ListNodesResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListNodesResponse>
+      PARSER = new com.google.protobuf.AbstractParser<ListNodesResponse>() {
+    @java.lang.Override
+    public ListNodesResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ListNodesResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ListNodesResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListNodesResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.ListNodesResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponseOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponseOrBuilder.java
new file mode 100644
index 000000000000..95c9ef55efc5
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListNodesResponseOrBuilder.java
@@ -0,0 +1,114 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface ListNodesResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.ListNodesResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+   */
+  java.util.List<com.google.cloud.tpu.v1.Node> 
+      getNodesList();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+   */
+  com.google.cloud.tpu.v1.Node getNodes(int index);
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+   */
+  int getNodesCount();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.tpu.v1.NodeOrBuilder> 
+      getNodesOrBuilderList();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Node nodes = 1;</code>
+   */
+  com.google.cloud.tpu.v1.NodeOrBuilder getNodesOrBuilder(
+      int index);
+
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString
+      getNextPageTokenBytes();
+
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return A list containing the unreachable.
+   */
+  java.util.List<java.lang.String>
+      getUnreachableList();
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return The count of unreachable.
+   */
+  int getUnreachableCount();
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the element to return.
+   * @return The unreachable at the given index.
+   */
+  java.lang.String getUnreachable(int index);
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the value to return.
+   * @return The bytes of the unreachable at the given index.
+   */
+  com.google.protobuf.ByteString
+      getUnreachableBytes(int index);
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequest.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequest.java
new file mode 100644
index 000000000000..cbf85e7103fe
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequest.java
@@ -0,0 +1,1173 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Request for [ListTensorFlowVersions][google.cloud.tpu.v1.Tpu.ListTensorFlowVersions].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.ListTensorFlowVersionsRequest}
+ */
+public final class ListTensorFlowVersionsRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.ListTensorFlowVersionsRequest)
+    ListTensorFlowVersionsRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ListTensorFlowVersionsRequest.newBuilder() to construct.
+  private ListTensorFlowVersionsRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ListTensorFlowVersionsRequest() {
+    parent_ = "";
+    pageToken_ = "";
+    filter_ = "";
+    orderBy_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ListTensorFlowVersionsRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ListTensorFlowVersionsRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
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+        switch (tag) {
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+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            parent_ = s;
+            break;
+          }
+          case 16: {
+
+            pageSize_ = input.readInt32();
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            pageToken_ = s;
+            break;
+          }
+          case 42: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            filter_ = s;
+            break;
+          }
+          case 50: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            orderBy_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest.class, com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
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+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      parent_ = b;
+      return b;
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+      return (com.google.protobuf.ByteString) ref;
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+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 2;
+  private int pageSize_;
+  /**
+   * <pre>
+   * The maximum number of items to return.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The bytes for pageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getPageTokenBytes() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      pageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
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+  }
+
+  public static final int FILTER_FIELD_NUMBER = 5;
+  private volatile java.lang.Object filter_;
+  /**
+   * <pre>
+   * List filter.
+   * </pre>
+   *
+   * <code>string filter = 5;</code>
+   * @return The filter.
+   */
+  @java.lang.Override
+  public java.lang.String getFilter() {
+    java.lang.Object ref = filter_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      filter_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * List filter.
+   * </pre>
+   *
+   * <code>string filter = 5;</code>
+   * @return The bytes for filter.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getFilterBytes() {
+    java.lang.Object ref = filter_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      filter_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ORDER_BY_FIELD_NUMBER = 6;
+  private volatile java.lang.Object orderBy_;
+  /**
+   * <pre>
+   * Sort results.
+   * </pre>
+   *
+   * <code>string order_by = 6;</code>
+   * @return The orderBy.
+   */
+  @java.lang.Override
+  public java.lang.String getOrderBy() {
+    java.lang.Object ref = orderBy_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      orderBy_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Sort results.
+   * </pre>
+   *
+   * <code>string order_by = 6;</code>
+   * @return The bytes for orderBy.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getOrderByBytes() {
+    java.lang.Object ref = orderBy_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      orderBy_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
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+    if (pageSize_ != 0) {
+      output.writeInt32(2, pageSize_);
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+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
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+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(filter_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 5, filter_);
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+        orderBy_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @param value The orderBy to set.
+     * @return This builder for chaining.
+     */
+    public Builder setOrderBy(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      orderBy_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearOrderBy() {
+      
+      orderBy_ = getDefaultInstance().getOrderBy();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @param value The bytes for orderBy to set.
+     * @return This builder for chaining.
+     */
+    public Builder setOrderByBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      orderBy_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.ListTensorFlowVersionsRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.ListTensorFlowVersionsRequest)
+  private static final com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest();
+  }
+
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListTensorFlowVersionsRequest>
+      PARSER = new com.google.protobuf.AbstractParser<ListTensorFlowVersionsRequest>() {
+    @java.lang.Override
+    public ListTensorFlowVersionsRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ListTensorFlowVersionsRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ListTensorFlowVersionsRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListTensorFlowVersionsRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequestOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequestOrBuilder.java
new file mode 100644
index 000000000000..b69e0e0286a2
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsRequestOrBuilder.java
@@ -0,0 +1,99 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface ListTensorFlowVersionsRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.ListTensorFlowVersionsRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString
+      getParentBytes();
+
+  /**
+   * <pre>
+   * The maximum number of items to return.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString
+      getPageTokenBytes();
+
+  /**
+   * <pre>
+   * List filter.
+   * </pre>
+   *
+   * <code>string filter = 5;</code>
+   * @return The filter.
+   */
+  java.lang.String getFilter();
+  /**
+   * <pre>
+   * List filter.
+   * </pre>
+   *
+   * <code>string filter = 5;</code>
+   * @return The bytes for filter.
+   */
+  com.google.protobuf.ByteString
+      getFilterBytes();
+
+  /**
+   * <pre>
+   * Sort results.
+   * </pre>
+   *
+   * <code>string order_by = 6;</code>
+   * @return The orderBy.
+   */
+  java.lang.String getOrderBy();
+  /**
+   * <pre>
+   * Sort results.
+   * </pre>
+   *
+   * <code>string order_by = 6;</code>
+   * @return The bytes for orderBy.
+   */
+  com.google.protobuf.ByteString
+      getOrderByBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponse.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponse.java
new file mode 100644
index 000000000000..ad15c4792f37
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponse.java
@@ -0,0 +1,1282 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Response for [ListTensorFlowVersions][google.cloud.tpu.v1.Tpu.ListTensorFlowVersions].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.ListTensorFlowVersionsResponse}
+ */
+public final class ListTensorFlowVersionsResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.ListTensorFlowVersionsResponse)
+    ListTensorFlowVersionsResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ListTensorFlowVersionsResponse.newBuilder() to construct.
+  private ListTensorFlowVersionsResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ListTensorFlowVersionsResponse() {
+    tensorflowVersions_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+    unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ListTensorFlowVersionsResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ListTensorFlowVersionsResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+              tensorflowVersions_ = new java.util.ArrayList<com.google.cloud.tpu.v1.TensorFlowVersion>();
+              mutable_bitField0_ |= 0x00000001;
+            }
+            tensorflowVersions_.add(
+                input.readMessage(com.google.cloud.tpu.v1.TensorFlowVersion.parser(), extensionRegistry));
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            nextPageToken_ = s;
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+            if (!((mutable_bitField0_ & 0x00000002) != 0)) {
+              unreachable_ = new com.google.protobuf.LazyStringArrayList();
+              mutable_bitField0_ |= 0x00000002;
+            }
+            unreachable_.add(s);
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        tensorflowVersions_ = java.util.Collections.unmodifiableList(tensorflowVersions_);
+      }
+      if (((mutable_bitField0_ & 0x00000002) != 0)) {
+        unreachable_ = unreachable_.getUnmodifiableView();
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse.class, com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse.Builder.class);
+  }
+
+  public static final int TENSORFLOW_VERSIONS_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.tpu.v1.TensorFlowVersion> tensorflowVersions_;
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.tpu.v1.TensorFlowVersion> getTensorflowVersionsList() {
+    return tensorflowVersions_;
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.tpu.v1.TensorFlowVersionOrBuilder> 
+      getTensorflowVersionsOrBuilderList() {
+    return tensorflowVersions_;
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+   */
+  @java.lang.Override
+  public int getTensorflowVersionsCount() {
+    return tensorflowVersions_.size();
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.TensorFlowVersion getTensorflowVersions(int index) {
+    return tensorflowVersions_.get(index);
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.TensorFlowVersionOrBuilder getTensorflowVersionsOrBuilder(
+      int index) {
+    return tensorflowVersions_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The bytes for nextPageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      nextPageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int UNREACHABLE_FIELD_NUMBER = 3;
+  private com.google.protobuf.LazyStringList unreachable_;
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return A list containing the unreachable.
+   */
+  public com.google.protobuf.ProtocolStringList
+      getUnreachableList() {
+    return unreachable_;
+  }
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return The count of unreachable.
+   */
+  public int getUnreachableCount() {
+    return unreachable_.size();
+  }
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the element to return.
+   * @return The unreachable at the given index.
+   */
+  public java.lang.String getUnreachable(int index) {
+    return unreachable_.get(index);
+  }
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the value to return.
+   * @return The bytes of the unreachable at the given index.
+   */
+  public com.google.protobuf.ByteString
+      getUnreachableBytes(int index) {
+    return unreachable_.getByteString(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    for (int i = 0; i < tensorflowVersions_.size(); i++) {
+      output.writeMessage(1, tensorflowVersions_.get(i));
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
+    }
+    for (int i = 0; i < unreachable_.size(); i++) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, unreachable_.getRaw(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < tensorflowVersions_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(1, tensorflowVersions_.get(i));
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
+    }
+    {
+      int dataSize = 0;
+      for (int i = 0; i < unreachable_.size(); i++) {
+        dataSize += computeStringSizeNoTag(unreachable_.getRaw(i));
+      }
+      size += dataSize;
+      size += 1 * getUnreachableList().size();
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse other = (com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse) obj;
+
+    if (!getTensorflowVersionsList()
+        .equals(other.getTensorflowVersionsList())) return false;
+    if (!getNextPageToken()
+        .equals(other.getNextPageToken())) return false;
+    if (!getUnreachableList()
+        .equals(other.getUnreachableList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getTensorflowVersionsCount() > 0) {
+      hash = (37 * hash) + TENSORFLOW_VERSIONS_FIELD_NUMBER;
+      hash = (53 * hash) + getTensorflowVersionsList().hashCode();
+    }
+    hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
+    hash = (53 * hash) + getNextPageToken().hashCode();
+    if (getUnreachableCount() > 0) {
+      hash = (37 * hash) + UNREACHABLE_FIELD_NUMBER;
+      hash = (53 * hash) + getUnreachableList().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Response for [ListTensorFlowVersions][google.cloud.tpu.v1.Tpu.ListTensorFlowVersions].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.ListTensorFlowVersionsResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.ListTensorFlowVersionsResponse)
+      com.google.cloud.tpu.v1.ListTensorFlowVersionsResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse.class, com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+        getTensorflowVersionsFieldBuilder();
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (tensorflowVersionsBuilder_ == null) {
+        tensorflowVersions_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        tensorflowVersionsBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000002);
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ListTensorFlowVersionsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse build() {
+      com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse buildPartial() {
+      com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse result = new com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (tensorflowVersionsBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          tensorflowVersions_ = java.util.Collections.unmodifiableList(tensorflowVersions_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.tensorflowVersions_ = tensorflowVersions_;
+      } else {
+        result.tensorflowVersions_ = tensorflowVersionsBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      if (((bitField0_ & 0x00000002) != 0)) {
+        unreachable_ = unreachable_.getUnmodifiableView();
+        bitField0_ = (bitField0_ & ~0x00000002);
+      }
+      result.unreachable_ = unreachable_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse) {
+        return mergeFrom((com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse other) {
+      if (other == com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse.getDefaultInstance()) return this;
+      if (tensorflowVersionsBuilder_ == null) {
+        if (!other.tensorflowVersions_.isEmpty()) {
+          if (tensorflowVersions_.isEmpty()) {
+            tensorflowVersions_ = other.tensorflowVersions_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureTensorflowVersionsIsMutable();
+            tensorflowVersions_.addAll(other.tensorflowVersions_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.tensorflowVersions_.isEmpty()) {
+          if (tensorflowVersionsBuilder_.isEmpty()) {
+            tensorflowVersionsBuilder_.dispose();
+            tensorflowVersionsBuilder_ = null;
+            tensorflowVersions_ = other.tensorflowVersions_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            tensorflowVersionsBuilder_ = 
+              com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
+                 getTensorflowVersionsFieldBuilder() : null;
+          } else {
+            tensorflowVersionsBuilder_.addAllMessages(other.tensorflowVersions_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      if (!other.unreachable_.isEmpty()) {
+        if (unreachable_.isEmpty()) {
+          unreachable_ = other.unreachable_;
+          bitField0_ = (bitField0_ & ~0x00000002);
+        } else {
+          ensureUnreachableIsMutable();
+          unreachable_.addAll(other.unreachable_);
+        }
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.tpu.v1.TensorFlowVersion> tensorflowVersions_ =
+      java.util.Collections.emptyList();
+    private void ensureTensorflowVersionsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        tensorflowVersions_ = new java.util.ArrayList<com.google.cloud.tpu.v1.TensorFlowVersion>(tensorflowVersions_);
+        bitField0_ |= 0x00000001;
+       }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v1.TensorFlowVersion, com.google.cloud.tpu.v1.TensorFlowVersion.Builder, com.google.cloud.tpu.v1.TensorFlowVersionOrBuilder> tensorflowVersionsBuilder_;
+
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v1.TensorFlowVersion> getTensorflowVersionsList() {
+      if (tensorflowVersionsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(tensorflowVersions_);
+      } else {
+        return tensorflowVersionsBuilder_.getMessageList();
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public int getTensorflowVersionsCount() {
+      if (tensorflowVersionsBuilder_ == null) {
+        return tensorflowVersions_.size();
+      } else {
+        return tensorflowVersionsBuilder_.getCount();
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.TensorFlowVersion getTensorflowVersions(int index) {
+      if (tensorflowVersionsBuilder_ == null) {
+        return tensorflowVersions_.get(index);
+      } else {
+        return tensorflowVersionsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public Builder setTensorflowVersions(
+        int index, com.google.cloud.tpu.v1.TensorFlowVersion value) {
+      if (tensorflowVersionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTensorflowVersionsIsMutable();
+        tensorflowVersions_.set(index, value);
+        onChanged();
+      } else {
+        tensorflowVersionsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public Builder setTensorflowVersions(
+        int index, com.google.cloud.tpu.v1.TensorFlowVersion.Builder builderForValue) {
+      if (tensorflowVersionsBuilder_ == null) {
+        ensureTensorflowVersionsIsMutable();
+        tensorflowVersions_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        tensorflowVersionsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public Builder addTensorflowVersions(com.google.cloud.tpu.v1.TensorFlowVersion value) {
+      if (tensorflowVersionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTensorflowVersionsIsMutable();
+        tensorflowVersions_.add(value);
+        onChanged();
+      } else {
+        tensorflowVersionsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public Builder addTensorflowVersions(
+        int index, com.google.cloud.tpu.v1.TensorFlowVersion value) {
+      if (tensorflowVersionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTensorflowVersionsIsMutable();
+        tensorflowVersions_.add(index, value);
+        onChanged();
+      } else {
+        tensorflowVersionsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public Builder addTensorflowVersions(
+        com.google.cloud.tpu.v1.TensorFlowVersion.Builder builderForValue) {
+      if (tensorflowVersionsBuilder_ == null) {
+        ensureTensorflowVersionsIsMutable();
+        tensorflowVersions_.add(builderForValue.build());
+        onChanged();
+      } else {
+        tensorflowVersionsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public Builder addTensorflowVersions(
+        int index, com.google.cloud.tpu.v1.TensorFlowVersion.Builder builderForValue) {
+      if (tensorflowVersionsBuilder_ == null) {
+        ensureTensorflowVersionsIsMutable();
+        tensorflowVersions_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        tensorflowVersionsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public Builder addAllTensorflowVersions(
+        java.lang.Iterable<? extends com.google.cloud.tpu.v1.TensorFlowVersion> values) {
+      if (tensorflowVersionsBuilder_ == null) {
+        ensureTensorflowVersionsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, tensorflowVersions_);
+        onChanged();
+      } else {
+        tensorflowVersionsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public Builder clearTensorflowVersions() {
+      if (tensorflowVersionsBuilder_ == null) {
+        tensorflowVersions_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        tensorflowVersionsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public Builder removeTensorflowVersions(int index) {
+      if (tensorflowVersionsBuilder_ == null) {
+        ensureTensorflowVersionsIsMutable();
+        tensorflowVersions_.remove(index);
+        onChanged();
+      } else {
+        tensorflowVersionsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.TensorFlowVersion.Builder getTensorflowVersionsBuilder(
+        int index) {
+      return getTensorflowVersionsFieldBuilder().getBuilder(index);
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.TensorFlowVersionOrBuilder getTensorflowVersionsOrBuilder(
+        int index) {
+      if (tensorflowVersionsBuilder_ == null) {
+        return tensorflowVersions_.get(index);  } else {
+        return tensorflowVersionsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.tpu.v1.TensorFlowVersionOrBuilder> 
+         getTensorflowVersionsOrBuilderList() {
+      if (tensorflowVersionsBuilder_ != null) {
+        return tensorflowVersionsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(tensorflowVersions_);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.TensorFlowVersion.Builder addTensorflowVersionsBuilder() {
+      return getTensorflowVersionsFieldBuilder().addBuilder(
+          com.google.cloud.tpu.v1.TensorFlowVersion.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public com.google.cloud.tpu.v1.TensorFlowVersion.Builder addTensorflowVersionsBuilder(
+        int index) {
+      return getTensorflowVersionsFieldBuilder().addBuilder(
+          index, com.google.cloud.tpu.v1.TensorFlowVersion.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v1.TensorFlowVersion.Builder> 
+         getTensorflowVersionsBuilderList() {
+      return getTensorflowVersionsFieldBuilder().getBuilderList();
+    }
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v1.TensorFlowVersion, com.google.cloud.tpu.v1.TensorFlowVersion.Builder, com.google.cloud.tpu.v1.TensorFlowVersionOrBuilder> 
+        getTensorflowVersionsFieldBuilder() {
+      if (tensorflowVersionsBuilder_ == null) {
+        tensorflowVersionsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.tpu.v1.TensorFlowVersion, com.google.cloud.tpu.v1.TensorFlowVersion.Builder, com.google.cloud.tpu.v1.TensorFlowVersionOrBuilder>(
+                tensorflowVersions_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        tensorflowVersions_ = null;
+      }
+      return tensorflowVersionsBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return The nextPageToken.
+     */
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+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
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+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return The bytes for nextPageToken.
+     */
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+        getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
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+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+      
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      nextPageToken_ = value;
+      onChanged();
+      return this;
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+    private com.google.protobuf.LazyStringList unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
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+     * Locations that could not be reached.
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+     * <code>repeated string unreachable = 3;</code>
+     * @return A list containing the unreachable.
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+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
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+     */
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+      return unreachable_.size();
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+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index of the element to return.
+     * @return The unreachable at the given index.
+     */
+    public java.lang.String getUnreachable(int index) {
+      return unreachable_.get(index);
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index of the value to return.
+     * @return The bytes of the unreachable at the given index.
+     */
+    public com.google.protobuf.ByteString
+        getUnreachableBytes(int index) {
+      return unreachable_.getByteString(index);
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index to set the value at.
+     * @param value The unreachable to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUnreachable(
+        int index, java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureUnreachableIsMutable();
+      unreachable_.set(index, value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param value The unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addUnreachable(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureUnreachableIsMutable();
+      unreachable_.add(value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param values The unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllUnreachable(
+        java.lang.Iterable<java.lang.String> values) {
+      ensureUnreachableIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(
+          values, unreachable_);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearUnreachable() {
+      unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000002);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param value The bytes of the unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addUnreachableBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      ensureUnreachableIsMutable();
+      unreachable_.add(value);
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.ListTensorFlowVersionsResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.ListTensorFlowVersionsResponse)
+  private static final com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse();
+  }
+
+  public static com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListTensorFlowVersionsResponse>
+      PARSER = new com.google.protobuf.AbstractParser<ListTensorFlowVersionsResponse>() {
+    @java.lang.Override
+    public ListTensorFlowVersionsResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ListTensorFlowVersionsResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ListTensorFlowVersionsResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListTensorFlowVersionsResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponseOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponseOrBuilder.java
new file mode 100644
index 000000000000..1d97d8a83f45
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListTensorFlowVersionsResponseOrBuilder.java
@@ -0,0 +1,114 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface ListTensorFlowVersionsResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.ListTensorFlowVersionsResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+   */
+  java.util.List<com.google.cloud.tpu.v1.TensorFlowVersion> 
+      getTensorflowVersionsList();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+   */
+  com.google.cloud.tpu.v1.TensorFlowVersion getTensorflowVersions(int index);
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+   */
+  int getTensorflowVersionsCount();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.tpu.v1.TensorFlowVersionOrBuilder> 
+      getTensorflowVersionsOrBuilderList();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.TensorFlowVersion tensorflow_versions = 1;</code>
+   */
+  com.google.cloud.tpu.v1.TensorFlowVersionOrBuilder getTensorflowVersionsOrBuilder(
+      int index);
+
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString
+      getNextPageTokenBytes();
+
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return A list containing the unreachable.
+   */
+  java.util.List<java.lang.String>
+      getUnreachableList();
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return The count of unreachable.
+   */
+  int getUnreachableCount();
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the element to return.
+   * @return The unreachable at the given index.
+   */
+  java.lang.String getUnreachable(int index);
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the value to return.
+   * @return The bytes of the unreachable at the given index.
+   */
+  com.google.protobuf.ByteString
+      getUnreachableBytes(int index);
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/LocationName.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/LocationName.java
new file mode 100644
index 000000000000..429cc441d64f
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/LocationName.java
@@ -0,0 +1,192 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+@Generated("by gapic-generator-java")
+public class LocationName implements ResourceName {
+  private static final PathTemplate PROJECT_LOCATION =
+      PathTemplate.createWithoutUrlEncoding("projects/{project}/locations/{location}");
+  private volatile Map<String, String> fieldValuesMap;
+  private final String project;
+  private final String location;
+
+  @Deprecated
+  protected LocationName() {
+    project = null;
+    location = null;
+  }
+
+  private LocationName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+  }
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static LocationName of(String project, String location) {
+    return newBuilder().setProject(project).setLocation(location).build();
+  }
+
+  public static String format(String project, String location) {
+    return newBuilder().setProject(project).setLocation(location).build().toString();
+  }
+
+  public static LocationName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PROJECT_LOCATION.validatedMatch(
+            formattedString, "LocationName.parse: formattedString not in valid format");
+    return of(matchMap.get("project"), matchMap.get("location"));
+  }
+
+  public static List<LocationName> parseList(List<String> formattedStrings) {
+    List<LocationName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<LocationName> values) {
+    List<String> list = new ArrayList<>(values.size());
+    for (LocationName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT_LOCATION.matches(formattedString);
+  }
+
+  @Override
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PROJECT_LOCATION.instantiate("project", project, "location", location);
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      LocationName that = ((LocationName) o);
+      return Objects.equals(this.project, that.project)
+          && Objects.equals(this.location, that.location);
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    return h;
+  }
+
+  /** Builder for projects/{project}/locations/{location}. */
+  public static class Builder {
+    private String project;
+    private String location;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    private Builder(LocationName locationName) {
+      this.project = locationName.project;
+      this.location = locationName.location;
+    }
+
+    public LocationName build() {
+      return new LocationName(this);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpoint.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpoint.java
new file mode 100644
index 000000000000..def730101a40
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpoint.java
@@ -0,0 +1,675 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * A network endpoint over which a TPU worker can be reached.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.NetworkEndpoint}
+ */
+public final class NetworkEndpoint extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.NetworkEndpoint)
+    NetworkEndpointOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use NetworkEndpoint.newBuilder() to construct.
+  private NetworkEndpoint(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private NetworkEndpoint() {
+    ipAddress_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new NetworkEndpoint();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private NetworkEndpoint(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            ipAddress_ = s;
+            break;
+          }
+          case 16: {
+
+            port_ = input.readInt32();
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_NetworkEndpoint_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_NetworkEndpoint_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v1.NetworkEndpoint.class, com.google.cloud.tpu.v1.NetworkEndpoint.Builder.class);
+  }
+
+  public static final int IP_ADDRESS_FIELD_NUMBER = 1;
+  private volatile java.lang.Object ipAddress_;
+  /**
+   * <pre>
+   * The IP address of this network endpoint.
+   * </pre>
+   *
+   * <code>string ip_address = 1;</code>
+   * @return The ipAddress.
+   */
+  @java.lang.Override
+  public java.lang.String getIpAddress() {
+    java.lang.Object ref = ipAddress_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      ipAddress_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The IP address of this network endpoint.
+   * </pre>
+   *
+   * <code>string ip_address = 1;</code>
+   * @return The bytes for ipAddress.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getIpAddressBytes() {
+    java.lang.Object ref = ipAddress_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      ipAddress_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PORT_FIELD_NUMBER = 2;
+  private int port_;
+  /**
+   * <pre>
+   * The port of this network endpoint.
+   * </pre>
+   *
+   * <code>int32 port = 2;</code>
+   * @return The port.
+   */
+  @java.lang.Override
+  public int getPort() {
+    return port_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(ipAddress_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, ipAddress_);
+    }
+    if (port_ != 0) {
+      output.writeInt32(2, port_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(ipAddress_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, ipAddress_);
+    }
+    if (port_ != 0) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeInt32Size(2, port_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v1.NetworkEndpoint)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v1.NetworkEndpoint other = (com.google.cloud.tpu.v1.NetworkEndpoint) obj;
+
+    if (!getIpAddress()
+        .equals(other.getIpAddress())) return false;
+    if (getPort()
+        != other.getPort()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + IP_ADDRESS_FIELD_NUMBER;
+    hash = (53 * hash) + getIpAddress().hashCode();
+    hash = (37 * hash) + PORT_FIELD_NUMBER;
+    hash = (53 * hash) + getPort();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v1.NetworkEndpoint parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.NetworkEndpoint parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.NetworkEndpoint parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.NetworkEndpoint parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.NetworkEndpoint parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.NetworkEndpoint parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.NetworkEndpoint parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.NetworkEndpoint parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.NetworkEndpoint parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.NetworkEndpoint parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.NetworkEndpoint parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.NetworkEndpoint parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v1.NetworkEndpoint prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A network endpoint over which a TPU worker can be reached.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.NetworkEndpoint}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.NetworkEndpoint)
+      com.google.cloud.tpu.v1.NetworkEndpointOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_NetworkEndpoint_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_NetworkEndpoint_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v1.NetworkEndpoint.class, com.google.cloud.tpu.v1.NetworkEndpoint.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v1.NetworkEndpoint.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      ipAddress_ = "";
+
+      port_ = 0;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_NetworkEndpoint_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.NetworkEndpoint getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v1.NetworkEndpoint.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.NetworkEndpoint build() {
+      com.google.cloud.tpu.v1.NetworkEndpoint result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.NetworkEndpoint buildPartial() {
+      com.google.cloud.tpu.v1.NetworkEndpoint result = new com.google.cloud.tpu.v1.NetworkEndpoint(this);
+      result.ipAddress_ = ipAddress_;
+      result.port_ = port_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v1.NetworkEndpoint) {
+        return mergeFrom((com.google.cloud.tpu.v1.NetworkEndpoint)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v1.NetworkEndpoint other) {
+      if (other == com.google.cloud.tpu.v1.NetworkEndpoint.getDefaultInstance()) return this;
+      if (!other.getIpAddress().isEmpty()) {
+        ipAddress_ = other.ipAddress_;
+        onChanged();
+      }
+      if (other.getPort() != 0) {
+        setPort(other.getPort());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.NetworkEndpoint parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.NetworkEndpoint) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object ipAddress_ = "";
+    /**
+     * <pre>
+     * The IP address of this network endpoint.
+     * </pre>
+     *
+     * <code>string ip_address = 1;</code>
+     * @return The ipAddress.
+     */
+    public java.lang.String getIpAddress() {
+      java.lang.Object ref = ipAddress_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        ipAddress_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The IP address of this network endpoint.
+     * </pre>
+     *
+     * <code>string ip_address = 1;</code>
+     * @return The bytes for ipAddress.
+     */
+    public com.google.protobuf.ByteString
+        getIpAddressBytes() {
+      java.lang.Object ref = ipAddress_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        ipAddress_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The IP address of this network endpoint.
+     * </pre>
+     *
+     * <code>string ip_address = 1;</code>
+     * @param value The ipAddress to set.
+     * @return This builder for chaining.
+     */
+    public Builder setIpAddress(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      ipAddress_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The IP address of this network endpoint.
+     * </pre>
+     *
+     * <code>string ip_address = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearIpAddress() {
+      
+      ipAddress_ = getDefaultInstance().getIpAddress();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The IP address of this network endpoint.
+     * </pre>
+     *
+     * <code>string ip_address = 1;</code>
+     * @param value The bytes for ipAddress to set.
+     * @return This builder for chaining.
+     */
+    public Builder setIpAddressBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      ipAddress_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int port_ ;
+    /**
+     * <pre>
+     * The port of this network endpoint.
+     * </pre>
+     *
+     * <code>int32 port = 2;</code>
+     * @return The port.
+     */
+    @java.lang.Override
+    public int getPort() {
+      return port_;
+    }
+    /**
+     * <pre>
+     * The port of this network endpoint.
+     * </pre>
+     *
+     * <code>int32 port = 2;</code>
+     * @param value The port to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPort(int value) {
+      
+      port_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The port of this network endpoint.
+     * </pre>
+     *
+     * <code>int32 port = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPort() {
+      
+      port_ = 0;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.NetworkEndpoint)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.NetworkEndpoint)
+  private static final com.google.cloud.tpu.v1.NetworkEndpoint DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.NetworkEndpoint();
+  }
+
+  public static com.google.cloud.tpu.v1.NetworkEndpoint getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<NetworkEndpoint>
+      PARSER = new com.google.protobuf.AbstractParser<NetworkEndpoint>() {
+    @java.lang.Override
+    public NetworkEndpoint parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new NetworkEndpoint(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<NetworkEndpoint> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<NetworkEndpoint> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.NetworkEndpoint getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpointOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpointOrBuilder.java
new file mode 100644
index 000000000000..b77928c7db20
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NetworkEndpointOrBuilder.java
@@ -0,0 +1,39 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface NetworkEndpointOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.NetworkEndpoint)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The IP address of this network endpoint.
+   * </pre>
+   *
+   * <code>string ip_address = 1;</code>
+   * @return The ipAddress.
+   */
+  java.lang.String getIpAddress();
+  /**
+   * <pre>
+   * The IP address of this network endpoint.
+   * </pre>
+   *
+   * <code>string ip_address = 1;</code>
+   * @return The bytes for ipAddress.
+   */
+  com.google.protobuf.ByteString
+      getIpAddressBytes();
+
+  /**
+   * <pre>
+   * The port of this network endpoint.
+   * </pre>
+   *
+   * <code>int32 port = 2;</code>
+   * @return The port.
+   */
+  int getPort();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Node.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Node.java
new file mode 100644
index 000000000000..df3873a8784f
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Node.java
@@ -0,0 +1,5143 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * A TPU instance.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.Node}
+ */
+public final class Node extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.Node)
+    NodeOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use Node.newBuilder() to construct.
+  private Node(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private Node() {
+    name_ = "";
+    description_ = "";
+    acceleratorType_ = "";
+    ipAddress_ = "";
+    port_ = "";
+    state_ = 0;
+    healthDescription_ = "";
+    tensorflowVersion_ = "";
+    network_ = "";
+    cidrBlock_ = "";
+    serviceAccount_ = "";
+    networkEndpoints_ = java.util.Collections.emptyList();
+    health_ = 0;
+    apiVersion_ = 0;
+    symptoms_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new Node();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private Node(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            description_ = s;
+            break;
+          }
+          case 42: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            acceleratorType_ = s;
+            break;
+          }
+          case 66: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            ipAddress_ = s;
+            break;
+          }
+          case 72: {
+            int rawValue = input.readEnum();
+
+            state_ = rawValue;
+            break;
+          }
+          case 82: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            healthDescription_ = s;
+            break;
+          }
+          case 90: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            tensorflowVersion_ = s;
+            break;
+          }
+          case 98: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            network_ = s;
+            break;
+          }
+          case 106: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            cidrBlock_ = s;
+            break;
+          }
+          case 114: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            port_ = s;
+            break;
+          }
+          case 122: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            serviceAccount_ = s;
+            break;
+          }
+          case 130: {
+            com.google.protobuf.Timestamp.Builder subBuilder = null;
+            if (createTime_ != null) {
+              subBuilder = createTime_.toBuilder();
+            }
+            createTime_ = input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(createTime_);
+              createTime_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          case 138: {
+            com.google.cloud.tpu.v1.SchedulingConfig.Builder subBuilder = null;
+            if (schedulingConfig_ != null) {
+              subBuilder = schedulingConfig_.toBuilder();
+            }
+            schedulingConfig_ = input.readMessage(com.google.cloud.tpu.v1.SchedulingConfig.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(schedulingConfig_);
+              schedulingConfig_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          case 170: {
+            if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+              networkEndpoints_ = new java.util.ArrayList<com.google.cloud.tpu.v1.NetworkEndpoint>();
+              mutable_bitField0_ |= 0x00000001;
+            }
+            networkEndpoints_.add(
+                input.readMessage(com.google.cloud.tpu.v1.NetworkEndpoint.parser(), extensionRegistry));
+            break;
+          }
+          case 176: {
+            int rawValue = input.readEnum();
+
+            health_ = rawValue;
+            break;
+          }
+          case 194: {
+            if (!((mutable_bitField0_ & 0x00000002) != 0)) {
+              labels_ = com.google.protobuf.MapField.newMapField(
+                  LabelsDefaultEntryHolder.defaultEntry);
+              mutable_bitField0_ |= 0x00000002;
+            }
+            com.google.protobuf.MapEntry<java.lang.String, java.lang.String>
+            labels__ = input.readMessage(
+                LabelsDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
+            labels_.getMutableMap().put(
+                labels__.getKey(), labels__.getValue());
+            break;
+          }
+          case 216: {
+
+            useServiceNetworking_ = input.readBool();
+            break;
+          }
+          case 304: {
+            int rawValue = input.readEnum();
+
+            apiVersion_ = rawValue;
+            break;
+          }
+          case 314: {
+            if (!((mutable_bitField0_ & 0x00000004) != 0)) {
+              symptoms_ = new java.util.ArrayList<com.google.cloud.tpu.v1.Symptom>();
+              mutable_bitField0_ |= 0x00000004;
+            }
+            symptoms_.add(
+                input.readMessage(com.google.cloud.tpu.v1.Symptom.parser(), extensionRegistry));
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        networkEndpoints_ = java.util.Collections.unmodifiableList(networkEndpoints_);
+      }
+      if (((mutable_bitField0_ & 0x00000004) != 0)) {
+        symptoms_ = java.util.Collections.unmodifiableList(symptoms_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_Node_descriptor;
+  }
+
+  @SuppressWarnings({"rawtypes"})
+  @java.lang.Override
+  protected com.google.protobuf.MapField internalGetMapField(
+      int number) {
+    switch (number) {
+      case 24:
+        return internalGetLabels();
+      default:
+        throw new RuntimeException(
+            "Invalid map field number: " + number);
+    }
+  }
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_Node_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v1.Node.class, com.google.cloud.tpu.v1.Node.Builder.class);
+  }
+
+  /**
+   * <pre>
+   * Represents the different states of a TPU node during its lifecycle.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.tpu.v1.Node.State}
+   */
+  public enum State
+      implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     * <pre>
+     * TPU node state is not known/set.
+     * </pre>
+     *
+     * <code>STATE_UNSPECIFIED = 0;</code>
+     */
+    STATE_UNSPECIFIED(0),
+    /**
+     * <pre>
+     * TPU node is being created.
+     * </pre>
+     *
+     * <code>CREATING = 1;</code>
+     */
+    CREATING(1),
+    /**
+     * <pre>
+     * TPU node has been created and is fully usable.
+     * </pre>
+     *
+     * <code>READY = 2;</code>
+     */
+    READY(2),
+    /**
+     * <pre>
+     * TPU node is restarting.
+     * </pre>
+     *
+     * <code>RESTARTING = 3;</code>
+     */
+    RESTARTING(3),
+    /**
+     * <pre>
+     * TPU node is undergoing reimaging.
+     * </pre>
+     *
+     * <code>REIMAGING = 4;</code>
+     */
+    REIMAGING(4),
+    /**
+     * <pre>
+     * TPU node is being deleted.
+     * </pre>
+     *
+     * <code>DELETING = 5;</code>
+     */
+    DELETING(5),
+    /**
+     * <pre>
+     * TPU node is being repaired and may be unusable. Details can be
+     * found in the `help_description` field.
+     * </pre>
+     *
+     * <code>REPAIRING = 6;</code>
+     */
+    REPAIRING(6),
+    /**
+     * <pre>
+     * TPU node is stopped.
+     * </pre>
+     *
+     * <code>STOPPED = 8;</code>
+     */
+    STOPPED(8),
+    /**
+     * <pre>
+     * TPU node is currently stopping.
+     * </pre>
+     *
+     * <code>STOPPING = 9;</code>
+     */
+    STOPPING(9),
+    /**
+     * <pre>
+     * TPU node is currently starting.
+     * </pre>
+     *
+     * <code>STARTING = 10;</code>
+     */
+    STARTING(10),
+    /**
+     * <pre>
+     * TPU node has been preempted. Only applies to Preemptible TPU Nodes.
+     * </pre>
+     *
+     * <code>PREEMPTED = 11;</code>
+     */
+    PREEMPTED(11),
+    /**
+     * <pre>
+     * TPU node has been terminated due to maintenance or has reached the end of
+     * its life cycle (for preemptible nodes).
+     * </pre>
+     *
+     * <code>TERMINATED = 12;</code>
+     */
+    TERMINATED(12),
+    /**
+     * <pre>
+     * TPU node is currently hiding.
+     * </pre>
+     *
+     * <code>HIDING = 13;</code>
+     */
+    HIDING(13),
+    /**
+     * <pre>
+     * TPU node has been hidden.
+     * </pre>
+     *
+     * <code>HIDDEN = 14;</code>
+     */
+    HIDDEN(14),
+    /**
+     * <pre>
+     * TPU node is currently unhiding.
+     * </pre>
+     *
+     * <code>UNHIDING = 15;</code>
+     */
+    UNHIDING(15),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     * <pre>
+     * TPU node state is not known/set.
+     * </pre>
+     *
+     * <code>STATE_UNSPECIFIED = 0;</code>
+     */
+    public static final int STATE_UNSPECIFIED_VALUE = 0;
+    /**
+     * <pre>
+     * TPU node is being created.
+     * </pre>
+     *
+     * <code>CREATING = 1;</code>
+     */
+    public static final int CREATING_VALUE = 1;
+    /**
+     * <pre>
+     * TPU node has been created and is fully usable.
+     * </pre>
+     *
+     * <code>READY = 2;</code>
+     */
+    public static final int READY_VALUE = 2;
+    /**
+     * <pre>
+     * TPU node is restarting.
+     * </pre>
+     *
+     * <code>RESTARTING = 3;</code>
+     */
+    public static final int RESTARTING_VALUE = 3;
+    /**
+     * <pre>
+     * TPU node is undergoing reimaging.
+     * </pre>
+     *
+     * <code>REIMAGING = 4;</code>
+     */
+    public static final int REIMAGING_VALUE = 4;
+    /**
+     * <pre>
+     * TPU node is being deleted.
+     * </pre>
+     *
+     * <code>DELETING = 5;</code>
+     */
+    public static final int DELETING_VALUE = 5;
+    /**
+     * <pre>
+     * TPU node is being repaired and may be unusable. Details can be
+     * found in the `help_description` field.
+     * </pre>
+     *
+     * <code>REPAIRING = 6;</code>
+     */
+    public static final int REPAIRING_VALUE = 6;
+    /**
+     * <pre>
+     * TPU node is stopped.
+     * </pre>
+     *
+     * <code>STOPPED = 8;</code>
+     */
+    public static final int STOPPED_VALUE = 8;
+    /**
+     * <pre>
+     * TPU node is currently stopping.
+     * </pre>
+     *
+     * <code>STOPPING = 9;</code>
+     */
+    public static final int STOPPING_VALUE = 9;
+    /**
+     * <pre>
+     * TPU node is currently starting.
+     * </pre>
+     *
+     * <code>STARTING = 10;</code>
+     */
+    public static final int STARTING_VALUE = 10;
+    /**
+     * <pre>
+     * TPU node has been preempted. Only applies to Preemptible TPU Nodes.
+     * </pre>
+     *
+     * <code>PREEMPTED = 11;</code>
+     */
+    public static final int PREEMPTED_VALUE = 11;
+    /**
+     * <pre>
+     * TPU node has been terminated due to maintenance or has reached the end of
+     * its life cycle (for preemptible nodes).
+     * </pre>
+     *
+     * <code>TERMINATED = 12;</code>
+     */
+    public static final int TERMINATED_VALUE = 12;
+    /**
+     * <pre>
+     * TPU node is currently hiding.
+     * </pre>
+     *
+     * <code>HIDING = 13;</code>
+     */
+    public static final int HIDING_VALUE = 13;
+    /**
+     * <pre>
+     * TPU node has been hidden.
+     * </pre>
+     *
+     * <code>HIDDEN = 14;</code>
+     */
+    public static final int HIDDEN_VALUE = 14;
+    /**
+     * <pre>
+     * TPU node is currently unhiding.
+     * </pre>
+     *
+     * <code>UNHIDING = 15;</code>
+     */
+    public static final int UNHIDING_VALUE = 15;
+
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static State valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static State forNumber(int value) {
+      switch (value) {
+        case 0: return STATE_UNSPECIFIED;
+        case 1: return CREATING;
+        case 2: return READY;
+        case 3: return RESTARTING;
+        case 4: return REIMAGING;
+        case 5: return DELETING;
+        case 6: return REPAIRING;
+        case 8: return STOPPED;
+        case 9: return STOPPING;
+        case 10: return STARTING;
+        case 11: return PREEMPTED;
+        case 12: return TERMINATED;
+        case 13: return HIDING;
+        case 14: return HIDDEN;
+        case 15: return UNHIDING;
+        default: return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<State>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+    private static final com.google.protobuf.Internal.EnumLiteMap<
+        State> internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap<State>() {
+            public State findValueByNumber(int number) {
+              return State.forNumber(number);
+            }
+          };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor
+        getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+    public final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptorForType() {
+      return getDescriptor();
+    }
+    public static final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.Node.getDescriptor().getEnumTypes().get(0);
+    }
+
+    private static final State[] VALUES = values();
+
+    public static State valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private State(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.tpu.v1.Node.State)
+  }
+
+  /**
+   * <pre>
+   * Health defines the status of a TPU node as reported by
+   * Health Monitor.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.tpu.v1.Node.Health}
+   */
+  public enum Health
+      implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     * <pre>
+     * Health status is unknown: not initialized or failed to retrieve.
+     * </pre>
+     *
+     * <code>HEALTH_UNSPECIFIED = 0;</code>
+     */
+    HEALTH_UNSPECIFIED(0),
+    /**
+     * <pre>
+     * The resource is healthy.
+     * </pre>
+     *
+     * <code>HEALTHY = 1;</code>
+     */
+    HEALTHY(1),
+    /**
+     * <pre>
+     * The resource is unhealthy.
+     * </pre>
+     *
+     * <code>DEPRECATED_UNHEALTHY = 2;</code>
+     */
+    DEPRECATED_UNHEALTHY(2),
+    /**
+     * <pre>
+     * The resource is unresponsive.
+     * </pre>
+     *
+     * <code>TIMEOUT = 3;</code>
+     */
+    TIMEOUT(3),
+    /**
+     * <pre>
+     * The in-guest ML stack is unhealthy.
+     * </pre>
+     *
+     * <code>UNHEALTHY_TENSORFLOW = 4;</code>
+     */
+    UNHEALTHY_TENSORFLOW(4),
+    /**
+     * <pre>
+     * The node is under maintenance/priority boost caused rescheduling and
+     * will resume running once rescheduled.
+     * </pre>
+     *
+     * <code>UNHEALTHY_MAINTENANCE = 5;</code>
+     */
+    UNHEALTHY_MAINTENANCE(5),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     * <pre>
+     * Health status is unknown: not initialized or failed to retrieve.
+     * </pre>
+     *
+     * <code>HEALTH_UNSPECIFIED = 0;</code>
+     */
+    public static final int HEALTH_UNSPECIFIED_VALUE = 0;
+    /**
+     * <pre>
+     * The resource is healthy.
+     * </pre>
+     *
+     * <code>HEALTHY = 1;</code>
+     */
+    public static final int HEALTHY_VALUE = 1;
+    /**
+     * <pre>
+     * The resource is unhealthy.
+     * </pre>
+     *
+     * <code>DEPRECATED_UNHEALTHY = 2;</code>
+     */
+    public static final int DEPRECATED_UNHEALTHY_VALUE = 2;
+    /**
+     * <pre>
+     * The resource is unresponsive.
+     * </pre>
+     *
+     * <code>TIMEOUT = 3;</code>
+     */
+    public static final int TIMEOUT_VALUE = 3;
+    /**
+     * <pre>
+     * The in-guest ML stack is unhealthy.
+     * </pre>
+     *
+     * <code>UNHEALTHY_TENSORFLOW = 4;</code>
+     */
+    public static final int UNHEALTHY_TENSORFLOW_VALUE = 4;
+    /**
+     * <pre>
+     * The node is under maintenance/priority boost caused rescheduling and
+     * will resume running once rescheduled.
+     * </pre>
+     *
+     * <code>UNHEALTHY_MAINTENANCE = 5;</code>
+     */
+    public static final int UNHEALTHY_MAINTENANCE_VALUE = 5;
+
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static Health valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static Health forNumber(int value) {
+      switch (value) {
+        case 0: return HEALTH_UNSPECIFIED;
+        case 1: return HEALTHY;
+        case 2: return DEPRECATED_UNHEALTHY;
+        case 3: return TIMEOUT;
+        case 4: return UNHEALTHY_TENSORFLOW;
+        case 5: return UNHEALTHY_MAINTENANCE;
+        default: return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<Health>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+    private static final com.google.protobuf.Internal.EnumLiteMap<
+        Health> internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap<Health>() {
+            public Health findValueByNumber(int number) {
+              return Health.forNumber(number);
+            }
+          };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor
+        getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+    public final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptorForType() {
+      return getDescriptor();
+    }
+    public static final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.Node.getDescriptor().getEnumTypes().get(1);
+    }
+
+    private static final Health[] VALUES = values();
+
+    public static Health valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private Health(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.tpu.v1.Node.Health)
+  }
+
+  /**
+   * <pre>
+   * TPU API Version.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.tpu.v1.Node.ApiVersion}
+   */
+  public enum ApiVersion
+      implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     * <pre>
+     * API version is unknown.
+     * </pre>
+     *
+     * <code>API_VERSION_UNSPECIFIED = 0;</code>
+     */
+    API_VERSION_UNSPECIFIED(0),
+    /**
+     * <pre>
+     * TPU API V1Alpha1 version.
+     * </pre>
+     *
+     * <code>V1_ALPHA1 = 1;</code>
+     */
+    V1_ALPHA1(1),
+    /**
+     * <pre>
+     * TPU API V1 version.
+     * </pre>
+     *
+     * <code>V1 = 2;</code>
+     */
+    V1(2),
+    /**
+     * <pre>
+     * TPU API V2Alpha1 version.
+     * </pre>
+     *
+     * <code>V2_ALPHA1 = 3;</code>
+     */
+    V2_ALPHA1(3),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     * <pre>
+     * API version is unknown.
+     * </pre>
+     *
+     * <code>API_VERSION_UNSPECIFIED = 0;</code>
+     */
+    public static final int API_VERSION_UNSPECIFIED_VALUE = 0;
+    /**
+     * <pre>
+     * TPU API V1Alpha1 version.
+     * </pre>
+     *
+     * <code>V1_ALPHA1 = 1;</code>
+     */
+    public static final int V1_ALPHA1_VALUE = 1;
+    /**
+     * <pre>
+     * TPU API V1 version.
+     * </pre>
+     *
+     * <code>V1 = 2;</code>
+     */
+    public static final int V1_VALUE = 2;
+    /**
+     * <pre>
+     * TPU API V2Alpha1 version.
+     * </pre>
+     *
+     * <code>V2_ALPHA1 = 3;</code>
+     */
+    public static final int V2_ALPHA1_VALUE = 3;
+
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static ApiVersion valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static ApiVersion forNumber(int value) {
+      switch (value) {
+        case 0: return API_VERSION_UNSPECIFIED;
+        case 1: return V1_ALPHA1;
+        case 2: return V1;
+        case 3: return V2_ALPHA1;
+        default: return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<ApiVersion>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+    private static final com.google.protobuf.Internal.EnumLiteMap<
+        ApiVersion> internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap<ApiVersion>() {
+            public ApiVersion findValueByNumber(int number) {
+              return ApiVersion.forNumber(number);
+            }
+          };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor
+        getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+    public final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptorForType() {
+      return getDescriptor();
+    }
+    public static final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.Node.getDescriptor().getEnumTypes().get(2);
+    }
+
+    private static final ApiVersion[] VALUES = values();
+
+    public static ApiVersion valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private ApiVersion(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.tpu.v1.Node.ApiVersion)
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <pre>
+   * Output only. Immutable. The name of the TPU
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Output only. Immutable. The name of the TPU
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DESCRIPTION_FIELD_NUMBER = 3;
+  private volatile java.lang.Object description_;
+  /**
+   * <pre>
+   * The user-supplied description of the TPU. Maximum of 512 characters.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   * @return The description.
+   */
+  @java.lang.Override
+  public java.lang.String getDescription() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      description_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The user-supplied description of the TPU. Maximum of 512 characters.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   * @return The bytes for description.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getDescriptionBytes() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      description_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ACCELERATOR_TYPE_FIELD_NUMBER = 5;
+  private volatile java.lang.Object acceleratorType_;
+  /**
+   * <pre>
+   * Required. The type of hardware accelerators associated with this node.
+   * </pre>
+   *
+   * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The acceleratorType.
+   */
+  @java.lang.Override
+  public java.lang.String getAcceleratorType() {
+    java.lang.Object ref = acceleratorType_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      acceleratorType_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The type of hardware accelerators associated with this node.
+   * </pre>
+   *
+   * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The bytes for acceleratorType.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getAcceleratorTypeBytes() {
+    java.lang.Object ref = acceleratorType_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      acceleratorType_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int IP_ADDRESS_FIELD_NUMBER = 8;
+  private volatile java.lang.Object ipAddress_;
+  /**
+   * <pre>
+   * Output only. DEPRECATED! Use network_endpoints instead.
+   * The network address for the TPU Node as visible to Compute Engine
+   * instances.
+   * </pre>
+   *
+   * <code>string ip_address = 8 [deprecated = true];</code>
+   * @deprecated google.cloud.tpu.v1.Node.ip_address is deprecated.
+   *     See google/cloud/tpu/v1/cloud_tpu.proto;l=275
+   * @return The ipAddress.
+   */
+  @java.lang.Override
+  @java.lang.Deprecated public java.lang.String getIpAddress() {
+    java.lang.Object ref = ipAddress_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      ipAddress_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Output only. DEPRECATED! Use network_endpoints instead.
+   * The network address for the TPU Node as visible to Compute Engine
+   * instances.
+   * </pre>
+   *
+   * <code>string ip_address = 8 [deprecated = true];</code>
+   * @deprecated google.cloud.tpu.v1.Node.ip_address is deprecated.
+   *     See google/cloud/tpu/v1/cloud_tpu.proto;l=275
+   * @return The bytes for ipAddress.
+   */
+  @java.lang.Override
+  @java.lang.Deprecated public com.google.protobuf.ByteString
+      getIpAddressBytes() {
+    java.lang.Object ref = ipAddress_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      ipAddress_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PORT_FIELD_NUMBER = 14;
+  private volatile java.lang.Object port_;
+  /**
+   * <pre>
+   * Output only. DEPRECATED! Use network_endpoints instead.
+   * The network port for the TPU Node as visible to Compute Engine instances.
+   * </pre>
+   *
+   * <code>string port = 14 [deprecated = true];</code>
+   * @deprecated google.cloud.tpu.v1.Node.port is deprecated.
+   *     See google/cloud/tpu/v1/cloud_tpu.proto;l=279
+   * @return The port.
+   */
+  @java.lang.Override
+  @java.lang.Deprecated public java.lang.String getPort() {
+    java.lang.Object ref = port_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      port_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Output only. DEPRECATED! Use network_endpoints instead.
+   * The network port for the TPU Node as visible to Compute Engine instances.
+   * </pre>
+   *
+   * <code>string port = 14 [deprecated = true];</code>
+   * @deprecated google.cloud.tpu.v1.Node.port is deprecated.
+   *     See google/cloud/tpu/v1/cloud_tpu.proto;l=279
+   * @return The bytes for port.
+   */
+  @java.lang.Override
+  @java.lang.Deprecated public com.google.protobuf.ByteString
+      getPortBytes() {
+    java.lang.Object ref = port_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      port_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int STATE_FIELD_NUMBER = 9;
+  private int state_;
+  /**
+   * <pre>
+   * Output only. The current state for the TPU Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The enum numeric value on the wire for state.
+   */
+  @java.lang.Override public int getStateValue() {
+    return state_;
+  }
+  /**
+   * <pre>
+   * Output only. The current state for the TPU Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The state.
+   */
+  @java.lang.Override public com.google.cloud.tpu.v1.Node.State getState() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.tpu.v1.Node.State result = com.google.cloud.tpu.v1.Node.State.valueOf(state_);
+    return result == null ? com.google.cloud.tpu.v1.Node.State.UNRECOGNIZED : result;
+  }
+
+  public static final int HEALTH_DESCRIPTION_FIELD_NUMBER = 10;
+  private volatile java.lang.Object healthDescription_;
+  /**
+   * <pre>
+   * Output only. If this field is populated, it contains a description of why the TPU Node
+   * is unhealthy.
+   * </pre>
+   *
+   * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The healthDescription.
+   */
+  @java.lang.Override
+  public java.lang.String getHealthDescription() {
+    java.lang.Object ref = healthDescription_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      healthDescription_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Output only. If this field is populated, it contains a description of why the TPU Node
+   * is unhealthy.
+   * </pre>
+   *
+   * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The bytes for healthDescription.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getHealthDescriptionBytes() {
+    java.lang.Object ref = healthDescription_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      healthDescription_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TENSORFLOW_VERSION_FIELD_NUMBER = 11;
+  private volatile java.lang.Object tensorflowVersion_;
+  /**
+   * <pre>
+   * Required. The version of Tensorflow running in the Node.
+   * </pre>
+   *
+   * <code>string tensorflow_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The tensorflowVersion.
+   */
+  @java.lang.Override
+  public java.lang.String getTensorflowVersion() {
+    java.lang.Object ref = tensorflowVersion_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      tensorflowVersion_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The version of Tensorflow running in the Node.
+   * </pre>
+   *
+   * <code>string tensorflow_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The bytes for tensorflowVersion.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getTensorflowVersionBytes() {
+    java.lang.Object ref = tensorflowVersion_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      tensorflowVersion_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int NETWORK_FIELD_NUMBER = 12;
+  private volatile java.lang.Object network_;
+  /**
+   * <pre>
+   * The name of a network they wish to peer the TPU node to. It must be a
+   * preexisting Compute Engine network inside of the project on which this API
+   * has been activated. If none is provided, "default" will be used.
+   * </pre>
+   *
+   * <code>string network = 12;</code>
+   * @return The network.
+   */
+  @java.lang.Override
+  public java.lang.String getNetwork() {
+    java.lang.Object ref = network_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      network_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The name of a network they wish to peer the TPU node to. It must be a
+   * preexisting Compute Engine network inside of the project on which this API
+   * has been activated. If none is provided, "default" will be used.
+   * </pre>
+   *
+   * <code>string network = 12;</code>
+   * @return The bytes for network.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNetworkBytes() {
+    java.lang.Object ref = network_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      network_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int CIDR_BLOCK_FIELD_NUMBER = 13;
+  private volatile java.lang.Object cidrBlock_;
+  /**
+   * <pre>
+   * The CIDR block that the TPU node will use when selecting an IP address.
+   * This CIDR block must be a /29 block; the Compute Engine networks API
+   * forbids a smaller block, and using a larger block would be wasteful (a
+   * node can only consume one IP address). Errors will occur if the CIDR block
+   * has already been used for a currently existing TPU node, the CIDR block
+   * conflicts with any subnetworks in the user's provided network, or the
+   * provided network is peered with another network that is using that CIDR
+   * block.
+   * </pre>
+   *
+   * <code>string cidr_block = 13;</code>
+   * @return The cidrBlock.
+   */
+  @java.lang.Override
+  public java.lang.String getCidrBlock() {
+    java.lang.Object ref = cidrBlock_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      cidrBlock_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The CIDR block that the TPU node will use when selecting an IP address.
+   * This CIDR block must be a /29 block; the Compute Engine networks API
+   * forbids a smaller block, and using a larger block would be wasteful (a
+   * node can only consume one IP address). Errors will occur if the CIDR block
+   * has already been used for a currently existing TPU node, the CIDR block
+   * conflicts with any subnetworks in the user's provided network, or the
+   * provided network is peered with another network that is using that CIDR
+   * block.
+   * </pre>
+   *
+   * <code>string cidr_block = 13;</code>
+   * @return The bytes for cidrBlock.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getCidrBlockBytes() {
+    java.lang.Object ref = cidrBlock_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      cidrBlock_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int SERVICE_ACCOUNT_FIELD_NUMBER = 15;
+  private volatile java.lang.Object serviceAccount_;
+  /**
+   * <pre>
+   * Output only. The service account used to run the tensor flow services within the node.
+   * To share resources, including Google Cloud Storage data, with the
+   * Tensorflow job running in the Node, this account must have permissions to
+   * that data.
+   * </pre>
+   *
+   * <code>string service_account = 15 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The serviceAccount.
+   */
+  @java.lang.Override
+  public java.lang.String getServiceAccount() {
+    java.lang.Object ref = serviceAccount_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      serviceAccount_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Output only. The service account used to run the tensor flow services within the node.
+   * To share resources, including Google Cloud Storage data, with the
+   * Tensorflow job running in the Node, this account must have permissions to
+   * that data.
+   * </pre>
+   *
+   * <code>string service_account = 15 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The bytes for serviceAccount.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getServiceAccountBytes() {
+    java.lang.Object ref = serviceAccount_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      serviceAccount_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int CREATE_TIME_FIELD_NUMBER = 16;
+  private com.google.protobuf.Timestamp createTime_;
+  /**
+   * <pre>
+   * Output only. The time when the node was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return Whether the createTime field is set.
+   */
+  @java.lang.Override
+  public boolean hasCreateTime() {
+    return createTime_ != null;
+  }
+  /**
+   * <pre>
+   * Output only. The time when the node was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The createTime.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getCreateTime() {
+    return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+  }
+  /**
+   * <pre>
+   * Output only. The time when the node was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+    return getCreateTime();
+  }
+
+  public static final int SCHEDULING_CONFIG_FIELD_NUMBER = 17;
+  private com.google.cloud.tpu.v1.SchedulingConfig schedulingConfig_;
+  /**
+   * <pre>
+   * The scheduling options for this node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+   * @return Whether the schedulingConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasSchedulingConfig() {
+    return schedulingConfig_ != null;
+  }
+  /**
+   * <pre>
+   * The scheduling options for this node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+   * @return The schedulingConfig.
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.SchedulingConfig getSchedulingConfig() {
+    return schedulingConfig_ == null ? com.google.cloud.tpu.v1.SchedulingConfig.getDefaultInstance() : schedulingConfig_;
+  }
+  /**
+   * <pre>
+   * The scheduling options for this node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.SchedulingConfigOrBuilder getSchedulingConfigOrBuilder() {
+    return getSchedulingConfig();
+  }
+
+  public static final int NETWORK_ENDPOINTS_FIELD_NUMBER = 21;
+  private java.util.List<com.google.cloud.tpu.v1.NetworkEndpoint> networkEndpoints_;
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that Tensorflow clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.tpu.v1.NetworkEndpoint> getNetworkEndpointsList() {
+    return networkEndpoints_;
+  }
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that Tensorflow clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.tpu.v1.NetworkEndpointOrBuilder> 
+      getNetworkEndpointsOrBuilderList() {
+    return networkEndpoints_;
+  }
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that Tensorflow clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public int getNetworkEndpointsCount() {
+    return networkEndpoints_.size();
+  }
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that Tensorflow clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.NetworkEndpoint getNetworkEndpoints(int index) {
+    return networkEndpoints_.get(index);
+  }
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that Tensorflow clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.NetworkEndpointOrBuilder getNetworkEndpointsOrBuilder(
+      int index) {
+    return networkEndpoints_.get(index);
+  }
+
+  public static final int HEALTH_FIELD_NUMBER = 22;
+  private int health_;
+  /**
+   * <pre>
+   * The health status of the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node.Health health = 22;</code>
+   * @return The enum numeric value on the wire for health.
+   */
+  @java.lang.Override public int getHealthValue() {
+    return health_;
+  }
+  /**
+   * <pre>
+   * The health status of the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node.Health health = 22;</code>
+   * @return The health.
+   */
+  @java.lang.Override public com.google.cloud.tpu.v1.Node.Health getHealth() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.tpu.v1.Node.Health result = com.google.cloud.tpu.v1.Node.Health.valueOf(health_);
+    return result == null ? com.google.cloud.tpu.v1.Node.Health.UNRECOGNIZED : result;
+  }
+
+  public static final int LABELS_FIELD_NUMBER = 24;
+  private static final class LabelsDefaultEntryHolder {
+    static final com.google.protobuf.MapEntry<
+        java.lang.String, java.lang.String> defaultEntry =
+            com.google.protobuf.MapEntry
+            .<java.lang.String, java.lang.String>newDefaultInstance(
+                com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_Node_LabelsEntry_descriptor, 
+                com.google.protobuf.WireFormat.FieldType.STRING,
+                "",
+                com.google.protobuf.WireFormat.FieldType.STRING,
+                "");
+  }
+  private com.google.protobuf.MapField<
+      java.lang.String, java.lang.String> labels_;
+  private com.google.protobuf.MapField<java.lang.String, java.lang.String>
+  internalGetLabels() {
+    if (labels_ == null) {
+      return com.google.protobuf.MapField.emptyMapField(
+          LabelsDefaultEntryHolder.defaultEntry);
+    }
+    return labels_;
+  }
+
+  public int getLabelsCount() {
+    return internalGetLabels().getMap().size();
+  }
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+
+  @java.lang.Override
+  public boolean containsLabels(
+      java.lang.String key) {
+    if (key == null) { throw new NullPointerException("map key"); }
+    return internalGetLabels().getMap().containsKey(key);
+  }
+  /**
+   * Use {@link #getLabelsMap()} instead.
+   */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public java.util.Map<java.lang.String, java.lang.String> getLabels() {
+    return getLabelsMap();
+  }
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+  @java.lang.Override
+
+  public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
+    return internalGetLabels().getMap();
+  }
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+  @java.lang.Override
+
+  public java.lang.String getLabelsOrDefault(
+      java.lang.String key,
+      java.lang.String defaultValue) {
+    if (key == null) { throw new NullPointerException("map key"); }
+    java.util.Map<java.lang.String, java.lang.String> map =
+        internalGetLabels().getMap();
+    return map.containsKey(key) ? map.get(key) : defaultValue;
+  }
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+  @java.lang.Override
+
+  public java.lang.String getLabelsOrThrow(
+      java.lang.String key) {
+    if (key == null) { throw new NullPointerException("map key"); }
+    java.util.Map<java.lang.String, java.lang.String> map =
+        internalGetLabels().getMap();
+    if (!map.containsKey(key)) {
+      throw new java.lang.IllegalArgumentException();
+    }
+    return map.get(key);
+  }
+
+  public static final int USE_SERVICE_NETWORKING_FIELD_NUMBER = 27;
+  private boolean useServiceNetworking_;
+  /**
+   * <pre>
+   * Whether the VPC peering for the node is set up through Service Networking
+   * API. The VPC Peering should be set up before provisioning the node.
+   * If this field is set, cidr_block field should not be specified. If the
+   * network, that you want to peer the TPU Node to, is Shared VPC networks,
+   * the node must be created with this this field enabled.
+   * </pre>
+   *
+   * <code>bool use_service_networking = 27;</code>
+   * @return The useServiceNetworking.
+   */
+  @java.lang.Override
+  public boolean getUseServiceNetworking() {
+    return useServiceNetworking_;
+  }
+
+  public static final int API_VERSION_FIELD_NUMBER = 38;
+  private int apiVersion_;
+  /**
+   * <pre>
+   * Output only. The API version that created this Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The enum numeric value on the wire for apiVersion.
+   */
+  @java.lang.Override public int getApiVersionValue() {
+    return apiVersion_;
+  }
+  /**
+   * <pre>
+   * Output only. The API version that created this Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The apiVersion.
+   */
+  @java.lang.Override public com.google.cloud.tpu.v1.Node.ApiVersion getApiVersion() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.tpu.v1.Node.ApiVersion result = com.google.cloud.tpu.v1.Node.ApiVersion.valueOf(apiVersion_);
+    return result == null ? com.google.cloud.tpu.v1.Node.ApiVersion.UNRECOGNIZED : result;
+  }
+
+  public static final int SYMPTOMS_FIELD_NUMBER = 39;
+  private java.util.List<com.google.cloud.tpu.v1.Symptom> symptoms_;
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.tpu.v1.Symptom> getSymptomsList() {
+    return symptoms_;
+  }
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.tpu.v1.SymptomOrBuilder> 
+      getSymptomsOrBuilderList() {
+    return symptoms_;
+  }
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public int getSymptomsCount() {
+    return symptoms_.size();
+  }
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.Symptom getSymptoms(int index) {
+    return symptoms_.get(index);
+  }
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.SymptomOrBuilder getSymptomsOrBuilder(
+      int index) {
+    return symptoms_.get(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, description_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(acceleratorType_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 5, acceleratorType_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(ipAddress_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 8, ipAddress_);
+    }
+    if (state_ != com.google.cloud.tpu.v1.Node.State.STATE_UNSPECIFIED.getNumber()) {
+      output.writeEnum(9, state_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(healthDescription_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 10, healthDescription_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tensorflowVersion_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 11, tensorflowVersion_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(network_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 12, network_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cidrBlock_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 13, cidrBlock_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(port_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 14, port_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(serviceAccount_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 15, serviceAccount_);
+    }
+    if (createTime_ != null) {
+      output.writeMessage(16, getCreateTime());
+    }
+    if (schedulingConfig_ != null) {
+      output.writeMessage(17, getSchedulingConfig());
+    }
+    for (int i = 0; i < networkEndpoints_.size(); i++) {
+      output.writeMessage(21, networkEndpoints_.get(i));
+    }
+    if (health_ != com.google.cloud.tpu.v1.Node.Health.HEALTH_UNSPECIFIED.getNumber()) {
+      output.writeEnum(22, health_);
+    }
+    com.google.protobuf.GeneratedMessageV3
+      .serializeStringMapTo(
+        output,
+        internalGetLabels(),
+        LabelsDefaultEntryHolder.defaultEntry,
+        24);
+    if (useServiceNetworking_ != false) {
+      output.writeBool(27, useServiceNetworking_);
+    }
+    if (apiVersion_ != com.google.cloud.tpu.v1.Node.ApiVersion.API_VERSION_UNSPECIFIED.getNumber()) {
+      output.writeEnum(38, apiVersion_);
+    }
+    for (int i = 0; i < symptoms_.size(); i++) {
+      output.writeMessage(39, symptoms_.get(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, description_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(acceleratorType_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, acceleratorType_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(ipAddress_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(8, ipAddress_);
+    }
+    if (state_ != com.google.cloud.tpu.v1.Node.State.STATE_UNSPECIFIED.getNumber()) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeEnumSize(9, state_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(healthDescription_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(10, healthDescription_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tensorflowVersion_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(11, tensorflowVersion_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(network_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(12, network_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cidrBlock_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(13, cidrBlock_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(port_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(14, port_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(serviceAccount_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(15, serviceAccount_);
+    }
+    if (createTime_ != null) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(16, getCreateTime());
+    }
+    if (schedulingConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(17, getSchedulingConfig());
+    }
+    for (int i = 0; i < networkEndpoints_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(21, networkEndpoints_.get(i));
+    }
+    if (health_ != com.google.cloud.tpu.v1.Node.Health.HEALTH_UNSPECIFIED.getNumber()) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeEnumSize(22, health_);
+    }
+    for (java.util.Map.Entry<java.lang.String, java.lang.String> entry
+         : internalGetLabels().getMap().entrySet()) {
+      com.google.protobuf.MapEntry<java.lang.String, java.lang.String>
+      labels__ = LabelsDefaultEntryHolder.defaultEntry.newBuilderForType()
+          .setKey(entry.getKey())
+          .setValue(entry.getValue())
+          .build();
+      size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(24, labels__);
+    }
+    if (useServiceNetworking_ != false) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeBoolSize(27, useServiceNetworking_);
+    }
+    if (apiVersion_ != com.google.cloud.tpu.v1.Node.ApiVersion.API_VERSION_UNSPECIFIED.getNumber()) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeEnumSize(38, apiVersion_);
+    }
+    for (int i = 0; i < symptoms_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(39, symptoms_.get(i));
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v1.Node)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v1.Node other = (com.google.cloud.tpu.v1.Node) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!getDescription()
+        .equals(other.getDescription())) return false;
+    if (!getAcceleratorType()
+        .equals(other.getAcceleratorType())) return false;
+    if (!getIpAddress()
+        .equals(other.getIpAddress())) return false;
+    if (!getPort()
+        .equals(other.getPort())) return false;
+    if (state_ != other.state_) return false;
+    if (!getHealthDescription()
+        .equals(other.getHealthDescription())) return false;
+    if (!getTensorflowVersion()
+        .equals(other.getTensorflowVersion())) return false;
+    if (!getNetwork()
+        .equals(other.getNetwork())) return false;
+    if (!getCidrBlock()
+        .equals(other.getCidrBlock())) return false;
+    if (!getServiceAccount()
+        .equals(other.getServiceAccount())) return false;
+    if (hasCreateTime() != other.hasCreateTime()) return false;
+    if (hasCreateTime()) {
+      if (!getCreateTime()
+          .equals(other.getCreateTime())) return false;
+    }
+    if (hasSchedulingConfig() != other.hasSchedulingConfig()) return false;
+    if (hasSchedulingConfig()) {
+      if (!getSchedulingConfig()
+          .equals(other.getSchedulingConfig())) return false;
+    }
+    if (!getNetworkEndpointsList()
+        .equals(other.getNetworkEndpointsList())) return false;
+    if (health_ != other.health_) return false;
+    if (!internalGetLabels().equals(
+        other.internalGetLabels())) return false;
+    if (getUseServiceNetworking()
+        != other.getUseServiceNetworking()) return false;
+    if (apiVersion_ != other.apiVersion_) return false;
+    if (!getSymptomsList()
+        .equals(other.getSymptomsList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + DESCRIPTION_FIELD_NUMBER;
+    hash = (53 * hash) + getDescription().hashCode();
+    hash = (37 * hash) + ACCELERATOR_TYPE_FIELD_NUMBER;
+    hash = (53 * hash) + getAcceleratorType().hashCode();
+    hash = (37 * hash) + IP_ADDRESS_FIELD_NUMBER;
+    hash = (53 * hash) + getIpAddress().hashCode();
+    hash = (37 * hash) + PORT_FIELD_NUMBER;
+    hash = (53 * hash) + getPort().hashCode();
+    hash = (37 * hash) + STATE_FIELD_NUMBER;
+    hash = (53 * hash) + state_;
+    hash = (37 * hash) + HEALTH_DESCRIPTION_FIELD_NUMBER;
+    hash = (53 * hash) + getHealthDescription().hashCode();
+    hash = (37 * hash) + TENSORFLOW_VERSION_FIELD_NUMBER;
+    hash = (53 * hash) + getTensorflowVersion().hashCode();
+    hash = (37 * hash) + NETWORK_FIELD_NUMBER;
+    hash = (53 * hash) + getNetwork().hashCode();
+    hash = (37 * hash) + CIDR_BLOCK_FIELD_NUMBER;
+    hash = (53 * hash) + getCidrBlock().hashCode();
+    hash = (37 * hash) + SERVICE_ACCOUNT_FIELD_NUMBER;
+    hash = (53 * hash) + getServiceAccount().hashCode();
+    if (hasCreateTime()) {
+      hash = (37 * hash) + CREATE_TIME_FIELD_NUMBER;
+      hash = (53 * hash) + getCreateTime().hashCode();
+    }
+    if (hasSchedulingConfig()) {
+      hash = (37 * hash) + SCHEDULING_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getSchedulingConfig().hashCode();
+    }
+    if (getNetworkEndpointsCount() > 0) {
+      hash = (37 * hash) + NETWORK_ENDPOINTS_FIELD_NUMBER;
+      hash = (53 * hash) + getNetworkEndpointsList().hashCode();
+    }
+    hash = (37 * hash) + HEALTH_FIELD_NUMBER;
+    hash = (53 * hash) + health_;
+    if (!internalGetLabels().getMap().isEmpty()) {
+      hash = (37 * hash) + LABELS_FIELD_NUMBER;
+      hash = (53 * hash) + internalGetLabels().hashCode();
+    }
+    hash = (37 * hash) + USE_SERVICE_NETWORKING_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
+        getUseServiceNetworking());
+    hash = (37 * hash) + API_VERSION_FIELD_NUMBER;
+    hash = (53 * hash) + apiVersion_;
+    if (getSymptomsCount() > 0) {
+      hash = (37 * hash) + SYMPTOMS_FIELD_NUMBER;
+      hash = (53 * hash) + getSymptomsList().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v1.Node parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.Node parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.Node parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.Node parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.Node parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.Node parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.Node parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.Node parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.Node parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.Node parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.Node parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.Node parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v1.Node prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A TPU instance.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.Node}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.Node)
+      com.google.cloud.tpu.v1.NodeOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
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+    }
+
+    // Construct using com.google.cloud.tpu.v1.Node.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
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+      description_ = "";
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+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_Node_descriptor;
+    }
+
+    @java.lang.Override
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+    @java.lang.Override
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+      result.labels_ = internalGetLabels();
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+      if (symptomsBuilder_ == null) {
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+        result.symptoms_ = symptomsBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
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+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
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+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v1.Node) {
+        return mergeFrom((com.google.cloud.tpu.v1.Node)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v1.Node other) {
+      if (other == com.google.cloud.tpu.v1.Node.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getDescription().isEmpty()) {
+        description_ = other.description_;
+        onChanged();
+      }
+      if (!other.getAcceleratorType().isEmpty()) {
+        acceleratorType_ = other.acceleratorType_;
+        onChanged();
+      }
+      if (!other.getIpAddress().isEmpty()) {
+        ipAddress_ = other.ipAddress_;
+        onChanged();
+      }
+      if (!other.getPort().isEmpty()) {
+        port_ = other.port_;
+        onChanged();
+      }
+      if (other.state_ != 0) {
+        setStateValue(other.getStateValue());
+      }
+      if (!other.getHealthDescription().isEmpty()) {
+        healthDescription_ = other.healthDescription_;
+        onChanged();
+      }
+      if (!other.getTensorflowVersion().isEmpty()) {
+        tensorflowVersion_ = other.tensorflowVersion_;
+        onChanged();
+      }
+      if (!other.getNetwork().isEmpty()) {
+        network_ = other.network_;
+        onChanged();
+      }
+      if (!other.getCidrBlock().isEmpty()) {
+        cidrBlock_ = other.cidrBlock_;
+        onChanged();
+      }
+      if (!other.getServiceAccount().isEmpty()) {
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+        onChanged();
+      }
+      if (other.hasCreateTime()) {
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+        if (!other.networkEndpoints_.isEmpty()) {
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+            networkEndpointsBuilder_.addAllMessages(other.networkEndpoints_);
+          }
+        }
+      }
+      if (other.health_ != 0) {
+        setHealthValue(other.getHealthValue());
+      }
+      internalGetMutableLabels().mergeFrom(
+          other.internalGetLabels());
+      if (other.getUseServiceNetworking() != false) {
+        setUseServiceNetworking(other.getUseServiceNetworking());
+      }
+      if (other.apiVersion_ != 0) {
+        setApiVersionValue(other.getApiVersionValue());
+      }
+      if (symptomsBuilder_ == null) {
+        if (!other.symptoms_.isEmpty()) {
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+            bitField0_ = (bitField0_ & ~0x00000004);
+          } else {
+            ensureSymptomsIsMutable();
+            symptoms_.addAll(other.symptoms_);
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+          onChanged();
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+        if (!other.symptoms_.isEmpty()) {
+          if (symptomsBuilder_.isEmpty()) {
+            symptomsBuilder_.dispose();
+            symptomsBuilder_ = null;
+            symptoms_ = other.symptoms_;
+            bitField0_ = (bitField0_ & ~0x00000004);
+            symptomsBuilder_ = 
+              com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
+                 getSymptomsFieldBuilder() : null;
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+            symptomsBuilder_.addAllMessages(other.symptoms_);
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.Node parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.Node) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+    private int bitField0_;
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * Output only. Immutable. The name of the TPU
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. Immutable. The name of the TPU
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. Immutable. The name of the TPU
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. Immutable. The name of the TPU
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. Immutable. The name of the TPU
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object description_ = "";
+    /**
+     * <pre>
+     * The user-supplied description of the TPU. Maximum of 512 characters.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     * @return The description.
+     */
+    public java.lang.String getDescription() {
+      java.lang.Object ref = description_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        description_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The user-supplied description of the TPU. Maximum of 512 characters.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     * @return The bytes for description.
+     */
+    public com.google.protobuf.ByteString
+        getDescriptionBytes() {
+      java.lang.Object ref = description_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        description_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The user-supplied description of the TPU. Maximum of 512 characters.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     * @param value The description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescription(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      description_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The user-supplied description of the TPU. Maximum of 512 characters.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearDescription() {
+      
+      description_ = getDefaultInstance().getDescription();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The user-supplied description of the TPU. Maximum of 512 characters.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     * @param value The bytes for description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescriptionBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      description_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object acceleratorType_ = "";
+    /**
+     * <pre>
+     * Required. The type of hardware accelerators associated with this node.
+     * </pre>
+     *
+     * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return The acceleratorType.
+     */
+    public java.lang.String getAcceleratorType() {
+      java.lang.Object ref = acceleratorType_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        acceleratorType_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The type of hardware accelerators associated with this node.
+     * </pre>
+     *
+     * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return The bytes for acceleratorType.
+     */
+    public com.google.protobuf.ByteString
+        getAcceleratorTypeBytes() {
+      java.lang.Object ref = acceleratorType_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        acceleratorType_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The type of hardware accelerators associated with this node.
+     * </pre>
+     *
+     * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param value The acceleratorType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAcceleratorType(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      acceleratorType_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The type of hardware accelerators associated with this node.
+     * </pre>
+     *
+     * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearAcceleratorType() {
+      
+      acceleratorType_ = getDefaultInstance().getAcceleratorType();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The type of hardware accelerators associated with this node.
+     * </pre>
+     *
+     * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param value The bytes for acceleratorType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAcceleratorTypeBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      acceleratorType_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object ipAddress_ = "";
+    /**
+     * <pre>
+     * Output only. DEPRECATED! Use network_endpoints instead.
+     * The network address for the TPU Node as visible to Compute Engine
+     * instances.
+     * </pre>
+     *
+     * <code>string ip_address = 8 [deprecated = true];</code>
+     * @deprecated google.cloud.tpu.v1.Node.ip_address is deprecated.
+     *     See google/cloud/tpu/v1/cloud_tpu.proto;l=275
+     * @return The ipAddress.
+     */
+    @java.lang.Deprecated public java.lang.String getIpAddress() {
+      java.lang.Object ref = ipAddress_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        ipAddress_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. DEPRECATED! Use network_endpoints instead.
+     * The network address for the TPU Node as visible to Compute Engine
+     * instances.
+     * </pre>
+     *
+     * <code>string ip_address = 8 [deprecated = true];</code>
+     * @deprecated google.cloud.tpu.v1.Node.ip_address is deprecated.
+     *     See google/cloud/tpu/v1/cloud_tpu.proto;l=275
+     * @return The bytes for ipAddress.
+     */
+    @java.lang.Deprecated public com.google.protobuf.ByteString
+        getIpAddressBytes() {
+      java.lang.Object ref = ipAddress_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        ipAddress_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. DEPRECATED! Use network_endpoints instead.
+     * The network address for the TPU Node as visible to Compute Engine
+     * instances.
+     * </pre>
+     *
+     * <code>string ip_address = 8 [deprecated = true];</code>
+     * @deprecated google.cloud.tpu.v1.Node.ip_address is deprecated.
+     *     See google/cloud/tpu/v1/cloud_tpu.proto;l=275
+     * @param value The ipAddress to set.
+     * @return This builder for chaining.
+     */
+    @java.lang.Deprecated public Builder setIpAddress(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      ipAddress_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. DEPRECATED! Use network_endpoints instead.
+     * The network address for the TPU Node as visible to Compute Engine
+     * instances.
+     * </pre>
+     *
+     * <code>string ip_address = 8 [deprecated = true];</code>
+     * @deprecated google.cloud.tpu.v1.Node.ip_address is deprecated.
+     *     See google/cloud/tpu/v1/cloud_tpu.proto;l=275
+     * @return This builder for chaining.
+     */
+    @java.lang.Deprecated public Builder clearIpAddress() {
+      
+      ipAddress_ = getDefaultInstance().getIpAddress();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. DEPRECATED! Use network_endpoints instead.
+     * The network address for the TPU Node as visible to Compute Engine
+     * instances.
+     * </pre>
+     *
+     * <code>string ip_address = 8 [deprecated = true];</code>
+     * @deprecated google.cloud.tpu.v1.Node.ip_address is deprecated.
+     *     See google/cloud/tpu/v1/cloud_tpu.proto;l=275
+     * @param value The bytes for ipAddress to set.
+     * @return This builder for chaining.
+     */
+    @java.lang.Deprecated public Builder setIpAddressBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      ipAddress_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object port_ = "";
+    /**
+     * <pre>
+     * Output only. DEPRECATED! Use network_endpoints instead.
+     * The network port for the TPU Node as visible to Compute Engine instances.
+     * </pre>
+     *
+     * <code>string port = 14 [deprecated = true];</code>
+     * @deprecated google.cloud.tpu.v1.Node.port is deprecated.
+     *     See google/cloud/tpu/v1/cloud_tpu.proto;l=279
+     * @return The port.
+     */
+    @java.lang.Deprecated public java.lang.String getPort() {
+      java.lang.Object ref = port_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        port_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. DEPRECATED! Use network_endpoints instead.
+     * The network port for the TPU Node as visible to Compute Engine instances.
+     * </pre>
+     *
+     * <code>string port = 14 [deprecated = true];</code>
+     * @deprecated google.cloud.tpu.v1.Node.port is deprecated.
+     *     See google/cloud/tpu/v1/cloud_tpu.proto;l=279
+     * @return The bytes for port.
+     */
+    @java.lang.Deprecated public com.google.protobuf.ByteString
+        getPortBytes() {
+      java.lang.Object ref = port_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        port_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. DEPRECATED! Use network_endpoints instead.
+     * The network port for the TPU Node as visible to Compute Engine instances.
+     * </pre>
+     *
+     * <code>string port = 14 [deprecated = true];</code>
+     * @deprecated google.cloud.tpu.v1.Node.port is deprecated.
+     *     See google/cloud/tpu/v1/cloud_tpu.proto;l=279
+     * @param value The port to set.
+     * @return This builder for chaining.
+     */
+    @java.lang.Deprecated public Builder setPort(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      port_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. DEPRECATED! Use network_endpoints instead.
+     * The network port for the TPU Node as visible to Compute Engine instances.
+     * </pre>
+     *
+     * <code>string port = 14 [deprecated = true];</code>
+     * @deprecated google.cloud.tpu.v1.Node.port is deprecated.
+     *     See google/cloud/tpu/v1/cloud_tpu.proto;l=279
+     * @return This builder for chaining.
+     */
+    @java.lang.Deprecated public Builder clearPort() {
+      
+      port_ = getDefaultInstance().getPort();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. DEPRECATED! Use network_endpoints instead.
+     * The network port for the TPU Node as visible to Compute Engine instances.
+     * </pre>
+     *
+     * <code>string port = 14 [deprecated = true];</code>
+     * @deprecated google.cloud.tpu.v1.Node.port is deprecated.
+     *     See google/cloud/tpu/v1/cloud_tpu.proto;l=279
+     * @param value The bytes for port to set.
+     * @return This builder for chaining.
+     */
+    @java.lang.Deprecated public Builder setPortBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      port_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int state_ = 0;
+    /**
+     * <pre>
+     * Output only. The current state for the TPU Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The enum numeric value on the wire for state.
+     */
+    @java.lang.Override public int getStateValue() {
+      return state_;
+    }
+    /**
+     * <pre>
+     * Output only. The current state for the TPU Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The enum numeric value on the wire for state to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStateValue(int value) {
+      
+      state_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The current state for the TPU Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The state.
+     */
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.Node.State getState() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.tpu.v1.Node.State result = com.google.cloud.tpu.v1.Node.State.valueOf(state_);
+      return result == null ? com.google.cloud.tpu.v1.Node.State.UNRECOGNIZED : result;
+    }
+    /**
+     * <pre>
+     * Output only. The current state for the TPU Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The state to set.
+     * @return This builder for chaining.
+     */
+    public Builder setState(com.google.cloud.tpu.v1.Node.State value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      
+      state_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The current state for the TPU Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearState() {
+      
+      state_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object healthDescription_ = "";
+    /**
+     * <pre>
+     * Output only. If this field is populated, it contains a description of why the TPU Node
+     * is unhealthy.
+     * </pre>
+     *
+     * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The healthDescription.
+     */
+    public java.lang.String getHealthDescription() {
+      java.lang.Object ref = healthDescription_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        healthDescription_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. If this field is populated, it contains a description of why the TPU Node
+     * is unhealthy.
+     * </pre>
+     *
+     * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The bytes for healthDescription.
+     */
+    public com.google.protobuf.ByteString
+        getHealthDescriptionBytes() {
+      java.lang.Object ref = healthDescription_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        healthDescription_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. If this field is populated, it contains a description of why the TPU Node
+     * is unhealthy.
+     * </pre>
+     *
+     * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The healthDescription to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHealthDescription(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      healthDescription_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. If this field is populated, it contains a description of why the TPU Node
+     * is unhealthy.
+     * </pre>
+     *
+     * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearHealthDescription() {
+      
+      healthDescription_ = getDefaultInstance().getHealthDescription();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. If this field is populated, it contains a description of why the TPU Node
+     * is unhealthy.
+     * </pre>
+     *
+     * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The bytes for healthDescription to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHealthDescriptionBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      healthDescription_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object tensorflowVersion_ = "";
+    /**
+     * <pre>
+     * Required. The version of Tensorflow running in the Node.
+     * </pre>
+     *
+     * <code>string tensorflow_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return The tensorflowVersion.
+     */
+    public java.lang.String getTensorflowVersion() {
+      java.lang.Object ref = tensorflowVersion_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        tensorflowVersion_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The version of Tensorflow running in the Node.
+     * </pre>
+     *
+     * <code>string tensorflow_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return The bytes for tensorflowVersion.
+     */
+    public com.google.protobuf.ByteString
+        getTensorflowVersionBytes() {
+      java.lang.Object ref = tensorflowVersion_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        tensorflowVersion_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The version of Tensorflow running in the Node.
+     * </pre>
+     *
+     * <code>string tensorflow_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param value The tensorflowVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTensorflowVersion(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      tensorflowVersion_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The version of Tensorflow running in the Node.
+     * </pre>
+     *
+     * <code>string tensorflow_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearTensorflowVersion() {
+      
+      tensorflowVersion_ = getDefaultInstance().getTensorflowVersion();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The version of Tensorflow running in the Node.
+     * </pre>
+     *
+     * <code>string tensorflow_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param value The bytes for tensorflowVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTensorflowVersionBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      tensorflowVersion_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object network_ = "";
+    /**
+     * <pre>
+     * The name of a network they wish to peer the TPU node to. It must be a
+     * preexisting Compute Engine network inside of the project on which this API
+     * has been activated. If none is provided, "default" will be used.
+     * </pre>
+     *
+     * <code>string network = 12;</code>
+     * @return The network.
+     */
+    public java.lang.String getNetwork() {
+      java.lang.Object ref = network_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        network_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The name of a network they wish to peer the TPU node to. It must be a
+     * preexisting Compute Engine network inside of the project on which this API
+     * has been activated. If none is provided, "default" will be used.
+     * </pre>
+     *
+     * <code>string network = 12;</code>
+     * @return The bytes for network.
+     */
+    public com.google.protobuf.ByteString
+        getNetworkBytes() {
+      java.lang.Object ref = network_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        network_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The name of a network they wish to peer the TPU node to. It must be a
+     * preexisting Compute Engine network inside of the project on which this API
+     * has been activated. If none is provided, "default" will be used.
+     * </pre>
+     *
+     * <code>string network = 12;</code>
+     * @param value The network to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNetwork(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      network_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The name of a network they wish to peer the TPU node to. It must be a
+     * preexisting Compute Engine network inside of the project on which this API
+     * has been activated. If none is provided, "default" will be used.
+     * </pre>
+     *
+     * <code>string network = 12;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNetwork() {
+      
+      network_ = getDefaultInstance().getNetwork();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The name of a network they wish to peer the TPU node to. It must be a
+     * preexisting Compute Engine network inside of the project on which this API
+     * has been activated. If none is provided, "default" will be used.
+     * </pre>
+     *
+     * <code>string network = 12;</code>
+     * @param value The bytes for network to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNetworkBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      network_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object cidrBlock_ = "";
+    /**
+     * <pre>
+     * The CIDR block that the TPU node will use when selecting an IP address.
+     * This CIDR block must be a /29 block; the Compute Engine networks API
+     * forbids a smaller block, and using a larger block would be wasteful (a
+     * node can only consume one IP address). Errors will occur if the CIDR block
+     * has already been used for a currently existing TPU node, the CIDR block
+     * conflicts with any subnetworks in the user's provided network, or the
+     * provided network is peered with another network that is using that CIDR
+     * block.
+     * </pre>
+     *
+     * <code>string cidr_block = 13;</code>
+     * @return The cidrBlock.
+     */
+    public java.lang.String getCidrBlock() {
+      java.lang.Object ref = cidrBlock_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        cidrBlock_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The CIDR block that the TPU node will use when selecting an IP address.
+     * This CIDR block must be a /29 block; the Compute Engine networks API
+     * forbids a smaller block, and using a larger block would be wasteful (a
+     * node can only consume one IP address). Errors will occur if the CIDR block
+     * has already been used for a currently existing TPU node, the CIDR block
+     * conflicts with any subnetworks in the user's provided network, or the
+     * provided network is peered with another network that is using that CIDR
+     * block.
+     * </pre>
+     *
+     * <code>string cidr_block = 13;</code>
+     * @return The bytes for cidrBlock.
+     */
+    public com.google.protobuf.ByteString
+        getCidrBlockBytes() {
+      java.lang.Object ref = cidrBlock_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        cidrBlock_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The CIDR block that the TPU node will use when selecting an IP address.
+     * This CIDR block must be a /29 block; the Compute Engine networks API
+     * forbids a smaller block, and using a larger block would be wasteful (a
+     * node can only consume one IP address). Errors will occur if the CIDR block
+     * has already been used for a currently existing TPU node, the CIDR block
+     * conflicts with any subnetworks in the user's provided network, or the
+     * provided network is peered with another network that is using that CIDR
+     * block.
+     * </pre>
+     *
+     * <code>string cidr_block = 13;</code>
+     * @param value The cidrBlock to set.
+     * @return This builder for chaining.
+     */
+    public Builder setCidrBlock(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      cidrBlock_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The CIDR block that the TPU node will use when selecting an IP address.
+     * This CIDR block must be a /29 block; the Compute Engine networks API
+     * forbids a smaller block, and using a larger block would be wasteful (a
+     * node can only consume one IP address). Errors will occur if the CIDR block
+     * has already been used for a currently existing TPU node, the CIDR block
+     * conflicts with any subnetworks in the user's provided network, or the
+     * provided network is peered with another network that is using that CIDR
+     * block.
+     * </pre>
+     *
+     * <code>string cidr_block = 13;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearCidrBlock() {
+      
+      cidrBlock_ = getDefaultInstance().getCidrBlock();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The CIDR block that the TPU node will use when selecting an IP address.
+     * This CIDR block must be a /29 block; the Compute Engine networks API
+     * forbids a smaller block, and using a larger block would be wasteful (a
+     * node can only consume one IP address). Errors will occur if the CIDR block
+     * has already been used for a currently existing TPU node, the CIDR block
+     * conflicts with any subnetworks in the user's provided network, or the
+     * provided network is peered with another network that is using that CIDR
+     * block.
+     * </pre>
+     *
+     * <code>string cidr_block = 13;</code>
+     * @param value The bytes for cidrBlock to set.
+     * @return This builder for chaining.
+     */
+    public Builder setCidrBlockBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      cidrBlock_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object serviceAccount_ = "";
+    /**
+     * <pre>
+     * Output only. The service account used to run the tensor flow services within the node.
+     * To share resources, including Google Cloud Storage data, with the
+     * Tensorflow job running in the Node, this account must have permissions to
+     * that data.
+     * </pre>
+     *
+     * <code>string service_account = 15 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The serviceAccount.
+     */
+    public java.lang.String getServiceAccount() {
+      java.lang.Object ref = serviceAccount_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        serviceAccount_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The service account used to run the tensor flow services within the node.
+     * To share resources, including Google Cloud Storage data, with the
+     * Tensorflow job running in the Node, this account must have permissions to
+     * that data.
+     * </pre>
+     *
+     * <code>string service_account = 15 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The bytes for serviceAccount.
+     */
+    public com.google.protobuf.ByteString
+        getServiceAccountBytes() {
+      java.lang.Object ref = serviceAccount_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        serviceAccount_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The service account used to run the tensor flow services within the node.
+     * To share resources, including Google Cloud Storage data, with the
+     * Tensorflow job running in the Node, this account must have permissions to
+     * that data.
+     * </pre>
+     *
+     * <code>string service_account = 15 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The serviceAccount to set.
+     * @return This builder for chaining.
+     */
+    public Builder setServiceAccount(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      serviceAccount_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The service account used to run the tensor flow services within the node.
+     * To share resources, including Google Cloud Storage data, with the
+     * Tensorflow job running in the Node, this account must have permissions to
+     * that data.
+     * </pre>
+     *
+     * <code>string service_account = 15 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearServiceAccount() {
+      
+      serviceAccount_ = getDefaultInstance().getServiceAccount();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The service account used to run the tensor flow services within the node.
+     * To share resources, including Google Cloud Storage data, with the
+     * Tensorflow job running in the Node, this account must have permissions to
+     * that data.
+     * </pre>
+     *
+     * <code>string service_account = 15 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The bytes for serviceAccount to set.
+     * @return This builder for chaining.
+     */
+    public Builder setServiceAccountBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      serviceAccount_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.Timestamp createTime_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> createTimeBuilder_;
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return Whether the createTime field is set.
+     */
+    public boolean hasCreateTime() {
+      return createTimeBuilder_ != null || createTime_ != null;
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The createTime.
+     */
+    public com.google.protobuf.Timestamp getCreateTime() {
+      if (createTimeBuilder_ == null) {
+        return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+      } else {
+        return createTimeBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder setCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        createTime_ = value;
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder setCreateTime(
+        com.google.protobuf.Timestamp.Builder builderForValue) {
+      if (createTimeBuilder_ == null) {
+        createTime_ = builderForValue.build();
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder mergeCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (createTime_ != null) {
+          createTime_ =
+            com.google.protobuf.Timestamp.newBuilder(createTime_).mergeFrom(value).buildPartial();
+        } else {
+          createTime_ = value;
+        }
+        onChanged();
+      } else {
+        createTimeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder clearCreateTime() {
+      if (createTimeBuilder_ == null) {
+        createTime_ = null;
+        onChanged();
+      } else {
+        createTime_ = null;
+        createTimeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.protobuf.Timestamp.Builder getCreateTimeBuilder() {
+      
+      onChanged();
+      return getCreateTimeFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+      if (createTimeBuilder_ != null) {
+        return createTimeBuilder_.getMessageOrBuilder();
+      } else {
+        return createTime_ == null ?
+            com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
+        getCreateTimeFieldBuilder() {
+      if (createTimeBuilder_ == null) {
+        createTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
+                getCreateTime(),
+                getParentForChildren(),
+                isClean());
+        createTime_ = null;
+      }
+      return createTimeBuilder_;
+    }
+
+    private com.google.cloud.tpu.v1.SchedulingConfig schedulingConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v1.SchedulingConfig, com.google.cloud.tpu.v1.SchedulingConfig.Builder, com.google.cloud.tpu.v1.SchedulingConfigOrBuilder> schedulingConfigBuilder_;
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+     * @return Whether the schedulingConfig field is set.
+     */
+    public boolean hasSchedulingConfig() {
+      return schedulingConfigBuilder_ != null || schedulingConfig_ != null;
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+     * @return The schedulingConfig.
+     */
+    public com.google.cloud.tpu.v1.SchedulingConfig getSchedulingConfig() {
+      if (schedulingConfigBuilder_ == null) {
+        return schedulingConfig_ == null ? com.google.cloud.tpu.v1.SchedulingConfig.getDefaultInstance() : schedulingConfig_;
+      } else {
+        return schedulingConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    public Builder setSchedulingConfig(com.google.cloud.tpu.v1.SchedulingConfig value) {
+      if (schedulingConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        schedulingConfig_ = value;
+        onChanged();
+      } else {
+        schedulingConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    public Builder setSchedulingConfig(
+        com.google.cloud.tpu.v1.SchedulingConfig.Builder builderForValue) {
+      if (schedulingConfigBuilder_ == null) {
+        schedulingConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        schedulingConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    public Builder mergeSchedulingConfig(com.google.cloud.tpu.v1.SchedulingConfig value) {
+      if (schedulingConfigBuilder_ == null) {
+        if (schedulingConfig_ != null) {
+          schedulingConfig_ =
+            com.google.cloud.tpu.v1.SchedulingConfig.newBuilder(schedulingConfig_).mergeFrom(value).buildPartial();
+        } else {
+          schedulingConfig_ = value;
+        }
+        onChanged();
+      } else {
+        schedulingConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    public Builder clearSchedulingConfig() {
+      if (schedulingConfigBuilder_ == null) {
+        schedulingConfig_ = null;
+        onChanged();
+      } else {
+        schedulingConfig_ = null;
+        schedulingConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    public com.google.cloud.tpu.v1.SchedulingConfig.Builder getSchedulingConfigBuilder() {
+      
+      onChanged();
+      return getSchedulingConfigFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    public com.google.cloud.tpu.v1.SchedulingConfigOrBuilder getSchedulingConfigOrBuilder() {
+      if (schedulingConfigBuilder_ != null) {
+        return schedulingConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return schedulingConfig_ == null ?
+            com.google.cloud.tpu.v1.SchedulingConfig.getDefaultInstance() : schedulingConfig_;
+      }
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v1.SchedulingConfig, com.google.cloud.tpu.v1.SchedulingConfig.Builder, com.google.cloud.tpu.v1.SchedulingConfigOrBuilder> 
+        getSchedulingConfigFieldBuilder() {
+      if (schedulingConfigBuilder_ == null) {
+        schedulingConfigBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.tpu.v1.SchedulingConfig, com.google.cloud.tpu.v1.SchedulingConfig.Builder, com.google.cloud.tpu.v1.SchedulingConfigOrBuilder>(
+                getSchedulingConfig(),
+                getParentForChildren(),
+                isClean());
+        schedulingConfig_ = null;
+      }
+      return schedulingConfigBuilder_;
+    }
+
+    private java.util.List<com.google.cloud.tpu.v1.NetworkEndpoint> networkEndpoints_ =
+      java.util.Collections.emptyList();
+    private void ensureNetworkEndpointsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        networkEndpoints_ = new java.util.ArrayList<com.google.cloud.tpu.v1.NetworkEndpoint>(networkEndpoints_);
+        bitField0_ |= 0x00000001;
+       }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v1.NetworkEndpoint, com.google.cloud.tpu.v1.NetworkEndpoint.Builder, com.google.cloud.tpu.v1.NetworkEndpointOrBuilder> networkEndpointsBuilder_;
+
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v1.NetworkEndpoint> getNetworkEndpointsList() {
+      if (networkEndpointsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(networkEndpoints_);
+      } else {
+        return networkEndpointsBuilder_.getMessageList();
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public int getNetworkEndpointsCount() {
+      if (networkEndpointsBuilder_ == null) {
+        return networkEndpoints_.size();
+      } else {
+        return networkEndpointsBuilder_.getCount();
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v1.NetworkEndpoint getNetworkEndpoints(int index) {
+      if (networkEndpointsBuilder_ == null) {
+        return networkEndpoints_.get(index);
+      } else {
+        return networkEndpointsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder setNetworkEndpoints(
+        int index, com.google.cloud.tpu.v1.NetworkEndpoint value) {
+      if (networkEndpointsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.set(index, value);
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder setNetworkEndpoints(
+        int index, com.google.cloud.tpu.v1.NetworkEndpoint.Builder builderForValue) {
+      if (networkEndpointsBuilder_ == null) {
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addNetworkEndpoints(com.google.cloud.tpu.v1.NetworkEndpoint value) {
+      if (networkEndpointsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.add(value);
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addNetworkEndpoints(
+        int index, com.google.cloud.tpu.v1.NetworkEndpoint value) {
+      if (networkEndpointsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.add(index, value);
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addNetworkEndpoints(
+        com.google.cloud.tpu.v1.NetworkEndpoint.Builder builderForValue) {
+      if (networkEndpointsBuilder_ == null) {
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.add(builderForValue.build());
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addNetworkEndpoints(
+        int index, com.google.cloud.tpu.v1.NetworkEndpoint.Builder builderForValue) {
+      if (networkEndpointsBuilder_ == null) {
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addAllNetworkEndpoints(
+        java.lang.Iterable<? extends com.google.cloud.tpu.v1.NetworkEndpoint> values) {
+      if (networkEndpointsBuilder_ == null) {
+        ensureNetworkEndpointsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, networkEndpoints_);
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder clearNetworkEndpoints() {
+      if (networkEndpointsBuilder_ == null) {
+        networkEndpoints_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder removeNetworkEndpoints(int index) {
+      if (networkEndpointsBuilder_ == null) {
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.remove(index);
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v1.NetworkEndpoint.Builder getNetworkEndpointsBuilder(
+        int index) {
+      return getNetworkEndpointsFieldBuilder().getBuilder(index);
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v1.NetworkEndpointOrBuilder getNetworkEndpointsOrBuilder(
+        int index) {
+      if (networkEndpointsBuilder_ == null) {
+        return networkEndpoints_.get(index);  } else {
+        return networkEndpointsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public java.util.List<? extends com.google.cloud.tpu.v1.NetworkEndpointOrBuilder> 
+         getNetworkEndpointsOrBuilderList() {
+      if (networkEndpointsBuilder_ != null) {
+        return networkEndpointsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(networkEndpoints_);
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v1.NetworkEndpoint.Builder addNetworkEndpointsBuilder() {
+      return getNetworkEndpointsFieldBuilder().addBuilder(
+          com.google.cloud.tpu.v1.NetworkEndpoint.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v1.NetworkEndpoint.Builder addNetworkEndpointsBuilder(
+        int index) {
+      return getNetworkEndpointsFieldBuilder().addBuilder(
+          index, com.google.cloud.tpu.v1.NetworkEndpoint.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that Tensorflow clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v1.NetworkEndpoint.Builder> 
+         getNetworkEndpointsBuilderList() {
+      return getNetworkEndpointsFieldBuilder().getBuilderList();
+    }
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v1.NetworkEndpoint, com.google.cloud.tpu.v1.NetworkEndpoint.Builder, com.google.cloud.tpu.v1.NetworkEndpointOrBuilder> 
+        getNetworkEndpointsFieldBuilder() {
+      if (networkEndpointsBuilder_ == null) {
+        networkEndpointsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.tpu.v1.NetworkEndpoint, com.google.cloud.tpu.v1.NetworkEndpoint.Builder, com.google.cloud.tpu.v1.NetworkEndpointOrBuilder>(
+                networkEndpoints_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        networkEndpoints_ = null;
+      }
+      return networkEndpointsBuilder_;
+    }
+
+    private int health_ = 0;
+    /**
+     * <pre>
+     * The health status of the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.Health health = 22;</code>
+     * @return The enum numeric value on the wire for health.
+     */
+    @java.lang.Override public int getHealthValue() {
+      return health_;
+    }
+    /**
+     * <pre>
+     * The health status of the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.Health health = 22;</code>
+     * @param value The enum numeric value on the wire for health to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHealthValue(int value) {
+      
+      health_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The health status of the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.Health health = 22;</code>
+     * @return The health.
+     */
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.Node.Health getHealth() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.tpu.v1.Node.Health result = com.google.cloud.tpu.v1.Node.Health.valueOf(health_);
+      return result == null ? com.google.cloud.tpu.v1.Node.Health.UNRECOGNIZED : result;
+    }
+    /**
+     * <pre>
+     * The health status of the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.Health health = 22;</code>
+     * @param value The health to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHealth(com.google.cloud.tpu.v1.Node.Health value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      
+      health_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The health status of the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.Health health = 22;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearHealth() {
+      
+      health_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.MapField<
+        java.lang.String, java.lang.String> labels_;
+    private com.google.protobuf.MapField<java.lang.String, java.lang.String>
+    internalGetLabels() {
+      if (labels_ == null) {
+        return com.google.protobuf.MapField.emptyMapField(
+            LabelsDefaultEntryHolder.defaultEntry);
+      }
+      return labels_;
+    }
+    private com.google.protobuf.MapField<java.lang.String, java.lang.String>
+    internalGetMutableLabels() {
+      onChanged();;
+      if (labels_ == null) {
+        labels_ = com.google.protobuf.MapField.newMapField(
+            LabelsDefaultEntryHolder.defaultEntry);
+      }
+      if (!labels_.isMutable()) {
+        labels_ = labels_.copy();
+      }
+      return labels_;
+    }
+
+    public int getLabelsCount() {
+      return internalGetLabels().getMap().size();
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+
+    @java.lang.Override
+    public boolean containsLabels(
+        java.lang.String key) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      return internalGetLabels().getMap().containsKey(key);
+    }
+    /**
+     * Use {@link #getLabelsMap()} instead.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.util.Map<java.lang.String, java.lang.String> getLabels() {
+      return getLabelsMap();
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+    @java.lang.Override
+
+    public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
+      return internalGetLabels().getMap();
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+    @java.lang.Override
+
+    public java.lang.String getLabelsOrDefault(
+        java.lang.String key,
+        java.lang.String defaultValue) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      java.util.Map<java.lang.String, java.lang.String> map =
+          internalGetLabels().getMap();
+      return map.containsKey(key) ? map.get(key) : defaultValue;
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+    @java.lang.Override
+
+    public java.lang.String getLabelsOrThrow(
+        java.lang.String key) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      java.util.Map<java.lang.String, java.lang.String> map =
+          internalGetLabels().getMap();
+      if (!map.containsKey(key)) {
+        throw new java.lang.IllegalArgumentException();
+      }
+      return map.get(key);
+    }
+
+    public Builder clearLabels() {
+      internalGetMutableLabels().getMutableMap()
+          .clear();
+      return this;
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+
+    public Builder removeLabels(
+        java.lang.String key) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      internalGetMutableLabels().getMutableMap()
+          .remove(key);
+      return this;
+    }
+    /**
+     * Use alternate mutation accessors instead.
+     */
+    @java.lang.Deprecated
+    public java.util.Map<java.lang.String, java.lang.String>
+    getMutableLabels() {
+      return internalGetMutableLabels().getMutableMap();
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+    public Builder putLabels(
+        java.lang.String key,
+        java.lang.String value) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      if (value == null) {
+  throw new NullPointerException("map value");
+}
+
+      internalGetMutableLabels().getMutableMap()
+          .put(key, value);
+      return this;
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+
+    public Builder putAllLabels(
+        java.util.Map<java.lang.String, java.lang.String> values) {
+      internalGetMutableLabels().getMutableMap()
+          .putAll(values);
+      return this;
+    }
+
+    private boolean useServiceNetworking_ ;
+    /**
+     * <pre>
+     * Whether the VPC peering for the node is set up through Service Networking
+     * API. The VPC Peering should be set up before provisioning the node.
+     * If this field is set, cidr_block field should not be specified. If the
+     * network, that you want to peer the TPU Node to, is Shared VPC networks,
+     * the node must be created with this this field enabled.
+     * </pre>
+     *
+     * <code>bool use_service_networking = 27;</code>
+     * @return The useServiceNetworking.
+     */
+    @java.lang.Override
+    public boolean getUseServiceNetworking() {
+      return useServiceNetworking_;
+    }
+    /**
+     * <pre>
+     * Whether the VPC peering for the node is set up through Service Networking
+     * API. The VPC Peering should be set up before provisioning the node.
+     * If this field is set, cidr_block field should not be specified. If the
+     * network, that you want to peer the TPU Node to, is Shared VPC networks,
+     * the node must be created with this this field enabled.
+     * </pre>
+     *
+     * <code>bool use_service_networking = 27;</code>
+     * @param value The useServiceNetworking to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUseServiceNetworking(boolean value) {
+      
+      useServiceNetworking_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Whether the VPC peering for the node is set up through Service Networking
+     * API. The VPC Peering should be set up before provisioning the node.
+     * If this field is set, cidr_block field should not be specified. If the
+     * network, that you want to peer the TPU Node to, is Shared VPC networks,
+     * the node must be created with this this field enabled.
+     * </pre>
+     *
+     * <code>bool use_service_networking = 27;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearUseServiceNetworking() {
+      
+      useServiceNetworking_ = false;
+      onChanged();
+      return this;
+    }
+
+    private int apiVersion_ = 0;
+    /**
+     * <pre>
+     * Output only. The API version that created this Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The enum numeric value on the wire for apiVersion.
+     */
+    @java.lang.Override public int getApiVersionValue() {
+      return apiVersion_;
+    }
+    /**
+     * <pre>
+     * Output only. The API version that created this Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The enum numeric value on the wire for apiVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setApiVersionValue(int value) {
+      
+      apiVersion_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The API version that created this Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The apiVersion.
+     */
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.Node.ApiVersion getApiVersion() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.tpu.v1.Node.ApiVersion result = com.google.cloud.tpu.v1.Node.ApiVersion.valueOf(apiVersion_);
+      return result == null ? com.google.cloud.tpu.v1.Node.ApiVersion.UNRECOGNIZED : result;
+    }
+    /**
+     * <pre>
+     * Output only. The API version that created this Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The apiVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setApiVersion(com.google.cloud.tpu.v1.Node.ApiVersion value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      
+      apiVersion_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The API version that created this Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearApiVersion() {
+      
+      apiVersion_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<com.google.cloud.tpu.v1.Symptom> symptoms_ =
+      java.util.Collections.emptyList();
+    private void ensureSymptomsIsMutable() {
+      if (!((bitField0_ & 0x00000004) != 0)) {
+        symptoms_ = new java.util.ArrayList<com.google.cloud.tpu.v1.Symptom>(symptoms_);
+        bitField0_ |= 0x00000004;
+       }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v1.Symptom, com.google.cloud.tpu.v1.Symptom.Builder, com.google.cloud.tpu.v1.SymptomOrBuilder> symptomsBuilder_;
+
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v1.Symptom> getSymptomsList() {
+      if (symptomsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(symptoms_);
+      } else {
+        return symptomsBuilder_.getMessageList();
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public int getSymptomsCount() {
+      if (symptomsBuilder_ == null) {
+        return symptoms_.size();
+      } else {
+        return symptomsBuilder_.getCount();
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v1.Symptom getSymptoms(int index) {
+      if (symptomsBuilder_ == null) {
+        return symptoms_.get(index);
+      } else {
+        return symptomsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder setSymptoms(
+        int index, com.google.cloud.tpu.v1.Symptom value) {
+      if (symptomsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSymptomsIsMutable();
+        symptoms_.set(index, value);
+        onChanged();
+      } else {
+        symptomsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder setSymptoms(
+        int index, com.google.cloud.tpu.v1.Symptom.Builder builderForValue) {
+      if (symptomsBuilder_ == null) {
+        ensureSymptomsIsMutable();
+        symptoms_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        symptomsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addSymptoms(com.google.cloud.tpu.v1.Symptom value) {
+      if (symptomsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSymptomsIsMutable();
+        symptoms_.add(value);
+        onChanged();
+      } else {
+        symptomsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addSymptoms(
+        int index, com.google.cloud.tpu.v1.Symptom value) {
+      if (symptomsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSymptomsIsMutable();
+        symptoms_.add(index, value);
+        onChanged();
+      } else {
+        symptomsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addSymptoms(
+        com.google.cloud.tpu.v1.Symptom.Builder builderForValue) {
+      if (symptomsBuilder_ == null) {
+        ensureSymptomsIsMutable();
+        symptoms_.add(builderForValue.build());
+        onChanged();
+      } else {
+        symptomsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addSymptoms(
+        int index, com.google.cloud.tpu.v1.Symptom.Builder builderForValue) {
+      if (symptomsBuilder_ == null) {
+        ensureSymptomsIsMutable();
+        symptoms_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        symptomsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addAllSymptoms(
+        java.lang.Iterable<? extends com.google.cloud.tpu.v1.Symptom> values) {
+      if (symptomsBuilder_ == null) {
+        ensureSymptomsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, symptoms_);
+        onChanged();
+      } else {
+        symptomsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder clearSymptoms() {
+      if (symptomsBuilder_ == null) {
+        symptoms_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000004);
+        onChanged();
+      } else {
+        symptomsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder removeSymptoms(int index) {
+      if (symptomsBuilder_ == null) {
+        ensureSymptomsIsMutable();
+        symptoms_.remove(index);
+        onChanged();
+      } else {
+        symptomsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v1.Symptom.Builder getSymptomsBuilder(
+        int index) {
+      return getSymptomsFieldBuilder().getBuilder(index);
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v1.SymptomOrBuilder getSymptomsOrBuilder(
+        int index) {
+      if (symptomsBuilder_ == null) {
+        return symptoms_.get(index);  } else {
+        return symptomsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public java.util.List<? extends com.google.cloud.tpu.v1.SymptomOrBuilder> 
+         getSymptomsOrBuilderList() {
+      if (symptomsBuilder_ != null) {
+        return symptomsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(symptoms_);
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v1.Symptom.Builder addSymptomsBuilder() {
+      return getSymptomsFieldBuilder().addBuilder(
+          com.google.cloud.tpu.v1.Symptom.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v1.Symptom.Builder addSymptomsBuilder(
+        int index) {
+      return getSymptomsFieldBuilder().addBuilder(
+          index, com.google.cloud.tpu.v1.Symptom.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v1.Symptom.Builder> 
+         getSymptomsBuilderList() {
+      return getSymptomsFieldBuilder().getBuilderList();
+    }
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v1.Symptom, com.google.cloud.tpu.v1.Symptom.Builder, com.google.cloud.tpu.v1.SymptomOrBuilder> 
+        getSymptomsFieldBuilder() {
+      if (symptomsBuilder_ == null) {
+        symptomsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.tpu.v1.Symptom, com.google.cloud.tpu.v1.Symptom.Builder, com.google.cloud.tpu.v1.SymptomOrBuilder>(
+                symptoms_,
+                ((bitField0_ & 0x00000004) != 0),
+                getParentForChildren(),
+                isClean());
+        symptoms_ = null;
+      }
+      return symptomsBuilder_;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.Node)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.Node)
+  private static final com.google.cloud.tpu.v1.Node DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.Node();
+  }
+
+  public static com.google.cloud.tpu.v1.Node getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Node>
+      PARSER = new com.google.protobuf.AbstractParser<Node>() {
+    @java.lang.Override
+    public Node parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new Node(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<Node> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Node> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.Node getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NodeName.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NodeName.java
new file mode 100644
index 000000000000..4a182e58c95c
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NodeName.java
@@ -0,0 +1,217 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+@Generated("by gapic-generator-java")
+public class NodeName implements ResourceName {
+  private static final PathTemplate PROJECT_LOCATION_NODE =
+      PathTemplate.createWithoutUrlEncoding("projects/{project}/locations/{location}/nodes/{node}");
+  private volatile Map<String, String> fieldValuesMap;
+  private final String project;
+  private final String location;
+  private final String node;
+
+  @Deprecated
+  protected NodeName() {
+    project = null;
+    location = null;
+    node = null;
+  }
+
+  private NodeName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    node = Preconditions.checkNotNull(builder.getNode());
+  }
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getNode() {
+    return node;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static NodeName of(String project, String location, String node) {
+    return newBuilder().setProject(project).setLocation(location).setNode(node).build();
+  }
+
+  public static String format(String project, String location, String node) {
+    return newBuilder().setProject(project).setLocation(location).setNode(node).build().toString();
+  }
+
+  public static NodeName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PROJECT_LOCATION_NODE.validatedMatch(
+            formattedString, "NodeName.parse: formattedString not in valid format");
+    return of(matchMap.get("project"), matchMap.get("location"), matchMap.get("node"));
+  }
+
+  public static List<NodeName> parseList(List<String> formattedStrings) {
+    List<NodeName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<NodeName> values) {
+    List<String> list = new ArrayList<>(values.size());
+    for (NodeName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT_LOCATION_NODE.matches(formattedString);
+  }
+
+  @Override
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          if (node != null) {
+            fieldMapBuilder.put("node", node);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PROJECT_LOCATION_NODE.instantiate(
+        "project", project, "location", location, "node", node);
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      NodeName that = ((NodeName) o);
+      return Objects.equals(this.project, that.project)
+          && Objects.equals(this.location, that.location)
+          && Objects.equals(this.node, that.node);
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    h *= 1000003;
+    h ^= Objects.hashCode(node);
+    return h;
+  }
+
+  /** Builder for projects/{project}/locations/{location}/nodes/{node}. */
+  public static class Builder {
+    private String project;
+    private String location;
+    private String node;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getNode() {
+      return node;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setNode(String node) {
+      this.node = node;
+      return this;
+    }
+
+    private Builder(NodeName nodeName) {
+      this.project = nodeName.project;
+      this.location = nodeName.location;
+      this.node = nodeName.node;
+    }
+
+    public NodeName build() {
+      return new NodeName(this);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NodeOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NodeOrBuilder.java
new file mode 100644
index 000000000000..7bca19d16a1b
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/NodeOrBuilder.java
@@ -0,0 +1,528 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface NodeOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.Node)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Output only. Immutable. The name of the TPU
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * Output only. Immutable. The name of the TPU
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = IMMUTABLE, (.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+
+  /**
+   * <pre>
+   * The user-supplied description of the TPU. Maximum of 512 characters.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   * @return The description.
+   */
+  java.lang.String getDescription();
+  /**
+   * <pre>
+   * The user-supplied description of the TPU. Maximum of 512 characters.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   * @return The bytes for description.
+   */
+  com.google.protobuf.ByteString
+      getDescriptionBytes();
+
+  /**
+   * <pre>
+   * Required. The type of hardware accelerators associated with this node.
+   * </pre>
+   *
+   * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The acceleratorType.
+   */
+  java.lang.String getAcceleratorType();
+  /**
+   * <pre>
+   * Required. The type of hardware accelerators associated with this node.
+   * </pre>
+   *
+   * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The bytes for acceleratorType.
+   */
+  com.google.protobuf.ByteString
+      getAcceleratorTypeBytes();
+
+  /**
+   * <pre>
+   * Output only. DEPRECATED! Use network_endpoints instead.
+   * The network address for the TPU Node as visible to Compute Engine
+   * instances.
+   * </pre>
+   *
+   * <code>string ip_address = 8 [deprecated = true];</code>
+   * @deprecated google.cloud.tpu.v1.Node.ip_address is deprecated.
+   *     See google/cloud/tpu/v1/cloud_tpu.proto;l=275
+   * @return The ipAddress.
+   */
+  @java.lang.Deprecated java.lang.String getIpAddress();
+  /**
+   * <pre>
+   * Output only. DEPRECATED! Use network_endpoints instead.
+   * The network address for the TPU Node as visible to Compute Engine
+   * instances.
+   * </pre>
+   *
+   * <code>string ip_address = 8 [deprecated = true];</code>
+   * @deprecated google.cloud.tpu.v1.Node.ip_address is deprecated.
+   *     See google/cloud/tpu/v1/cloud_tpu.proto;l=275
+   * @return The bytes for ipAddress.
+   */
+  @java.lang.Deprecated com.google.protobuf.ByteString
+      getIpAddressBytes();
+
+  /**
+   * <pre>
+   * Output only. DEPRECATED! Use network_endpoints instead.
+   * The network port for the TPU Node as visible to Compute Engine instances.
+   * </pre>
+   *
+   * <code>string port = 14 [deprecated = true];</code>
+   * @deprecated google.cloud.tpu.v1.Node.port is deprecated.
+   *     See google/cloud/tpu/v1/cloud_tpu.proto;l=279
+   * @return The port.
+   */
+  @java.lang.Deprecated java.lang.String getPort();
+  /**
+   * <pre>
+   * Output only. DEPRECATED! Use network_endpoints instead.
+   * The network port for the TPU Node as visible to Compute Engine instances.
+   * </pre>
+   *
+   * <code>string port = 14 [deprecated = true];</code>
+   * @deprecated google.cloud.tpu.v1.Node.port is deprecated.
+   *     See google/cloud/tpu/v1/cloud_tpu.proto;l=279
+   * @return The bytes for port.
+   */
+  @java.lang.Deprecated com.google.protobuf.ByteString
+      getPortBytes();
+
+  /**
+   * <pre>
+   * Output only. The current state for the TPU Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The enum numeric value on the wire for state.
+   */
+  int getStateValue();
+  /**
+   * <pre>
+   * Output only. The current state for the TPU Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The state.
+   */
+  com.google.cloud.tpu.v1.Node.State getState();
+
+  /**
+   * <pre>
+   * Output only. If this field is populated, it contains a description of why the TPU Node
+   * is unhealthy.
+   * </pre>
+   *
+   * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The healthDescription.
+   */
+  java.lang.String getHealthDescription();
+  /**
+   * <pre>
+   * Output only. If this field is populated, it contains a description of why the TPU Node
+   * is unhealthy.
+   * </pre>
+   *
+   * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The bytes for healthDescription.
+   */
+  com.google.protobuf.ByteString
+      getHealthDescriptionBytes();
+
+  /**
+   * <pre>
+   * Required. The version of Tensorflow running in the Node.
+   * </pre>
+   *
+   * <code>string tensorflow_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The tensorflowVersion.
+   */
+  java.lang.String getTensorflowVersion();
+  /**
+   * <pre>
+   * Required. The version of Tensorflow running in the Node.
+   * </pre>
+   *
+   * <code>string tensorflow_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The bytes for tensorflowVersion.
+   */
+  com.google.protobuf.ByteString
+      getTensorflowVersionBytes();
+
+  /**
+   * <pre>
+   * The name of a network they wish to peer the TPU node to. It must be a
+   * preexisting Compute Engine network inside of the project on which this API
+   * has been activated. If none is provided, "default" will be used.
+   * </pre>
+   *
+   * <code>string network = 12;</code>
+   * @return The network.
+   */
+  java.lang.String getNetwork();
+  /**
+   * <pre>
+   * The name of a network they wish to peer the TPU node to. It must be a
+   * preexisting Compute Engine network inside of the project on which this API
+   * has been activated. If none is provided, "default" will be used.
+   * </pre>
+   *
+   * <code>string network = 12;</code>
+   * @return The bytes for network.
+   */
+  com.google.protobuf.ByteString
+      getNetworkBytes();
+
+  /**
+   * <pre>
+   * The CIDR block that the TPU node will use when selecting an IP address.
+   * This CIDR block must be a /29 block; the Compute Engine networks API
+   * forbids a smaller block, and using a larger block would be wasteful (a
+   * node can only consume one IP address). Errors will occur if the CIDR block
+   * has already been used for a currently existing TPU node, the CIDR block
+   * conflicts with any subnetworks in the user's provided network, or the
+   * provided network is peered with another network that is using that CIDR
+   * block.
+   * </pre>
+   *
+   * <code>string cidr_block = 13;</code>
+   * @return The cidrBlock.
+   */
+  java.lang.String getCidrBlock();
+  /**
+   * <pre>
+   * The CIDR block that the TPU node will use when selecting an IP address.
+   * This CIDR block must be a /29 block; the Compute Engine networks API
+   * forbids a smaller block, and using a larger block would be wasteful (a
+   * node can only consume one IP address). Errors will occur if the CIDR block
+   * has already been used for a currently existing TPU node, the CIDR block
+   * conflicts with any subnetworks in the user's provided network, or the
+   * provided network is peered with another network that is using that CIDR
+   * block.
+   * </pre>
+   *
+   * <code>string cidr_block = 13;</code>
+   * @return The bytes for cidrBlock.
+   */
+  com.google.protobuf.ByteString
+      getCidrBlockBytes();
+
+  /**
+   * <pre>
+   * Output only. The service account used to run the tensor flow services within the node.
+   * To share resources, including Google Cloud Storage data, with the
+   * Tensorflow job running in the Node, this account must have permissions to
+   * that data.
+   * </pre>
+   *
+   * <code>string service_account = 15 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The serviceAccount.
+   */
+  java.lang.String getServiceAccount();
+  /**
+   * <pre>
+   * Output only. The service account used to run the tensor flow services within the node.
+   * To share resources, including Google Cloud Storage data, with the
+   * Tensorflow job running in the Node, this account must have permissions to
+   * that data.
+   * </pre>
+   *
+   * <code>string service_account = 15 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The bytes for serviceAccount.
+   */
+  com.google.protobuf.ByteString
+      getServiceAccountBytes();
+
+  /**
+   * <pre>
+   * Output only. The time when the node was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return Whether the createTime field is set.
+   */
+  boolean hasCreateTime();
+  /**
+   * <pre>
+   * Output only. The time when the node was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The createTime.
+   */
+  com.google.protobuf.Timestamp getCreateTime();
+  /**
+   * <pre>
+   * Output only. The time when the node was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder();
+
+  /**
+   * <pre>
+   * The scheduling options for this node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+   * @return Whether the schedulingConfig field is set.
+   */
+  boolean hasSchedulingConfig();
+  /**
+   * <pre>
+   * The scheduling options for this node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+   * @return The schedulingConfig.
+   */
+  com.google.cloud.tpu.v1.SchedulingConfig getSchedulingConfig();
+  /**
+   * <pre>
+   * The scheduling options for this node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.SchedulingConfig scheduling_config = 17;</code>
+   */
+  com.google.cloud.tpu.v1.SchedulingConfigOrBuilder getSchedulingConfigOrBuilder();
+
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that Tensorflow clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  java.util.List<com.google.cloud.tpu.v1.NetworkEndpoint> 
+      getNetworkEndpointsList();
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that Tensorflow clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  com.google.cloud.tpu.v1.NetworkEndpoint getNetworkEndpoints(int index);
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that Tensorflow clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  int getNetworkEndpointsCount();
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that Tensorflow clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  java.util.List<? extends com.google.cloud.tpu.v1.NetworkEndpointOrBuilder> 
+      getNetworkEndpointsOrBuilderList();
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that Tensorflow clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  com.google.cloud.tpu.v1.NetworkEndpointOrBuilder getNetworkEndpointsOrBuilder(
+      int index);
+
+  /**
+   * <pre>
+   * The health status of the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node.Health health = 22;</code>
+   * @return The enum numeric value on the wire for health.
+   */
+  int getHealthValue();
+  /**
+   * <pre>
+   * The health status of the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node.Health health = 22;</code>
+   * @return The health.
+   */
+  com.google.cloud.tpu.v1.Node.Health getHealth();
+
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+  int getLabelsCount();
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+  boolean containsLabels(
+      java.lang.String key);
+  /**
+   * Use {@link #getLabelsMap()} instead.
+   */
+  @java.lang.Deprecated
+  java.util.Map<java.lang.String, java.lang.String>
+  getLabels();
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+  java.util.Map<java.lang.String, java.lang.String>
+  getLabelsMap();
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+
+  /* nullable */
+java.lang.String getLabelsOrDefault(
+      java.lang.String key,
+      /* nullable */
+java.lang.String defaultValue);
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+
+  java.lang.String getLabelsOrThrow(
+      java.lang.String key);
+
+  /**
+   * <pre>
+   * Whether the VPC peering for the node is set up through Service Networking
+   * API. The VPC Peering should be set up before provisioning the node.
+   * If this field is set, cidr_block field should not be specified. If the
+   * network, that you want to peer the TPU Node to, is Shared VPC networks,
+   * the node must be created with this this field enabled.
+   * </pre>
+   *
+   * <code>bool use_service_networking = 27;</code>
+   * @return The useServiceNetworking.
+   */
+  boolean getUseServiceNetworking();
+
+  /**
+   * <pre>
+   * Output only. The API version that created this Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The enum numeric value on the wire for apiVersion.
+   */
+  int getApiVersionValue();
+  /**
+   * <pre>
+   * Output only. The API version that created this Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The apiVersion.
+   */
+  com.google.cloud.tpu.v1.Node.ApiVersion getApiVersion();
+
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  java.util.List<com.google.cloud.tpu.v1.Symptom> 
+      getSymptomsList();
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  com.google.cloud.tpu.v1.Symptom getSymptoms(int index);
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  int getSymptomsCount();
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  java.util.List<? extends com.google.cloud.tpu.v1.SymptomOrBuilder> 
+      getSymptomsOrBuilderList();
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  com.google.cloud.tpu.v1.SymptomOrBuilder getSymptomsOrBuilder(
+      int index);
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadata.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadata.java
new file mode 100644
index 000000000000..83d81e40d712
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadata.java
@@ -0,0 +1,1653 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Metadata describing an [Operation][google.longrunning.Operation]
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.OperationMetadata}
+ */
+public final class OperationMetadata extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.OperationMetadata)
+    OperationMetadataOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use OperationMetadata.newBuilder() to construct.
+  private OperationMetadata(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private OperationMetadata() {
+    target_ = "";
+    verb_ = "";
+    statusDetail_ = "";
+    apiVersion_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new OperationMetadata();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private OperationMetadata(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            com.google.protobuf.Timestamp.Builder subBuilder = null;
+            if (createTime_ != null) {
+              subBuilder = createTime_.toBuilder();
+            }
+            createTime_ = input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(createTime_);
+              createTime_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          case 18: {
+            com.google.protobuf.Timestamp.Builder subBuilder = null;
+            if (endTime_ != null) {
+              subBuilder = endTime_.toBuilder();
+            }
+            endTime_ = input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(endTime_);
+              endTime_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            target_ = s;
+            break;
+          }
+          case 34: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            verb_ = s;
+            break;
+          }
+          case 42: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            statusDetail_ = s;
+            break;
+          }
+          case 48: {
+
+            cancelRequested_ = input.readBool();
+            break;
+          }
+          case 58: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            apiVersion_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_OperationMetadata_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_OperationMetadata_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v1.OperationMetadata.class, com.google.cloud.tpu.v1.OperationMetadata.Builder.class);
+  }
+
+  public static final int CREATE_TIME_FIELD_NUMBER = 1;
+  private com.google.protobuf.Timestamp createTime_;
+  /**
+   * <pre>
+   * The time the operation was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return Whether the createTime field is set.
+   */
+  @java.lang.Override
+  public boolean hasCreateTime() {
+    return createTime_ != null;
+  }
+  /**
+   * <pre>
+   * The time the operation was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return The createTime.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getCreateTime() {
+    return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+  }
+  /**
+   * <pre>
+   * The time the operation was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+    return getCreateTime();
+  }
+
+  public static final int END_TIME_FIELD_NUMBER = 2;
+  private com.google.protobuf.Timestamp endTime_;
+  /**
+   * <pre>
+   * The time the operation finished running.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp end_time = 2;</code>
+   * @return Whether the endTime field is set.
+   */
+  @java.lang.Override
+  public boolean hasEndTime() {
+    return endTime_ != null;
+  }
+  /**
+   * <pre>
+   * The time the operation finished running.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp end_time = 2;</code>
+   * @return The endTime.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getEndTime() {
+    return endTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : endTime_;
+  }
+  /**
+   * <pre>
+   * The time the operation finished running.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp end_time = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.TimestampOrBuilder getEndTimeOrBuilder() {
+    return getEndTime();
+  }
+
+  public static final int TARGET_FIELD_NUMBER = 3;
+  private volatile java.lang.Object target_;
+  /**
+   * <pre>
+   * Target of the operation - for example
+   * projects/project-1/connectivityTests/test-1
+   * </pre>
+   *
+   * <code>string target = 3;</code>
+   * @return The target.
+   */
+  @java.lang.Override
+  public java.lang.String getTarget() {
+    java.lang.Object ref = target_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      target_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Target of the operation - for example
+   * projects/project-1/connectivityTests/test-1
+   * </pre>
+   *
+   * <code>string target = 3;</code>
+   * @return The bytes for target.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getTargetBytes() {
+    java.lang.Object ref = target_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      target_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int VERB_FIELD_NUMBER = 4;
+  private volatile java.lang.Object verb_;
+  /**
+   * <pre>
+   * Name of the verb executed by the operation.
+   * </pre>
+   *
+   * <code>string verb = 4;</code>
+   * @return The verb.
+   */
+  @java.lang.Override
+  public java.lang.String getVerb() {
+    java.lang.Object ref = verb_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      verb_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Name of the verb executed by the operation.
+   * </pre>
+   *
+   * <code>string verb = 4;</code>
+   * @return The bytes for verb.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getVerbBytes() {
+    java.lang.Object ref = verb_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      verb_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int STATUS_DETAIL_FIELD_NUMBER = 5;
+  private volatile java.lang.Object statusDetail_;
+  /**
+   * <pre>
+   * Human-readable status of the operation, if any.
+   * </pre>
+   *
+   * <code>string status_detail = 5;</code>
+   * @return The statusDetail.
+   */
+  @java.lang.Override
+  public java.lang.String getStatusDetail() {
+    java.lang.Object ref = statusDetail_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      statusDetail_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Human-readable status of the operation, if any.
+   * </pre>
+   *
+   * <code>string status_detail = 5;</code>
+   * @return The bytes for statusDetail.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getStatusDetailBytes() {
+    java.lang.Object ref = statusDetail_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      statusDetail_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int CANCEL_REQUESTED_FIELD_NUMBER = 6;
+  private boolean cancelRequested_;
+  /**
+   * <pre>
+   * Specifies if cancellation was requested for the operation.
+   * </pre>
+   *
+   * <code>bool cancel_requested = 6;</code>
+   * @return The cancelRequested.
+   */
+  @java.lang.Override
+  public boolean getCancelRequested() {
+    return cancelRequested_;
+  }
+
+  public static final int API_VERSION_FIELD_NUMBER = 7;
+  private volatile java.lang.Object apiVersion_;
+  /**
+   * <pre>
+   * API version.
+   * </pre>
+   *
+   * <code>string api_version = 7;</code>
+   * @return The apiVersion.
+   */
+  @java.lang.Override
+  public java.lang.String getApiVersion() {
+    java.lang.Object ref = apiVersion_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      apiVersion_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * API version.
+   * </pre>
+   *
+   * <code>string api_version = 7;</code>
+   * @return The bytes for apiVersion.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getApiVersionBytes() {
+    java.lang.Object ref = apiVersion_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      apiVersion_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (createTime_ != null) {
+      output.writeMessage(1, getCreateTime());
+    }
+    if (endTime_ != null) {
+      output.writeMessage(2, getEndTime());
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(target_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, target_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(verb_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, verb_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(statusDetail_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 5, statusDetail_);
+    }
+    if (cancelRequested_ != false) {
+      output.writeBool(6, cancelRequested_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(apiVersion_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 7, apiVersion_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (createTime_ != null) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(1, getCreateTime());
+    }
+    if (endTime_ != null) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(2, getEndTime());
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(target_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, target_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(verb_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, verb_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(statusDetail_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, statusDetail_);
+    }
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
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+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
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+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
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+  /**
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+   * Metadata describing an [Operation][google.longrunning.Operation]
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.OperationMetadata}
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+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
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+    public Builder mergeFrom(com.google.protobuf.Message other) {
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+        return mergeFrom((com.google.cloud.tpu.v1.OperationMetadata)other);
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+    public Builder mergeFrom(com.google.cloud.tpu.v1.OperationMetadata other) {
+      if (other == com.google.cloud.tpu.v1.OperationMetadata.getDefaultInstance()) return this;
+      if (other.hasCreateTime()) {
+        mergeCreateTime(other.getCreateTime());
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+      onChanged();
+      return this;
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+
+    @java.lang.Override
+    public final boolean isInitialized() {
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+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.OperationMetadata parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
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+        parsedMessage = (com.google.cloud.tpu.v1.OperationMetadata) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
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+      return this;
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+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> createTimeBuilder_;
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     * @return Whether the createTime field is set.
+     */
+    public boolean hasCreateTime() {
+      return createTimeBuilder_ != null || createTime_ != null;
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     * @return The createTime.
+     */
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+      if (createTimeBuilder_ == null) {
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+      } else {
+        return createTimeBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder setCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        createTime_ = value;
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder setCreateTime(
+        com.google.protobuf.Timestamp.Builder builderForValue) {
+      if (createTimeBuilder_ == null) {
+        createTime_ = builderForValue.build();
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder mergeCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (createTime_ != null) {
+          createTime_ =
+            com.google.protobuf.Timestamp.newBuilder(createTime_).mergeFrom(value).buildPartial();
+        } else {
+          createTime_ = value;
+        }
+        onChanged();
+      } else {
+        createTimeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder clearCreateTime() {
+      if (createTimeBuilder_ == null) {
+        createTime_ = null;
+        onChanged();
+      } else {
+        createTime_ = null;
+        createTimeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public com.google.protobuf.Timestamp.Builder getCreateTimeBuilder() {
+      
+      onChanged();
+      return getCreateTimeFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+      if (createTimeBuilder_ != null) {
+        return createTimeBuilder_.getMessageOrBuilder();
+      } else {
+        return createTime_ == null ?
+            com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+      }
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
+        getCreateTimeFieldBuilder() {
+      if (createTimeBuilder_ == null) {
+        createTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
+                getCreateTime(),
+                getParentForChildren(),
+                isClean());
+        createTime_ = null;
+      }
+      return createTimeBuilder_;
+    }
+
+    private com.google.protobuf.Timestamp endTime_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> endTimeBuilder_;
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     * @return Whether the endTime field is set.
+     */
+    public boolean hasEndTime() {
+      return endTimeBuilder_ != null || endTime_ != null;
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     * @return The endTime.
+     */
+    public com.google.protobuf.Timestamp getEndTime() {
+      if (endTimeBuilder_ == null) {
+        return endTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : endTime_;
+      } else {
+        return endTimeBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    public Builder setEndTime(com.google.protobuf.Timestamp value) {
+      if (endTimeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        endTime_ = value;
+        onChanged();
+      } else {
+        endTimeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    public Builder setEndTime(
+        com.google.protobuf.Timestamp.Builder builderForValue) {
+      if (endTimeBuilder_ == null) {
+        endTime_ = builderForValue.build();
+        onChanged();
+      } else {
+        endTimeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    public Builder mergeEndTime(com.google.protobuf.Timestamp value) {
+      if (endTimeBuilder_ == null) {
+        if (endTime_ != null) {
+          endTime_ =
+            com.google.protobuf.Timestamp.newBuilder(endTime_).mergeFrom(value).buildPartial();
+        } else {
+          endTime_ = value;
+        }
+        onChanged();
+      } else {
+        endTimeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    public Builder clearEndTime() {
+      if (endTimeBuilder_ == null) {
+        endTime_ = null;
+        onChanged();
+      } else {
+        endTime_ = null;
+        endTimeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    public com.google.protobuf.Timestamp.Builder getEndTimeBuilder() {
+      
+      onChanged();
+      return getEndTimeFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    public com.google.protobuf.TimestampOrBuilder getEndTimeOrBuilder() {
+      if (endTimeBuilder_ != null) {
+        return endTimeBuilder_.getMessageOrBuilder();
+      } else {
+        return endTime_ == null ?
+            com.google.protobuf.Timestamp.getDefaultInstance() : endTime_;
+      }
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
+        getEndTimeFieldBuilder() {
+      if (endTimeBuilder_ == null) {
+        endTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
+                getEndTime(),
+                getParentForChildren(),
+                isClean());
+        endTime_ = null;
+      }
+      return endTimeBuilder_;
+    }
+
+    private java.lang.Object target_ = "";
+    /**
+     * <pre>
+     * Target of the operation - for example
+     * projects/project-1/connectivityTests/test-1
+     * </pre>
+     *
+     * <code>string target = 3;</code>
+     * @return The target.
+     */
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+      java.lang.Object ref = target_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        target_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Target of the operation - for example
+     * projects/project-1/connectivityTests/test-1
+     * </pre>
+     *
+     * <code>string target = 3;</code>
+     * @return The bytes for target.
+     */
+    public com.google.protobuf.ByteString
+        getTargetBytes() {
+      java.lang.Object ref = target_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        target_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Target of the operation - for example
+     * projects/project-1/connectivityTests/test-1
+     * </pre>
+     *
+     * <code>string target = 3;</code>
+     * @param value The target to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTarget(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      target_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Target of the operation - for example
+     * projects/project-1/connectivityTests/test-1
+     * </pre>
+     *
+     * <code>string target = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearTarget() {
+      
+      target_ = getDefaultInstance().getTarget();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Target of the operation - for example
+     * projects/project-1/connectivityTests/test-1
+     * </pre>
+     *
+     * <code>string target = 3;</code>
+     * @param value The bytes for target to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      target_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object verb_ = "";
+    /**
+     * <pre>
+     * Name of the verb executed by the operation.
+     * </pre>
+     *
+     * <code>string verb = 4;</code>
+     * @return The verb.
+     */
+    public java.lang.String getVerb() {
+      java.lang.Object ref = verb_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        verb_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Name of the verb executed by the operation.
+     * </pre>
+     *
+     * <code>string verb = 4;</code>
+     * @return The bytes for verb.
+     */
+    public com.google.protobuf.ByteString
+        getVerbBytes() {
+      java.lang.Object ref = verb_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        verb_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Name of the verb executed by the operation.
+     * </pre>
+     *
+     * <code>string verb = 4;</code>
+     * @param value The verb to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVerb(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      verb_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Name of the verb executed by the operation.
+     * </pre>
+     *
+     * <code>string verb = 4;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearVerb() {
+      
+      verb_ = getDefaultInstance().getVerb();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Name of the verb executed by the operation.
+     * </pre>
+     *
+     * <code>string verb = 4;</code>
+     * @param value The bytes for verb to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVerbBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      verb_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object statusDetail_ = "";
+    /**
+     * <pre>
+     * Human-readable status of the operation, if any.
+     * </pre>
+     *
+     * <code>string status_detail = 5;</code>
+     * @return The statusDetail.
+     */
+    public java.lang.String getStatusDetail() {
+      java.lang.Object ref = statusDetail_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        statusDetail_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Human-readable status of the operation, if any.
+     * </pre>
+     *
+     * <code>string status_detail = 5;</code>
+     * @return The bytes for statusDetail.
+     */
+    public com.google.protobuf.ByteString
+        getStatusDetailBytes() {
+      java.lang.Object ref = statusDetail_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        statusDetail_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Human-readable status of the operation, if any.
+     * </pre>
+     *
+     * <code>string status_detail = 5;</code>
+     * @param value The statusDetail to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStatusDetail(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      statusDetail_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Human-readable status of the operation, if any.
+     * </pre>
+     *
+     * <code>string status_detail = 5;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearStatusDetail() {
+      
+      statusDetail_ = getDefaultInstance().getStatusDetail();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Human-readable status of the operation, if any.
+     * </pre>
+     *
+     * <code>string status_detail = 5;</code>
+     * @param value The bytes for statusDetail to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStatusDetailBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      statusDetail_ = value;
+      onChanged();
+      return this;
+    }
+
+    private boolean cancelRequested_ ;
+    /**
+     * <pre>
+     * Specifies if cancellation was requested for the operation.
+     * </pre>
+     *
+     * <code>bool cancel_requested = 6;</code>
+     * @return The cancelRequested.
+     */
+    @java.lang.Override
+    public boolean getCancelRequested() {
+      return cancelRequested_;
+    }
+    /**
+     * <pre>
+     * Specifies if cancellation was requested for the operation.
+     * </pre>
+     *
+     * <code>bool cancel_requested = 6;</code>
+     * @param value The cancelRequested to set.
+     * @return This builder for chaining.
+     */
+    public Builder setCancelRequested(boolean value) {
+      
+      cancelRequested_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Specifies if cancellation was requested for the operation.
+     * </pre>
+     *
+     * <code>bool cancel_requested = 6;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearCancelRequested() {
+      
+      cancelRequested_ = false;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object apiVersion_ = "";
+    /**
+     * <pre>
+     * API version.
+     * </pre>
+     *
+     * <code>string api_version = 7;</code>
+     * @return The apiVersion.
+     */
+    public java.lang.String getApiVersion() {
+      java.lang.Object ref = apiVersion_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        apiVersion_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * API version.
+     * </pre>
+     *
+     * <code>string api_version = 7;</code>
+     * @return The bytes for apiVersion.
+     */
+    public com.google.protobuf.ByteString
+        getApiVersionBytes() {
+      java.lang.Object ref = apiVersion_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        apiVersion_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * API version.
+     * </pre>
+     *
+     * <code>string api_version = 7;</code>
+     * @param value The apiVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setApiVersion(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      apiVersion_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * API version.
+     * </pre>
+     *
+     * <code>string api_version = 7;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearApiVersion() {
+      
+      apiVersion_ = getDefaultInstance().getApiVersion();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * API version.
+     * </pre>
+     *
+     * <code>string api_version = 7;</code>
+     * @param value The bytes for apiVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setApiVersionBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      apiVersion_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.OperationMetadata)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.OperationMetadata)
+  private static final com.google.cloud.tpu.v1.OperationMetadata DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.OperationMetadata();
+  }
+
+  public static com.google.cloud.tpu.v1.OperationMetadata getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<OperationMetadata>
+      PARSER = new com.google.protobuf.AbstractParser<OperationMetadata>() {
+    @java.lang.Override
+    public OperationMetadata parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new OperationMetadata(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<OperationMetadata> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<OperationMetadata> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.OperationMetadata getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadataOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadataOrBuilder.java
new file mode 100644
index 000000000000..b88331fd15d0
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/OperationMetadataOrBuilder.java
@@ -0,0 +1,155 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface OperationMetadataOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.OperationMetadata)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The time the operation was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return Whether the createTime field is set.
+   */
+  boolean hasCreateTime();
+  /**
+   * <pre>
+   * The time the operation was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return The createTime.
+   */
+  com.google.protobuf.Timestamp getCreateTime();
+  /**
+   * <pre>
+   * The time the operation was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   */
+  com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder();
+
+  /**
+   * <pre>
+   * The time the operation finished running.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp end_time = 2;</code>
+   * @return Whether the endTime field is set.
+   */
+  boolean hasEndTime();
+  /**
+   * <pre>
+   * The time the operation finished running.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp end_time = 2;</code>
+   * @return The endTime.
+   */
+  com.google.protobuf.Timestamp getEndTime();
+  /**
+   * <pre>
+   * The time the operation finished running.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp end_time = 2;</code>
+   */
+  com.google.protobuf.TimestampOrBuilder getEndTimeOrBuilder();
+
+  /**
+   * <pre>
+   * Target of the operation - for example
+   * projects/project-1/connectivityTests/test-1
+   * </pre>
+   *
+   * <code>string target = 3;</code>
+   * @return The target.
+   */
+  java.lang.String getTarget();
+  /**
+   * <pre>
+   * Target of the operation - for example
+   * projects/project-1/connectivityTests/test-1
+   * </pre>
+   *
+   * <code>string target = 3;</code>
+   * @return The bytes for target.
+   */
+  com.google.protobuf.ByteString
+      getTargetBytes();
+
+  /**
+   * <pre>
+   * Name of the verb executed by the operation.
+   * </pre>
+   *
+   * <code>string verb = 4;</code>
+   * @return The verb.
+   */
+  java.lang.String getVerb();
+  /**
+   * <pre>
+   * Name of the verb executed by the operation.
+   * </pre>
+   *
+   * <code>string verb = 4;</code>
+   * @return The bytes for verb.
+   */
+  com.google.protobuf.ByteString
+      getVerbBytes();
+
+  /**
+   * <pre>
+   * Human-readable status of the operation, if any.
+   * </pre>
+   *
+   * <code>string status_detail = 5;</code>
+   * @return The statusDetail.
+   */
+  java.lang.String getStatusDetail();
+  /**
+   * <pre>
+   * Human-readable status of the operation, if any.
+   * </pre>
+   *
+   * <code>string status_detail = 5;</code>
+   * @return The bytes for statusDetail.
+   */
+  com.google.protobuf.ByteString
+      getStatusDetailBytes();
+
+  /**
+   * <pre>
+   * Specifies if cancellation was requested for the operation.
+   * </pre>
+   *
+   * <code>bool cancel_requested = 6;</code>
+   * @return The cancelRequested.
+   */
+  boolean getCancelRequested();
+
+  /**
+   * <pre>
+   * API version.
+   * </pre>
+   *
+   * <code>string api_version = 7;</code>
+   * @return The apiVersion.
+   */
+  java.lang.String getApiVersion();
+  /**
+   * <pre>
+   * API version.
+   * </pre>
+   *
+   * <code>string api_version = 7;</code>
+   * @return The bytes for apiVersion.
+   */
+  com.google.protobuf.ByteString
+      getApiVersionBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequest.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequest.java
new file mode 100644
index 000000000000..c45062afbf1d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequest.java
@@ -0,0 +1,761 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Request for [ReimageNode][google.cloud.tpu.v1.Tpu.ReimageNode].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.ReimageNodeRequest}
+ */
+public final class ReimageNodeRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.ReimageNodeRequest)
+    ReimageNodeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ReimageNodeRequest.newBuilder() to construct.
+  private ReimageNodeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ReimageNodeRequest() {
+    name_ = "";
+    tensorflowVersion_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ReimageNodeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ReimageNodeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            tensorflowVersion_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ReimageNodeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ReimageNodeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v1.ReimageNodeRequest.class, com.google.cloud.tpu.v1.ReimageNodeRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TENSORFLOW_VERSION_FIELD_NUMBER = 2;
+  private volatile java.lang.Object tensorflowVersion_;
+  /**
+   * <pre>
+   * The version for reimage to create.
+   * </pre>
+   *
+   * <code>string tensorflow_version = 2;</code>
+   * @return The tensorflowVersion.
+   */
+  @java.lang.Override
+  public java.lang.String getTensorflowVersion() {
+    java.lang.Object ref = tensorflowVersion_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      tensorflowVersion_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
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+   * </pre>
+   *
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+   * @return The bytes for tensorflowVersion.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getTensorflowVersionBytes() {
+    java.lang.Object ref = tensorflowVersion_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      tensorflowVersion_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
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+  @java.lang.Override
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+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tensorflowVersion_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, tensorflowVersion_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tensorflowVersion_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, tensorflowVersion_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v1.ReimageNodeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v1.ReimageNodeRequest other = (com.google.cloud.tpu.v1.ReimageNodeRequest) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!getTensorflowVersion()
+        .equals(other.getTensorflowVersion())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + TENSORFLOW_VERSION_FIELD_NUMBER;
+    hash = (53 * hash) + getTensorflowVersion().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v1.ReimageNodeRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.ReimageNodeRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ReimageNodeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.ReimageNodeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ReimageNodeRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.ReimageNodeRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ReimageNodeRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.ReimageNodeRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ReimageNodeRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.ReimageNodeRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.ReimageNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.ReimageNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v1.ReimageNodeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for [ReimageNode][google.cloud.tpu.v1.Tpu.ReimageNode].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.ReimageNodeRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.ReimageNodeRequest)
+      com.google.cloud.tpu.v1.ReimageNodeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ReimageNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ReimageNodeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v1.ReimageNodeRequest.class, com.google.cloud.tpu.v1.ReimageNodeRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v1.ReimageNodeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      tensorflowVersion_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_ReimageNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.ReimageNodeRequest getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v1.ReimageNodeRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.ReimageNodeRequest build() {
+      com.google.cloud.tpu.v1.ReimageNodeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.ReimageNodeRequest buildPartial() {
+      com.google.cloud.tpu.v1.ReimageNodeRequest result = new com.google.cloud.tpu.v1.ReimageNodeRequest(this);
+      result.name_ = name_;
+      result.tensorflowVersion_ = tensorflowVersion_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v1.ReimageNodeRequest) {
+        return mergeFrom((com.google.cloud.tpu.v1.ReimageNodeRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v1.ReimageNodeRequest other) {
+      if (other == com.google.cloud.tpu.v1.ReimageNodeRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getTensorflowVersion().isEmpty()) {
+        tensorflowVersion_ = other.tensorflowVersion_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.ReimageNodeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.ReimageNodeRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object tensorflowVersion_ = "";
+    /**
+     * <pre>
+     * The version for reimage to create.
+     * </pre>
+     *
+     * <code>string tensorflow_version = 2;</code>
+     * @return The tensorflowVersion.
+     */
+    public java.lang.String getTensorflowVersion() {
+      java.lang.Object ref = tensorflowVersion_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        tensorflowVersion_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The version for reimage to create.
+     * </pre>
+     *
+     * <code>string tensorflow_version = 2;</code>
+     * @return The bytes for tensorflowVersion.
+     */
+    public com.google.protobuf.ByteString
+        getTensorflowVersionBytes() {
+      java.lang.Object ref = tensorflowVersion_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        tensorflowVersion_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The version for reimage to create.
+     * </pre>
+     *
+     * <code>string tensorflow_version = 2;</code>
+     * @param value The tensorflowVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTensorflowVersion(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      tensorflowVersion_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The version for reimage to create.
+     * </pre>
+     *
+     * <code>string tensorflow_version = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearTensorflowVersion() {
+      
+      tensorflowVersion_ = getDefaultInstance().getTensorflowVersion();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The version for reimage to create.
+     * </pre>
+     *
+     * <code>string tensorflow_version = 2;</code>
+     * @param value The bytes for tensorflowVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTensorflowVersionBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      tensorflowVersion_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.ReimageNodeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.ReimageNodeRequest)
+  private static final com.google.cloud.tpu.v1.ReimageNodeRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.ReimageNodeRequest();
+  }
+
+  public static com.google.cloud.tpu.v1.ReimageNodeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ReimageNodeRequest>
+      PARSER = new com.google.protobuf.AbstractParser<ReimageNodeRequest>() {
+    @java.lang.Override
+    public ReimageNodeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ReimageNodeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ReimageNodeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ReimageNodeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.ReimageNodeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequestOrBuilder.java
new file mode 100644
index 000000000000..3d0b1bfc7df5
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ReimageNodeRequestOrBuilder.java
@@ -0,0 +1,49 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface ReimageNodeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.ReimageNodeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+
+  /**
+   * <pre>
+   * The version for reimage to create.
+   * </pre>
+   *
+   * <code>string tensorflow_version = 2;</code>
+   * @return The tensorflowVersion.
+   */
+  java.lang.String getTensorflowVersion();
+  /**
+   * <pre>
+   * The version for reimage to create.
+   * </pre>
+   *
+   * <code>string tensorflow_version = 2;</code>
+   * @return The bytes for tensorflowVersion.
+   */
+  com.google.protobuf.ByteString
+      getTensorflowVersionBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfig.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfig.java
new file mode 100644
index 000000000000..00d16e866c3f
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfig.java
@@ -0,0 +1,591 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Sets the scheduling options for this node.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.SchedulingConfig}
+ */
+public final class SchedulingConfig extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.SchedulingConfig)
+    SchedulingConfigOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use SchedulingConfig.newBuilder() to construct.
+  private SchedulingConfig(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private SchedulingConfig() {
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new SchedulingConfig();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private SchedulingConfig(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
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+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.SchedulingConfig parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v1.SchedulingConfig parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
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+  public static Builder newBuilder(com.google.cloud.tpu.v1.SchedulingConfig prototype) {
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+  }
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+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
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+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.SchedulingConfig}
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+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.SchedulingConfig)
+      com.google.cloud.tpu.v1.SchedulingConfigOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_SchedulingConfig_descriptor;
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+      reserved_ = false;
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+      return this;
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+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_SchedulingConfig_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.SchedulingConfig getDefaultInstanceForType() {
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+      } else {
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+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v1.SchedulingConfig other) {
+      if (other == com.google.cloud.tpu.v1.SchedulingConfig.getDefaultInstance()) return this;
+      if (other.getPreemptible() != false) {
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+      if (other.getReserved() != false) {
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.SchedulingConfig parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.SchedulingConfig) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
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+          mergeFrom(parsedMessage);
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+      }
+      return this;
+    }
+
+    private boolean preemptible_ ;
+    /**
+     * <pre>
+     * Defines whether the node is preemptible.
+     * </pre>
+     *
+     * <code>bool preemptible = 1;</code>
+     * @return The preemptible.
+     */
+    @java.lang.Override
+    public boolean getPreemptible() {
+      return preemptible_;
+    }
+    /**
+     * <pre>
+     * Defines whether the node is preemptible.
+     * </pre>
+     *
+     * <code>bool preemptible = 1;</code>
+     * @param value The preemptible to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPreemptible(boolean value) {
+      
+      preemptible_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Defines whether the node is preemptible.
+     * </pre>
+     *
+     * <code>bool preemptible = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPreemptible() {
+      
+      preemptible_ = false;
+      onChanged();
+      return this;
+    }
+
+    private boolean reserved_ ;
+    /**
+     * <pre>
+     * Whether the node is created under a reservation.
+     * </pre>
+     *
+     * <code>bool reserved = 2;</code>
+     * @return The reserved.
+     */
+    @java.lang.Override
+    public boolean getReserved() {
+      return reserved_;
+    }
+    /**
+     * <pre>
+     * Whether the node is created under a reservation.
+     * </pre>
+     *
+     * <code>bool reserved = 2;</code>
+     * @param value The reserved to set.
+     * @return This builder for chaining.
+     */
+    public Builder setReserved(boolean value) {
+      
+      reserved_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Whether the node is created under a reservation.
+     * </pre>
+     *
+     * <code>bool reserved = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearReserved() {
+      
+      reserved_ = false;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
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+    @java.lang.Override
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+        final com.google.protobuf.UnknownFieldSet unknownFields) {
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+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.SchedulingConfig)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.SchedulingConfig)
+  private static final com.google.cloud.tpu.v1.SchedulingConfig DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.SchedulingConfig();
+  }
+
+  public static com.google.cloud.tpu.v1.SchedulingConfig getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SchedulingConfig>
+      PARSER = new com.google.protobuf.AbstractParser<SchedulingConfig>() {
+    @java.lang.Override
+    public SchedulingConfig parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new SchedulingConfig(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<SchedulingConfig> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<SchedulingConfig> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.SchedulingConfig getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfigOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfigOrBuilder.java
new file mode 100644
index 000000000000..ee190f21b550
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SchedulingConfigOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface SchedulingConfigOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.SchedulingConfig)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Defines whether the node is preemptible.
+   * </pre>
+   *
+   * <code>bool preemptible = 1;</code>
+   * @return The preemptible.
+   */
+  boolean getPreemptible();
+
+  /**
+   * <pre>
+   * Whether the node is created under a reservation.
+   * </pre>
+   *
+   * <code>bool reserved = 2;</code>
+   * @return The reserved.
+   */
+  boolean getReserved();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequest.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequest.java
new file mode 100644
index 000000000000..c324a2c058c8
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequest.java
@@ -0,0 +1,595 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Request for [StartNode][google.cloud.tpu.v1.Tpu.StartNode].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.StartNodeRequest}
+ */
+public final class StartNodeRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.StartNodeRequest)
+    StartNodeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use StartNodeRequest.newBuilder() to construct.
+  private StartNodeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private StartNodeRequest() {
+    name_ = "";
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+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
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+    return new StartNodeRequest();
+  }
+
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+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
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+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
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+      throw new com.google.protobuf.InvalidProtocolBufferException(
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+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
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+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_StartNodeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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+
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+    public StartNodeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new StartNodeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<StartNodeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<StartNodeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
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+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequestOrBuilder.java
new file mode 100644
index 000000000000..c7b3e0e1275d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StartNodeRequestOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface StartNodeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.StartNodeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
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+  /**
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+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequest.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequest.java
new file mode 100644
index 000000000000..cf72c6728524
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequest.java
@@ -0,0 +1,595 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * Request for [StopNode][google.cloud.tpu.v1.Tpu.StopNode].
+ * </pre>
+ *
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+ */
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+    StopNodeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use StopNodeRequest.newBuilder() to construct.
+  private StopNodeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v1.StopNodeRequest parseFrom(
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v1.StopNodeRequest parseDelimitedFrom(
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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+  public static com.google.cloud.tpu.v1.StopNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v1.StopNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
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+  public static Builder newBuilder(com.google.cloud.tpu.v1.StopNodeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
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+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
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+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for [StopNode][google.cloud.tpu.v1.Tpu.StopNode].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.StopNodeRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.StopNodeRequest)
+      com.google.cloud.tpu.v1.StopNodeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_StopNodeRequest_descriptor;
+    }
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+    private Builder() {
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+        getDescriptorForType() {
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+    }
+
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+    public com.google.cloud.tpu.v1.StopNodeRequest getDefaultInstanceForType() {
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+    public com.google.cloud.tpu.v1.StopNodeRequest build() {
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+    @java.lang.Override
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+      result.name_ = name_;
+      onBuilt();
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+    @java.lang.Override
+    public Builder clone() {
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+        java.lang.Object value) {
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+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
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+    @java.lang.Override
+    public Builder clearOneof(
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+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+      if (other instanceof com.google.cloud.tpu.v1.StopNodeRequest) {
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+        return this;
+      }
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+
+    public Builder mergeFrom(com.google.cloud.tpu.v1.StopNodeRequest other) {
+      if (other == com.google.cloud.tpu.v1.StopNodeRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
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+        onChanged();
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.StopNodeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.StopNodeRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
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+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
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+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.StopNodeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.StopNodeRequest)
+  private static final com.google.cloud.tpu.v1.StopNodeRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.StopNodeRequest();
+  }
+
+  public static com.google.cloud.tpu.v1.StopNodeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<StopNodeRequest>
+      PARSER = new com.google.protobuf.AbstractParser<StopNodeRequest>() {
+    @java.lang.Override
+    public StopNodeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new StopNodeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<StopNodeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<StopNodeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.StopNodeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequestOrBuilder.java
new file mode 100644
index 000000000000..6b652fd17f76
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/StopNodeRequestOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface StopNodeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.StopNodeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Symptom.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Symptom.java
new file mode 100644
index 000000000000..cb56d032c8f0
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Symptom.java
@@ -0,0 +1,1337 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * A Symptom instance.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.Symptom}
+ */
+public final class Symptom extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.Symptom)
+    SymptomOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use Symptom.newBuilder() to construct.
+  private Symptom(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private Symptom() {
+    symptomType_ = 0;
+    details_ = "";
+    workerId_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new Symptom();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private Symptom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            com.google.protobuf.Timestamp.Builder subBuilder = null;
+            if (createTime_ != null) {
+              subBuilder = createTime_.toBuilder();
+            }
+            createTime_ = input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(createTime_);
+              createTime_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          case 16: {
+            int rawValue = input.readEnum();
+
+            symptomType_ = rawValue;
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            details_ = s;
+            break;
+          }
+          case 34: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            workerId_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_Symptom_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_Symptom_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v1.Symptom.class, com.google.cloud.tpu.v1.Symptom.Builder.class);
+  }
+
+  /**
+   * <pre>
+   * SymptomType represents the different types of Symptoms that a TPU can be
+   * at.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.tpu.v1.Symptom.SymptomType}
+   */
+  public enum SymptomType
+      implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     * <pre>
+     * Unspecified symptom.
+     * </pre>
+     *
+     * <code>SYMPTOM_TYPE_UNSPECIFIED = 0;</code>
+     */
+    SYMPTOM_TYPE_UNSPECIFIED(0),
+    /**
+     * <pre>
+     * TPU VM memory is low.
+     * </pre>
+     *
+     * <code>LOW_MEMORY = 1;</code>
+     */
+    LOW_MEMORY(1),
+    /**
+     * <pre>
+     * TPU runtime is out of memory.
+     * </pre>
+     *
+     * <code>OUT_OF_MEMORY = 2;</code>
+     */
+    OUT_OF_MEMORY(2),
+    /**
+     * <pre>
+     * TPU runtime execution has timed out.
+     * </pre>
+     *
+     * <code>EXECUTE_TIMED_OUT = 3;</code>
+     */
+    EXECUTE_TIMED_OUT(3),
+    /**
+     * <pre>
+     * TPU runtime fails to construct a mesh that recognizes each TPU device's
+     * neighbors.
+     * </pre>
+     *
+     * <code>MESH_BUILD_FAIL = 4;</code>
+     */
+    MESH_BUILD_FAIL(4),
+    /**
+     * <pre>
+     * TPU HBM is out of memory.
+     * </pre>
+     *
+     * <code>HBM_OUT_OF_MEMORY = 5;</code>
+     */
+    HBM_OUT_OF_MEMORY(5),
+    /**
+     * <pre>
+     * Abusive behaviors have been identified on the current project.
+     * </pre>
+     *
+     * <code>PROJECT_ABUSE = 6;</code>
+     */
+    PROJECT_ABUSE(6),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     * <pre>
+     * Unspecified symptom.
+     * </pre>
+     *
+     * <code>SYMPTOM_TYPE_UNSPECIFIED = 0;</code>
+     */
+    public static final int SYMPTOM_TYPE_UNSPECIFIED_VALUE = 0;
+    /**
+     * <pre>
+     * TPU VM memory is low.
+     * </pre>
+     *
+     * <code>LOW_MEMORY = 1;</code>
+     */
+    public static final int LOW_MEMORY_VALUE = 1;
+    /**
+     * <pre>
+     * TPU runtime is out of memory.
+     * </pre>
+     *
+     * <code>OUT_OF_MEMORY = 2;</code>
+     */
+    public static final int OUT_OF_MEMORY_VALUE = 2;
+    /**
+     * <pre>
+     * TPU runtime execution has timed out.
+     * </pre>
+     *
+     * <code>EXECUTE_TIMED_OUT = 3;</code>
+     */
+    public static final int EXECUTE_TIMED_OUT_VALUE = 3;
+    /**
+     * <pre>
+     * TPU runtime fails to construct a mesh that recognizes each TPU device's
+     * neighbors.
+     * </pre>
+     *
+     * <code>MESH_BUILD_FAIL = 4;</code>
+     */
+    public static final int MESH_BUILD_FAIL_VALUE = 4;
+    /**
+     * <pre>
+     * TPU HBM is out of memory.
+     * </pre>
+     *
+     * <code>HBM_OUT_OF_MEMORY = 5;</code>
+     */
+    public static final int HBM_OUT_OF_MEMORY_VALUE = 5;
+    /**
+     * <pre>
+     * Abusive behaviors have been identified on the current project.
+     * </pre>
+     *
+     * <code>PROJECT_ABUSE = 6;</code>
+     */
+    public static final int PROJECT_ABUSE_VALUE = 6;
+
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static SymptomType valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static SymptomType forNumber(int value) {
+      switch (value) {
+        case 0: return SYMPTOM_TYPE_UNSPECIFIED;
+        case 1: return LOW_MEMORY;
+        case 2: return OUT_OF_MEMORY;
+        case 3: return EXECUTE_TIMED_OUT;
+        case 4: return MESH_BUILD_FAIL;
+        case 5: return HBM_OUT_OF_MEMORY;
+        case 6: return PROJECT_ABUSE;
+        default: return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<SymptomType>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+    private static final com.google.protobuf.Internal.EnumLiteMap<
+        SymptomType> internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap<SymptomType>() {
+            public SymptomType findValueByNumber(int number) {
+              return SymptomType.forNumber(number);
+            }
+          };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor
+        getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+    public final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptorForType() {
+      return getDescriptor();
+    }
+    public static final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.Symptom.getDescriptor().getEnumTypes().get(0);
+    }
+
+    private static final SymptomType[] VALUES = values();
+
+    public static SymptomType valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private SymptomType(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.tpu.v1.Symptom.SymptomType)
+  }
+
+  public static final int CREATE_TIME_FIELD_NUMBER = 1;
+  private com.google.protobuf.Timestamp createTime_;
+  /**
+   * <pre>
+   * Timestamp when the Symptom is created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return Whether the createTime field is set.
+   */
+  @java.lang.Override
+  public boolean hasCreateTime() {
+    return createTime_ != null;
+  }
+  /**
+   * <pre>
+   * Timestamp when the Symptom is created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return The createTime.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getCreateTime() {
+    return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+  }
+  /**
+   * <pre>
+   * Timestamp when the Symptom is created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+    return getCreateTime();
+  }
+
+  public static final int SYMPTOM_TYPE_FIELD_NUMBER = 2;
+  private int symptomType_;
+  /**
+   * <pre>
+   * Type of the Symptom.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Symptom.SymptomType symptom_type = 2;</code>
+   * @return The enum numeric value on the wire for symptomType.
+   */
+  @java.lang.Override public int getSymptomTypeValue() {
+    return symptomType_;
+  }
+  /**
+   * <pre>
+   * Type of the Symptom.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Symptom.SymptomType symptom_type = 2;</code>
+   * @return The symptomType.
+   */
+  @java.lang.Override public com.google.cloud.tpu.v1.Symptom.SymptomType getSymptomType() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.tpu.v1.Symptom.SymptomType result = com.google.cloud.tpu.v1.Symptom.SymptomType.valueOf(symptomType_);
+    return result == null ? com.google.cloud.tpu.v1.Symptom.SymptomType.UNRECOGNIZED : result;
+  }
+
+  public static final int DETAILS_FIELD_NUMBER = 3;
+  private volatile java.lang.Object details_;
+  /**
+   * <pre>
+   * Detailed information of the current Symptom.
+   * </pre>
+   *
+   * <code>string details = 3;</code>
+   * @return The details.
+   */
+  @java.lang.Override
+  public java.lang.String getDetails() {
+    java.lang.Object ref = details_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      details_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Detailed information of the current Symptom.
+   * </pre>
+   *
+   * <code>string details = 3;</code>
+   * @return The bytes for details.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getDetailsBytes() {
+    java.lang.Object ref = details_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      details_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int WORKER_ID_FIELD_NUMBER = 4;
+  private volatile java.lang.Object workerId_;
+  /**
+   * <pre>
+   * A string used to uniquely distinguish a worker within a TPU node.
+   * </pre>
+   *
+   * <code>string worker_id = 4;</code>
+   * @return The workerId.
+   */
+  @java.lang.Override
+  public java.lang.String getWorkerId() {
+    java.lang.Object ref = workerId_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      workerId_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * A string used to uniquely distinguish a worker within a TPU node.
+   * </pre>
+   *
+   * <code>string worker_id = 4;</code>
+   * @return The bytes for workerId.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getWorkerIdBytes() {
+    java.lang.Object ref = workerId_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      workerId_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (createTime_ != null) {
+      output.writeMessage(1, getCreateTime());
+    }
+    if (symptomType_ != com.google.cloud.tpu.v1.Symptom.SymptomType.SYMPTOM_TYPE_UNSPECIFIED.getNumber()) {
+      output.writeEnum(2, symptomType_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(details_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, details_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(workerId_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, workerId_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (createTime_ != null) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(1, getCreateTime());
+    }
+    if (symptomType_ != com.google.cloud.tpu.v1.Symptom.SymptomType.SYMPTOM_TYPE_UNSPECIFIED.getNumber()) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeEnumSize(2, symptomType_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(details_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, details_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(workerId_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, workerId_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v1.Symptom)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v1.Symptom other = (com.google.cloud.tpu.v1.Symptom) obj;
+
+    if (hasCreateTime() != other.hasCreateTime()) return false;
+    if (hasCreateTime()) {
+      if (!getCreateTime()
+          .equals(other.getCreateTime())) return false;
+    }
+    if (symptomType_ != other.symptomType_) return false;
+    if (!getDetails()
+        .equals(other.getDetails())) return false;
+    if (!getWorkerId()
+        .equals(other.getWorkerId())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasCreateTime()) {
+      hash = (37 * hash) + CREATE_TIME_FIELD_NUMBER;
+      hash = (53 * hash) + getCreateTime().hashCode();
+    }
+    hash = (37 * hash) + SYMPTOM_TYPE_FIELD_NUMBER;
+    hash = (53 * hash) + symptomType_;
+    hash = (37 * hash) + DETAILS_FIELD_NUMBER;
+    hash = (53 * hash) + getDetails().hashCode();
+    hash = (37 * hash) + WORKER_ID_FIELD_NUMBER;
+    hash = (53 * hash) + getWorkerId().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v1.Symptom parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.Symptom parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.Symptom parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.Symptom parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.Symptom parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.Symptom parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.Symptom parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.Symptom parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.Symptom parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.Symptom parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.Symptom parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.Symptom parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v1.Symptom prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A Symptom instance.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.Symptom}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.Symptom)
+      com.google.cloud.tpu.v1.SymptomOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_Symptom_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_Symptom_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v1.Symptom.class, com.google.cloud.tpu.v1.Symptom.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v1.Symptom.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (createTimeBuilder_ == null) {
+        createTime_ = null;
+      } else {
+        createTime_ = null;
+        createTimeBuilder_ = null;
+      }
+      symptomType_ = 0;
+
+      details_ = "";
+
+      workerId_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_Symptom_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.Symptom getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v1.Symptom.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.Symptom build() {
+      com.google.cloud.tpu.v1.Symptom result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.Symptom buildPartial() {
+      com.google.cloud.tpu.v1.Symptom result = new com.google.cloud.tpu.v1.Symptom(this);
+      if (createTimeBuilder_ == null) {
+        result.createTime_ = createTime_;
+      } else {
+        result.createTime_ = createTimeBuilder_.build();
+      }
+      result.symptomType_ = symptomType_;
+      result.details_ = details_;
+      result.workerId_ = workerId_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v1.Symptom) {
+        return mergeFrom((com.google.cloud.tpu.v1.Symptom)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v1.Symptom other) {
+      if (other == com.google.cloud.tpu.v1.Symptom.getDefaultInstance()) return this;
+      if (other.hasCreateTime()) {
+        mergeCreateTime(other.getCreateTime());
+      }
+      if (other.symptomType_ != 0) {
+        setSymptomTypeValue(other.getSymptomTypeValue());
+      }
+      if (!other.getDetails().isEmpty()) {
+        details_ = other.details_;
+        onChanged();
+      }
+      if (!other.getWorkerId().isEmpty()) {
+        workerId_ = other.workerId_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.Symptom parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.Symptom) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.protobuf.Timestamp createTime_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> createTimeBuilder_;
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     * @return Whether the createTime field is set.
+     */
+    public boolean hasCreateTime() {
+      return createTimeBuilder_ != null || createTime_ != null;
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     * @return The createTime.
+     */
+    public com.google.protobuf.Timestamp getCreateTime() {
+      if (createTimeBuilder_ == null) {
+        return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+      } else {
+        return createTimeBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder setCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        createTime_ = value;
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder setCreateTime(
+        com.google.protobuf.Timestamp.Builder builderForValue) {
+      if (createTimeBuilder_ == null) {
+        createTime_ = builderForValue.build();
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder mergeCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (createTime_ != null) {
+          createTime_ =
+            com.google.protobuf.Timestamp.newBuilder(createTime_).mergeFrom(value).buildPartial();
+        } else {
+          createTime_ = value;
+        }
+        onChanged();
+      } else {
+        createTimeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder clearCreateTime() {
+      if (createTimeBuilder_ == null) {
+        createTime_ = null;
+        onChanged();
+      } else {
+        createTime_ = null;
+        createTimeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public com.google.protobuf.Timestamp.Builder getCreateTimeBuilder() {
+      
+      onChanged();
+      return getCreateTimeFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+      if (createTimeBuilder_ != null) {
+        return createTimeBuilder_.getMessageOrBuilder();
+      } else {
+        return createTime_ == null ?
+            com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+      }
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
+        getCreateTimeFieldBuilder() {
+      if (createTimeBuilder_ == null) {
+        createTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
+                getCreateTime(),
+                getParentForChildren(),
+                isClean());
+        createTime_ = null;
+      }
+      return createTimeBuilder_;
+    }
+
+    private int symptomType_ = 0;
+    /**
+     * <pre>
+     * Type of the Symptom.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Symptom.SymptomType symptom_type = 2;</code>
+     * @return The enum numeric value on the wire for symptomType.
+     */
+    @java.lang.Override public int getSymptomTypeValue() {
+      return symptomType_;
+    }
+    /**
+     * <pre>
+     * Type of the Symptom.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Symptom.SymptomType symptom_type = 2;</code>
+     * @param value The enum numeric value on the wire for symptomType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSymptomTypeValue(int value) {
+      
+      symptomType_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Type of the Symptom.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Symptom.SymptomType symptom_type = 2;</code>
+     * @return The symptomType.
+     */
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.Symptom.SymptomType getSymptomType() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.tpu.v1.Symptom.SymptomType result = com.google.cloud.tpu.v1.Symptom.SymptomType.valueOf(symptomType_);
+      return result == null ? com.google.cloud.tpu.v1.Symptom.SymptomType.UNRECOGNIZED : result;
+    }
+    /**
+     * <pre>
+     * Type of the Symptom.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Symptom.SymptomType symptom_type = 2;</code>
+     * @param value The symptomType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSymptomType(com.google.cloud.tpu.v1.Symptom.SymptomType value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      
+      symptomType_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Type of the Symptom.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v1.Symptom.SymptomType symptom_type = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearSymptomType() {
+      
+      symptomType_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object details_ = "";
+    /**
+     * <pre>
+     * Detailed information of the current Symptom.
+     * </pre>
+     *
+     * <code>string details = 3;</code>
+     * @return The details.
+     */
+    public java.lang.String getDetails() {
+      java.lang.Object ref = details_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        details_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Detailed information of the current Symptom.
+     * </pre>
+     *
+     * <code>string details = 3;</code>
+     * @return The bytes for details.
+     */
+    public com.google.protobuf.ByteString
+        getDetailsBytes() {
+      java.lang.Object ref = details_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        details_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Detailed information of the current Symptom.
+     * </pre>
+     *
+     * <code>string details = 3;</code>
+     * @param value The details to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDetails(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      details_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Detailed information of the current Symptom.
+     * </pre>
+     *
+     * <code>string details = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearDetails() {
+      
+      details_ = getDefaultInstance().getDetails();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Detailed information of the current Symptom.
+     * </pre>
+     *
+     * <code>string details = 3;</code>
+     * @param value The bytes for details to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDetailsBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      details_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object workerId_ = "";
+    /**
+     * <pre>
+     * A string used to uniquely distinguish a worker within a TPU node.
+     * </pre>
+     *
+     * <code>string worker_id = 4;</code>
+     * @return The workerId.
+     */
+    public java.lang.String getWorkerId() {
+      java.lang.Object ref = workerId_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        workerId_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * A string used to uniquely distinguish a worker within a TPU node.
+     * </pre>
+     *
+     * <code>string worker_id = 4;</code>
+     * @return The bytes for workerId.
+     */
+    public com.google.protobuf.ByteString
+        getWorkerIdBytes() {
+      java.lang.Object ref = workerId_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        workerId_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * A string used to uniquely distinguish a worker within a TPU node.
+     * </pre>
+     *
+     * <code>string worker_id = 4;</code>
+     * @param value The workerId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setWorkerId(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      workerId_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * A string used to uniquely distinguish a worker within a TPU node.
+     * </pre>
+     *
+     * <code>string worker_id = 4;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearWorkerId() {
+      
+      workerId_ = getDefaultInstance().getWorkerId();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * A string used to uniquely distinguish a worker within a TPU node.
+     * </pre>
+     *
+     * <code>string worker_id = 4;</code>
+     * @param value The bytes for workerId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setWorkerIdBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      workerId_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.Symptom)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.Symptom)
+  private static final com.google.cloud.tpu.v1.Symptom DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.Symptom();
+  }
+
+  public static com.google.cloud.tpu.v1.Symptom getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Symptom>
+      PARSER = new com.google.protobuf.AbstractParser<Symptom>() {
+    @java.lang.Override
+    public Symptom parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new Symptom(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<Symptom> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Symptom> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.Symptom getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SymptomOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SymptomOrBuilder.java
new file mode 100644
index 000000000000..60cfa7da86a9
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/SymptomOrBuilder.java
@@ -0,0 +1,95 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface SymptomOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.Symptom)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Timestamp when the Symptom is created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return Whether the createTime field is set.
+   */
+  boolean hasCreateTime();
+  /**
+   * <pre>
+   * Timestamp when the Symptom is created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return The createTime.
+   */
+  com.google.protobuf.Timestamp getCreateTime();
+  /**
+   * <pre>
+   * Timestamp when the Symptom is created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   */
+  com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder();
+
+  /**
+   * <pre>
+   * Type of the Symptom.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Symptom.SymptomType symptom_type = 2;</code>
+   * @return The enum numeric value on the wire for symptomType.
+   */
+  int getSymptomTypeValue();
+  /**
+   * <pre>
+   * Type of the Symptom.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v1.Symptom.SymptomType symptom_type = 2;</code>
+   * @return The symptomType.
+   */
+  com.google.cloud.tpu.v1.Symptom.SymptomType getSymptomType();
+
+  /**
+   * <pre>
+   * Detailed information of the current Symptom.
+   * </pre>
+   *
+   * <code>string details = 3;</code>
+   * @return The details.
+   */
+  java.lang.String getDetails();
+  /**
+   * <pre>
+   * Detailed information of the current Symptom.
+   * </pre>
+   *
+   * <code>string details = 3;</code>
+   * @return The bytes for details.
+   */
+  com.google.protobuf.ByteString
+      getDetailsBytes();
+
+  /**
+   * <pre>
+   * A string used to uniquely distinguish a worker within a TPU node.
+   * </pre>
+   *
+   * <code>string worker_id = 4;</code>
+   * @return The workerId.
+   */
+  java.lang.String getWorkerId();
+  /**
+   * <pre>
+   * A string used to uniquely distinguish a worker within a TPU node.
+   * </pre>
+   *
+   * <code>string worker_id = 4;</code>
+   * @return The bytes for workerId.
+   */
+  com.google.protobuf.ByteString
+      getWorkerIdBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersion.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersion.java
new file mode 100644
index 000000000000..06bc7253f8ee
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersion.java
@@ -0,0 +1,761 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+/**
+ * <pre>
+ * A tensorflow version that a Node can be configured with.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v1.TensorFlowVersion}
+ */
+public final class TensorFlowVersion extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v1.TensorFlowVersion)
+    TensorFlowVersionOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use TensorFlowVersion.newBuilder() to construct.
+  private TensorFlowVersion(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private TensorFlowVersion() {
+    name_ = "";
+    version_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new TensorFlowVersion();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private TensorFlowVersion(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            version_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_TensorFlowVersion_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_TensorFlowVersion_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v1.TensorFlowVersion.class, com.google.cloud.tpu.v1.TensorFlowVersion.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int VERSION_FIELD_NUMBER = 2;
+  private volatile java.lang.Object version_;
+  /**
+   * <pre>
+   * the tensorflow version.
+   * </pre>
+   *
+   * <code>string version = 2;</code>
+   * @return The version.
+   */
+  @java.lang.Override
+  public java.lang.String getVersion() {
+    java.lang.Object ref = version_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      version_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * the tensorflow version.
+   * </pre>
+   *
+   * <code>string version = 2;</code>
+   * @return The bytes for version.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getVersionBytes() {
+    java.lang.Object ref = version_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      version_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(version_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, version_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(version_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, version_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v1.TensorFlowVersion)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v1.TensorFlowVersion other = (com.google.cloud.tpu.v1.TensorFlowVersion) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!getVersion()
+        .equals(other.getVersion())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + VERSION_FIELD_NUMBER;
+    hash = (53 * hash) + getVersion().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v1.TensorFlowVersion parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.TensorFlowVersion parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.TensorFlowVersion parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.TensorFlowVersion parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.TensorFlowVersion parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v1.TensorFlowVersion parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.TensorFlowVersion parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.TensorFlowVersion parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.TensorFlowVersion parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.TensorFlowVersion parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v1.TensorFlowVersion parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v1.TensorFlowVersion parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v1.TensorFlowVersion prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A tensorflow version that a Node can be configured with.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v1.TensorFlowVersion}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v1.TensorFlowVersion)
+      com.google.cloud.tpu.v1.TensorFlowVersionOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_TensorFlowVersion_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_TensorFlowVersion_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v1.TensorFlowVersion.class, com.google.cloud.tpu.v1.TensorFlowVersion.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v1.TensorFlowVersion.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      version_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v1.CloudTpuProto.internal_static_google_cloud_tpu_v1_TensorFlowVersion_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.TensorFlowVersion getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v1.TensorFlowVersion.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.TensorFlowVersion build() {
+      com.google.cloud.tpu.v1.TensorFlowVersion result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v1.TensorFlowVersion buildPartial() {
+      com.google.cloud.tpu.v1.TensorFlowVersion result = new com.google.cloud.tpu.v1.TensorFlowVersion(this);
+      result.name_ = name_;
+      result.version_ = version_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v1.TensorFlowVersion) {
+        return mergeFrom((com.google.cloud.tpu.v1.TensorFlowVersion)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v1.TensorFlowVersion other) {
+      if (other == com.google.cloud.tpu.v1.TensorFlowVersion.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getVersion().isEmpty()) {
+        version_ = other.version_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v1.TensorFlowVersion parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v1.TensorFlowVersion) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object version_ = "";
+    /**
+     * <pre>
+     * the tensorflow version.
+     * </pre>
+     *
+     * <code>string version = 2;</code>
+     * @return The version.
+     */
+    public java.lang.String getVersion() {
+      java.lang.Object ref = version_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        version_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * the tensorflow version.
+     * </pre>
+     *
+     * <code>string version = 2;</code>
+     * @return The bytes for version.
+     */
+    public com.google.protobuf.ByteString
+        getVersionBytes() {
+      java.lang.Object ref = version_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        version_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * the tensorflow version.
+     * </pre>
+     *
+     * <code>string version = 2;</code>
+     * @param value The version to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVersion(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      version_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * the tensorflow version.
+     * </pre>
+     *
+     * <code>string version = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearVersion() {
+      
+      version_ = getDefaultInstance().getVersion();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * the tensorflow version.
+     * </pre>
+     *
+     * <code>string version = 2;</code>
+     * @param value The bytes for version to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVersionBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      version_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v1.TensorFlowVersion)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v1.TensorFlowVersion)
+  private static final com.google.cloud.tpu.v1.TensorFlowVersion DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v1.TensorFlowVersion();
+  }
+
+  public static com.google.cloud.tpu.v1.TensorFlowVersion getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<TensorFlowVersion>
+      PARSER = new com.google.protobuf.AbstractParser<TensorFlowVersion>() {
+    @java.lang.Override
+    public TensorFlowVersion parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new TensorFlowVersion(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<TensorFlowVersion> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<TensorFlowVersion> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v1.TensorFlowVersion getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersionName.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersionName.java
new file mode 100644
index 000000000000..41dccb833939
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersionName.java
@@ -0,0 +1,231 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+@Generated("by gapic-generator-java")
+public class TensorFlowVersionName implements ResourceName {
+  private static final PathTemplate PROJECT_LOCATION_TENSOR_FLOW_VERSION =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/tensorFlowVersions/{tensor_flow_version}");
+  private volatile Map<String, String> fieldValuesMap;
+  private final String project;
+  private final String location;
+  private final String tensorFlowVersion;
+
+  @Deprecated
+  protected TensorFlowVersionName() {
+    project = null;
+    location = null;
+    tensorFlowVersion = null;
+  }
+
+  private TensorFlowVersionName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    tensorFlowVersion = Preconditions.checkNotNull(builder.getTensorFlowVersion());
+  }
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getTensorFlowVersion() {
+    return tensorFlowVersion;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static TensorFlowVersionName of(
+      String project, String location, String tensorFlowVersion) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setTensorFlowVersion(tensorFlowVersion)
+        .build();
+  }
+
+  public static String format(String project, String location, String tensorFlowVersion) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setTensorFlowVersion(tensorFlowVersion)
+        .build()
+        .toString();
+  }
+
+  public static TensorFlowVersionName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PROJECT_LOCATION_TENSOR_FLOW_VERSION.validatedMatch(
+            formattedString, "TensorFlowVersionName.parse: formattedString not in valid format");
+    return of(
+        matchMap.get("project"), matchMap.get("location"), matchMap.get("tensor_flow_version"));
+  }
+
+  public static List<TensorFlowVersionName> parseList(List<String> formattedStrings) {
+    List<TensorFlowVersionName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<TensorFlowVersionName> values) {
+    List<String> list = new ArrayList<>(values.size());
+    for (TensorFlowVersionName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT_LOCATION_TENSOR_FLOW_VERSION.matches(formattedString);
+  }
+
+  @Override
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          if (tensorFlowVersion != null) {
+            fieldMapBuilder.put("tensor_flow_version", tensorFlowVersion);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PROJECT_LOCATION_TENSOR_FLOW_VERSION.instantiate(
+        "project", project, "location", location, "tensor_flow_version", tensorFlowVersion);
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      TensorFlowVersionName that = ((TensorFlowVersionName) o);
+      return Objects.equals(this.project, that.project)
+          && Objects.equals(this.location, that.location)
+          && Objects.equals(this.tensorFlowVersion, that.tensorFlowVersion);
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    h *= 1000003;
+    h ^= Objects.hashCode(tensorFlowVersion);
+    return h;
+  }
+
+  /**
+   * Builder for projects/{project}/locations/{location}/tensorFlowVersions/{tensor_flow_version}.
+   */
+  public static class Builder {
+    private String project;
+    private String location;
+    private String tensorFlowVersion;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getTensorFlowVersion() {
+      return tensorFlowVersion;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setTensorFlowVersion(String tensorFlowVersion) {
+      this.tensorFlowVersion = tensorFlowVersion;
+      return this;
+    }
+
+    private Builder(TensorFlowVersionName tensorFlowVersionName) {
+      this.project = tensorFlowVersionName.project;
+      this.location = tensorFlowVersionName.location;
+      this.tensorFlowVersion = tensorFlowVersionName.tensorFlowVersion;
+    }
+
+    public TensorFlowVersionName build() {
+      return new TensorFlowVersionName(this);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersionOrBuilder.java b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersionOrBuilder.java
new file mode 100644
index 000000000000..fe0475ee89cd
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/TensorFlowVersionOrBuilder.java
@@ -0,0 +1,49 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v1;
+
+public interface TensorFlowVersionOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v1.TensorFlowVersion)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+
+  /**
+   * <pre>
+   * the tensorflow version.
+   * </pre>
+   *
+   * <code>string version = 2;</code>
+   * @return The version.
+   */
+  java.lang.String getVersion();
+  /**
+   * <pre>
+   * the tensorflow version.
+   * </pre>
+   *
+   * <code>string version = 2;</code>
+   * @return The bytes for version.
+   */
+  com.google.protobuf.ByteString
+      getVersionBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/proto/google/cloud/tpu/v1/cloud_tpu.proto b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/proto/google/cloud/tpu/v1/cloud_tpu.proto
new file mode 100644
index 000000000000..08e83550b1f7
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/proto-google-cloud-tpu-v1/src/main/proto/google/cloud/tpu/v1/cloud_tpu.proto
@@ -0,0 +1,622 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.tpu.v1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/longrunning/operations.proto";
+import "google/protobuf/timestamp.proto";
+
+option go_package = "google.golang.org/genproto/googleapis/cloud/tpu/v1;tpu";
+option java_multiple_files = true;
+option java_outer_classname = "CloudTpuProto";
+option java_package = "com.google.cloud.tpu.v1";
+
+// Manages TPU nodes and other resources
+//
+// TPU API v1
+service Tpu {
+  option (google.api.default_host) = "tpu.googleapis.com";
+  option (google.api.oauth_scopes) = "https://www.googleapis.com/auth/cloud-platform";
+
+  // Lists nodes.
+  rpc ListNodes(ListNodesRequest) returns (ListNodesResponse) {
+    option (google.api.http) = {
+      get: "/v1/{parent=projects/*/locations/*}/nodes"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Gets the details of a node.
+  rpc GetNode(GetNodeRequest) returns (Node) {
+    option (google.api.http) = {
+      get: "/v1/{name=projects/*/locations/*/nodes/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Creates a node.
+  rpc CreateNode(CreateNodeRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v1/{parent=projects/*/locations/*}/nodes"
+      body: "node"
+    };
+    option (google.api.method_signature) = "parent,node,node_id";
+    option (google.longrunning.operation_info) = {
+      response_type: "Node"
+      metadata_type: "OperationMetadata"
+    };
+  }
+
+  // Deletes a node.
+  rpc DeleteNode(DeleteNodeRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      delete: "/v1/{name=projects/*/locations/*/nodes/*}"
+    };
+    option (google.api.method_signature) = "name";
+    option (google.longrunning.operation_info) = {
+      response_type: "Node"
+      metadata_type: "OperationMetadata"
+    };
+  }
+
+  // Reimages a node's OS.
+  rpc ReimageNode(ReimageNodeRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v1/{name=projects/*/locations/*/nodes/*}:reimage"
+      body: "*"
+    };
+    option (google.longrunning.operation_info) = {
+      response_type: "Node"
+      metadata_type: "OperationMetadata"
+    };
+  }
+
+  // Stops a node.
+  rpc StopNode(StopNodeRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v1/{name=projects/*/locations/*/nodes/*}:stop"
+      body: "*"
+    };
+    option (google.longrunning.operation_info) = {
+      response_type: "Node"
+      metadata_type: "OperationMetadata"
+    };
+  }
+
+  // Starts a node.
+  rpc StartNode(StartNodeRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v1/{name=projects/*/locations/*/nodes/*}:start"
+      body: "*"
+    };
+    option (google.longrunning.operation_info) = {
+      response_type: "Node"
+      metadata_type: "OperationMetadata"
+    };
+  }
+
+  // List TensorFlow versions supported by this API.
+  rpc ListTensorFlowVersions(ListTensorFlowVersionsRequest) returns (ListTensorFlowVersionsResponse) {
+    option (google.api.http) = {
+      get: "/v1/{parent=projects/*/locations/*}/tensorflowVersions"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Gets TensorFlow Version.
+  rpc GetTensorFlowVersion(GetTensorFlowVersionRequest) returns (TensorFlowVersion) {
+    option (google.api.http) = {
+      get: "/v1/{name=projects/*/locations/*/tensorflowVersions/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Lists accelerator types supported by this API.
+  rpc ListAcceleratorTypes(ListAcceleratorTypesRequest) returns (ListAcceleratorTypesResponse) {
+    option (google.api.http) = {
+      get: "/v1/{parent=projects/*/locations/*}/acceleratorTypes"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Gets AcceleratorType.
+  rpc GetAcceleratorType(GetAcceleratorTypeRequest) returns (AcceleratorType) {
+    option (google.api.http) = {
+      get: "/v1/{name=projects/*/locations/*/acceleratorTypes/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+}
+
+// Sets the scheduling options for this node.
+message SchedulingConfig {
+  // Defines whether the node is preemptible.
+  bool preemptible = 1;
+
+  // Whether the node is created under a reservation.
+  bool reserved = 2;
+}
+
+// A network endpoint over which a TPU worker can be reached.
+message NetworkEndpoint {
+  // The IP address of this network endpoint.
+  string ip_address = 1;
+
+  // The port of this network endpoint.
+  int32 port = 2;
+}
+
+// A TPU instance.
+message Node {
+  option (google.api.resource) = {
+    type: "tpu.googleapis.com/Node"
+    pattern: "projects/{project}/locations/{location}/nodes/{node}"
+  };
+
+  // Represents the different states of a TPU node during its lifecycle.
+  enum State {
+    // TPU node state is not known/set.
+    STATE_UNSPECIFIED = 0;
+
+    // TPU node is being created.
+    CREATING = 1;
+
+    // TPU node has been created and is fully usable.
+    READY = 2;
+
+    // TPU node is restarting.
+    RESTARTING = 3;
+
+    // TPU node is undergoing reimaging.
+    REIMAGING = 4;
+
+    // TPU node is being deleted.
+    DELETING = 5;
+
+    // TPU node is being repaired and may be unusable. Details can be
+    // found in the `help_description` field.
+    REPAIRING = 6;
+
+    // TPU node is stopped.
+    STOPPED = 8;
+
+    // TPU node is currently stopping.
+    STOPPING = 9;
+
+    // TPU node is currently starting.
+    STARTING = 10;
+
+    // TPU node has been preempted. Only applies to Preemptible TPU Nodes.
+    PREEMPTED = 11;
+
+    // TPU node has been terminated due to maintenance or has reached the end of
+    // its life cycle (for preemptible nodes).
+    TERMINATED = 12;
+
+    // TPU node is currently hiding.
+    HIDING = 13;
+
+    // TPU node has been hidden.
+    HIDDEN = 14;
+
+    // TPU node is currently unhiding.
+    UNHIDING = 15;
+  }
+
+  // Health defines the status of a TPU node as reported by
+  // Health Monitor.
+  enum Health {
+    // Health status is unknown: not initialized or failed to retrieve.
+    HEALTH_UNSPECIFIED = 0;
+
+    // The resource is healthy.
+    HEALTHY = 1;
+
+    // The resource is unhealthy.
+    DEPRECATED_UNHEALTHY = 2;
+
+    // The resource is unresponsive.
+    TIMEOUT = 3;
+
+    // The in-guest ML stack is unhealthy.
+    UNHEALTHY_TENSORFLOW = 4;
+
+    // The node is under maintenance/priority boost caused rescheduling and
+    // will resume running once rescheduled.
+    UNHEALTHY_MAINTENANCE = 5;
+  }
+
+  // TPU API Version.
+  enum ApiVersion {
+    // API version is unknown.
+    API_VERSION_UNSPECIFIED = 0;
+
+    // TPU API V1Alpha1 version.
+    V1_ALPHA1 = 1;
+
+    // TPU API V1 version.
+    V1 = 2;
+
+    // TPU API V2Alpha1 version.
+    V2_ALPHA1 = 3;
+  }
+
+  // Output only. Immutable. The name of the TPU
+  string name = 1 [
+    (google.api.field_behavior) = IMMUTABLE,
+    (google.api.field_behavior) = OUTPUT_ONLY
+  ];
+
+  // The user-supplied description of the TPU. Maximum of 512 characters.
+  string description = 3;
+
+  // Required. The type of hardware accelerators associated with this node.
+  string accelerator_type = 5 [(google.api.field_behavior) = REQUIRED];
+
+  // Output only. DEPRECATED! Use network_endpoints instead.
+  // The network address for the TPU Node as visible to Compute Engine
+  // instances.
+  string ip_address = 8 [deprecated = true];
+
+  // Output only. DEPRECATED! Use network_endpoints instead.
+  // The network port for the TPU Node as visible to Compute Engine instances.
+  string port = 14 [deprecated = true];
+
+  // Output only. The current state for the TPU Node.
+  State state = 9 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Output only. If this field is populated, it contains a description of why the TPU Node
+  // is unhealthy.
+  string health_description = 10 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Required. The version of Tensorflow running in the Node.
+  string tensorflow_version = 11 [(google.api.field_behavior) = REQUIRED];
+
+  // The name of a network they wish to peer the TPU node to. It must be a
+  // preexisting Compute Engine network inside of the project on which this API
+  // has been activated. If none is provided, "default" will be used.
+  string network = 12;
+
+  // The CIDR block that the TPU node will use when selecting an IP address.
+  // This CIDR block must be a /29 block; the Compute Engine networks API
+  // forbids a smaller block, and using a larger block would be wasteful (a
+  // node can only consume one IP address). Errors will occur if the CIDR block
+  // has already been used for a currently existing TPU node, the CIDR block
+  // conflicts with any subnetworks in the user's provided network, or the
+  // provided network is peered with another network that is using that CIDR
+  // block.
+  string cidr_block = 13;
+
+  // Output only. The service account used to run the tensor flow services within the node.
+  // To share resources, including Google Cloud Storage data, with the
+  // Tensorflow job running in the Node, this account must have permissions to
+  // that data.
+  string service_account = 15 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Output only. The time when the node was created.
+  google.protobuf.Timestamp create_time = 16 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // The scheduling options for this node.
+  SchedulingConfig scheduling_config = 17;
+
+  // Output only. The network endpoints where TPU workers can be accessed and
+  // sent work. It is recommended that Tensorflow clients of the node reach out
+  // to the 0th entry in this map first.
+  repeated NetworkEndpoint network_endpoints = 21 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // The health status of the TPU node.
+  Health health = 22;
+
+  // Resource labels to represent user-provided metadata.
+  map<string, string> labels = 24;
+
+  // Whether the VPC peering for the node is set up through Service Networking
+  // API. The VPC Peering should be set up before provisioning the node.
+  // If this field is set, cidr_block field should not be specified. If the
+  // network, that you want to peer the TPU Node to, is Shared VPC networks,
+  // the node must be created with this this field enabled.
+  bool use_service_networking = 27;
+
+  // Output only. The API version that created this Node.
+  ApiVersion api_version = 38 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Output only. The Symptoms that have occurred to the TPU Node.
+  repeated Symptom symptoms = 39 [(google.api.field_behavior) = OUTPUT_ONLY];
+}
+
+// Request for [ListNodes][google.cloud.tpu.v1.Tpu.ListNodes].
+message ListNodesRequest {
+  // Required. The parent resource name.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "tpu.googleapis.com/Node"
+    }
+  ];
+
+  // The maximum number of items to return.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous List request, if any.
+  string page_token = 3;
+}
+
+// Response for [ListNodes][google.cloud.tpu.v1.Tpu.ListNodes].
+message ListNodesResponse {
+  // The listed nodes.
+  repeated Node nodes = 1;
+
+  // The next page token or empty if none.
+  string next_page_token = 2;
+
+  // Locations that could not be reached.
+  repeated string unreachable = 3;
+}
+
+// Request for [GetNode][google.cloud.tpu.v1.Tpu.GetNode].
+message GetNodeRequest {
+  // Required. The resource name.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "tpu.googleapis.com/Node"
+    }
+  ];
+}
+
+// Request for [CreateNode][google.cloud.tpu.v1.Tpu.CreateNode].
+message CreateNodeRequest {
+  // Required. The parent resource name.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      child_type: "tpu.googleapis.com/Node"
+    }
+  ];
+
+  // The unqualified resource name.
+  string node_id = 2;
+
+  // Required. The node.
+  Node node = 3 [(google.api.field_behavior) = REQUIRED];
+}
+
+// Request for [DeleteNode][google.cloud.tpu.v1.Tpu.DeleteNode].
+message DeleteNodeRequest {
+  // Required. The resource name.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "tpu.googleapis.com/Node"
+    }
+  ];
+}
+
+// Request for [ReimageNode][google.cloud.tpu.v1.Tpu.ReimageNode].
+message ReimageNodeRequest {
+  // The resource name.
+  string name = 1;
+
+  // The version for reimage to create.
+  string tensorflow_version = 2;
+}
+
+// Request for [StopNode][google.cloud.tpu.v1.Tpu.StopNode].
+message StopNodeRequest {
+  // The resource name.
+  string name = 1;
+}
+
+// Request for [StartNode][google.cloud.tpu.v1.Tpu.StartNode].
+message StartNodeRequest {
+  // The resource name.
+  string name = 1;
+}
+
+// A tensorflow version that a Node can be configured with.
+message TensorFlowVersion {
+  option (google.api.resource) = {
+    type: "tpu.googleapis.com/TensorFlowVersion"
+    pattern: "projects/{project}/locations/{location}/tensorFlowVersions/{tensor_flow_version}"
+  };
+
+  // The resource name.
+  string name = 1;
+
+  // the tensorflow version.
+  string version = 2;
+}
+
+// Request for [GetTensorFlowVersion][google.cloud.tpu.v1.Tpu.GetTensorFlowVersion].
+message GetTensorFlowVersionRequest {
+  // Required. The resource name.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "tpu.googleapis.com/TensorFlowVersion"
+    }
+  ];
+}
+
+// Request for [ListTensorFlowVersions][google.cloud.tpu.v1.Tpu.ListTensorFlowVersions].
+message ListTensorFlowVersionsRequest {
+  // Required. The parent resource name.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "tpu.googleapis.com/TensorFlowVersion"
+    }
+  ];
+
+  // The maximum number of items to return.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous List request, if any.
+  string page_token = 3;
+
+  // List filter.
+  string filter = 5;
+
+  // Sort results.
+  string order_by = 6;
+}
+
+// Response for [ListTensorFlowVersions][google.cloud.tpu.v1.Tpu.ListTensorFlowVersions].
+message ListTensorFlowVersionsResponse {
+  // The listed nodes.
+  repeated TensorFlowVersion tensorflow_versions = 1;
+
+  // The next page token or empty if none.
+  string next_page_token = 2;
+
+  // Locations that could not be reached.
+  repeated string unreachable = 3;
+}
+
+// A accelerator type that a Node can be configured with.
+message AcceleratorType {
+  option (google.api.resource) = {
+    type: "tpu.googleapis.com/AcceleratorType"
+    pattern: "projects/{project}/locations/{location}/acceleratorTypes/{accelerator_type}"
+  };
+
+  // The resource name.
+  string name = 1;
+
+  // the accelerator type.
+  string type = 2;
+}
+
+// Request for [GetAcceleratorType][google.cloud.tpu.v1.Tpu.GetAcceleratorType].
+message GetAcceleratorTypeRequest {
+  // Required. The resource name.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "tpu.googleapis.com/AcceleratorType"
+    }
+  ];
+}
+
+// Request for [ListAcceleratorTypes][google.cloud.tpu.v1.Tpu.ListAcceleratorTypes].
+message ListAcceleratorTypesRequest {
+  // Required. The parent resource name.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "tpu.googleapis.com/AcceleratorType"
+    }
+  ];
+
+  // The maximum number of items to return.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous List request, if any.
+  string page_token = 3;
+
+  // List filter.
+  string filter = 5;
+
+  // Sort results.
+  string order_by = 6;
+}
+
+// Response for [ListAcceleratorTypes][google.cloud.tpu.v1.Tpu.ListAcceleratorTypes].
+message ListAcceleratorTypesResponse {
+  // The listed nodes.
+  repeated AcceleratorType accelerator_types = 1;
+
+  // The next page token or empty if none.
+  string next_page_token = 2;
+
+  // Locations that could not be reached.
+  repeated string unreachable = 3;
+}
+
+// Note: the following OperationMetadata message was added manually.
+// This is caused by a conflict with some other message and will
+// be resolved separately. Please make sure to add this message back
+// if it's removed during public proto regeneration.
+
+// Metadata describing an [Operation][google.longrunning.Operation]
+message OperationMetadata {
+  // The time the operation was created.
+  google.protobuf.Timestamp create_time = 1;
+
+  // The time the operation finished running.
+  google.protobuf.Timestamp end_time = 2;
+
+  // Target of the operation - for example
+  // projects/project-1/connectivityTests/test-1
+  string target = 3;
+
+  // Name of the verb executed by the operation.
+  string verb = 4;
+
+  // Human-readable status of the operation, if any.
+  string status_detail = 5;
+
+  // Specifies if cancellation was requested for the operation.
+  bool cancel_requested = 6;
+
+  // API version.
+  string api_version = 7;
+}
+
+// A Symptom instance.
+message Symptom {
+  // SymptomType represents the different types of Symptoms that a TPU can be
+  // at.
+  enum SymptomType {
+    // Unspecified symptom.
+    SYMPTOM_TYPE_UNSPECIFIED = 0;
+
+    // TPU VM memory is low.
+    LOW_MEMORY = 1;
+
+    // TPU runtime is out of memory.
+    OUT_OF_MEMORY = 2;
+
+    // TPU runtime execution has timed out.
+    EXECUTE_TIMED_OUT = 3;
+
+    // TPU runtime fails to construct a mesh that recognizes each TPU device's
+    // neighbors.
+    MESH_BUILD_FAIL = 4;
+
+    // TPU HBM is out of memory.
+    HBM_OUT_OF_MEMORY = 5;
+
+    // Abusive behaviors have been identified on the current project.
+    PROJECT_ABUSE = 6;
+  }
+
+  // Timestamp when the Symptom is created.
+  google.protobuf.Timestamp create_time = 1;
+
+  // Type of the Symptom.
+  SymptomType symptom_type = 2;
+
+  // Detailed information of the current Symptom.
+  string details = 3;
+
+  // A string used to uniquely distinguish a worker within a TPU node.
+  string worker_id = 4;
+}
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/stub/tpustubsettings/getnode/SyncGetNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/stub/tpustubsettings/getnode/SyncGetNode.java
new file mode 100644
index 000000000000..b96ed478d45d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/stub/tpustubsettings/getnode/SyncGetNode.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.stub.samples;
+
+// [START tpu_v1_generated_tpustubsettings_getnode_sync]
+import com.google.cloud.tpu.v1.stub.TpuStubSettings;
+import java.time.Duration;
+
+public class SyncGetNode {
+
+  public static void main(String[] args) throws Exception {
+    syncGetNode();
+  }
+
+  public static void syncGetNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    TpuStubSettings.Builder tpuSettingsBuilder = TpuStubSettings.newBuilder();
+    tpuSettingsBuilder
+        .getNodeSettings()
+        .setRetrySettings(
+            tpuSettingsBuilder.getNodeSettings().getRetrySettings().toBuilder()
+                .setTotalTimeout(Duration.ofSeconds(30))
+                .build());
+    TpuStubSettings tpuSettings = tpuSettingsBuilder.build();
+  }
+}
+// [END tpu_v1_generated_tpustubsettings_getnode_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/create/SyncCreateSetCredentialsProvider.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/create/SyncCreateSetCredentialsProvider.java
new file mode 100644
index 000000000000..32d5b4f7ff7f
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/create/SyncCreateSetCredentialsProvider.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_create_setcredentialsprovider_sync]
+import com.google.api.gax.core.FixedCredentialsProvider;
+import com.google.cloud.tpu.v1.TpuClient;
+import com.google.cloud.tpu.v1.TpuSettings;
+import com.google.cloud.tpu.v1.myCredentials;
+
+public class SyncCreateSetCredentialsProvider {
+
+  public static void main(String[] args) throws Exception {
+    syncCreateSetCredentialsProvider();
+  }
+
+  public static void syncCreateSetCredentialsProvider() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    TpuSettings tpuSettings =
+        TpuSettings.newBuilder()
+            .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+            .build();
+    TpuClient tpuClient = TpuClient.create(tpuSettings);
+  }
+}
+// [END tpu_v1_generated_tpuclient_create_setcredentialsprovider_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/create/SyncCreateSetEndpoint.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/create/SyncCreateSetEndpoint.java
new file mode 100644
index 000000000000..f19eab4b9342
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/create/SyncCreateSetEndpoint.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_create_setendpoint_sync]
+import com.google.cloud.tpu.v1.TpuClient;
+import com.google.cloud.tpu.v1.TpuSettings;
+import com.google.cloud.tpu.v1.myEndpoint;
+
+public class SyncCreateSetEndpoint {
+
+  public static void main(String[] args) throws Exception {
+    syncCreateSetEndpoint();
+  }
+
+  public static void syncCreateSetEndpoint() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    TpuSettings tpuSettings = TpuSettings.newBuilder().setEndpoint(myEndpoint).build();
+    TpuClient tpuClient = TpuClient.create(tpuSettings);
+  }
+}
+// [END tpu_v1_generated_tpuclient_create_setendpoint_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/AsyncCreateNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/AsyncCreateNode.java
new file mode 100644
index 000000000000..135808e3a898
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/AsyncCreateNode.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_createnode_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v1.CreateNodeRequest;
+import com.google.cloud.tpu.v1.LocationName;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.TpuClient;
+import com.google.longrunning.Operation;
+
+public class AsyncCreateNode {
+
+  public static void main(String[] args) throws Exception {
+    asyncCreateNode();
+  }
+
+  public static void asyncCreateNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      CreateNodeRequest request =
+          CreateNodeRequest.newBuilder()
+              .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+              .setNodeId("nodeId-1040171331")
+              .setNode(Node.newBuilder().build())
+              .build();
+      ApiFuture<Operation> future = tpuClient.createNodeCallable().futureCall(request);
+      // Do something.
+      Operation response = future.get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_createnode_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/AsyncCreateNodeLRO.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/AsyncCreateNodeLRO.java
new file mode 100644
index 000000000000..c119a9a5d150
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/AsyncCreateNodeLRO.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_createnode_lro_async]
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.cloud.tpu.v1.CreateNodeRequest;
+import com.google.cloud.tpu.v1.LocationName;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.OperationMetadata;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class AsyncCreateNodeLRO {
+
+  public static void main(String[] args) throws Exception {
+    asyncCreateNodeLRO();
+  }
+
+  public static void asyncCreateNodeLRO() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      CreateNodeRequest request =
+          CreateNodeRequest.newBuilder()
+              .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+              .setNodeId("nodeId-1040171331")
+              .setNode(Node.newBuilder().build())
+              .build();
+      OperationFuture<Node, OperationMetadata> future =
+          tpuClient.createNodeOperationCallable().futureCall(request);
+      // Do something.
+      Node response = future.get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_createnode_lro_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/SyncCreateNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/SyncCreateNode.java
new file mode 100644
index 000000000000..79e58c793318
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/SyncCreateNode.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_createnode_sync]
+import com.google.cloud.tpu.v1.CreateNodeRequest;
+import com.google.cloud.tpu.v1.LocationName;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncCreateNode {
+
+  public static void main(String[] args) throws Exception {
+    syncCreateNode();
+  }
+
+  public static void syncCreateNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      CreateNodeRequest request =
+          CreateNodeRequest.newBuilder()
+              .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+              .setNodeId("nodeId-1040171331")
+              .setNode(Node.newBuilder().build())
+              .build();
+      Node response = tpuClient.createNodeAsync(request).get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_createnode_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/SyncCreateNodeLocationnameNodeString.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/SyncCreateNodeLocationnameNodeString.java
new file mode 100644
index 000000000000..b9d37cbef281
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/SyncCreateNodeLocationnameNodeString.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_createnode_locationnamenodestring_sync]
+import com.google.cloud.tpu.v1.LocationName;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncCreateNodeLocationnameNodeString {
+
+  public static void main(String[] args) throws Exception {
+    syncCreateNodeLocationnameNodeString();
+  }
+
+  public static void syncCreateNodeLocationnameNodeString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+      Node node = Node.newBuilder().build();
+      String nodeId = "nodeId-1040171331";
+      Node response = tpuClient.createNodeAsync(parent, node, nodeId).get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_createnode_locationnamenodestring_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/SyncCreateNodeStringNodeString.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/SyncCreateNodeStringNodeString.java
new file mode 100644
index 000000000000..2be8b6f66174
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/createnode/SyncCreateNodeStringNodeString.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_createnode_stringnodestring_sync]
+import com.google.cloud.tpu.v1.LocationName;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncCreateNodeStringNodeString {
+
+  public static void main(String[] args) throws Exception {
+    syncCreateNodeStringNodeString();
+  }
+
+  public static void syncCreateNodeStringNodeString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
+      Node node = Node.newBuilder().build();
+      String nodeId = "nodeId-1040171331";
+      Node response = tpuClient.createNodeAsync(parent, node, nodeId).get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_createnode_stringnodestring_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/AsyncDeleteNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/AsyncDeleteNode.java
new file mode 100644
index 000000000000..e208941b885a
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/AsyncDeleteNode.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_deletenode_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v1.DeleteNodeRequest;
+import com.google.cloud.tpu.v1.NodeName;
+import com.google.cloud.tpu.v1.TpuClient;
+import com.google.longrunning.Operation;
+
+public class AsyncDeleteNode {
+
+  public static void main(String[] args) throws Exception {
+    asyncDeleteNode();
+  }
+
+  public static void asyncDeleteNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      DeleteNodeRequest request =
+          DeleteNodeRequest.newBuilder()
+              .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .build();
+      ApiFuture<Operation> future = tpuClient.deleteNodeCallable().futureCall(request);
+      // Do something.
+      Operation response = future.get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_deletenode_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/AsyncDeleteNodeLRO.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/AsyncDeleteNodeLRO.java
new file mode 100644
index 000000000000..4a27ea1f06c4
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/AsyncDeleteNodeLRO.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_deletenode_lro_async]
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.cloud.tpu.v1.DeleteNodeRequest;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.NodeName;
+import com.google.cloud.tpu.v1.OperationMetadata;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class AsyncDeleteNodeLRO {
+
+  public static void main(String[] args) throws Exception {
+    asyncDeleteNodeLRO();
+  }
+
+  public static void asyncDeleteNodeLRO() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      DeleteNodeRequest request =
+          DeleteNodeRequest.newBuilder()
+              .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .build();
+      OperationFuture<Node, OperationMetadata> future =
+          tpuClient.deleteNodeOperationCallable().futureCall(request);
+      // Do something.
+      Node response = future.get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_deletenode_lro_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/SyncDeleteNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/SyncDeleteNode.java
new file mode 100644
index 000000000000..e4a1668a5ade
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/SyncDeleteNode.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_deletenode_sync]
+import com.google.cloud.tpu.v1.DeleteNodeRequest;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.NodeName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncDeleteNode {
+
+  public static void main(String[] args) throws Exception {
+    syncDeleteNode();
+  }
+
+  public static void syncDeleteNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      DeleteNodeRequest request =
+          DeleteNodeRequest.newBuilder()
+              .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .build();
+      Node response = tpuClient.deleteNodeAsync(request).get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_deletenode_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/SyncDeleteNodeNodename.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/SyncDeleteNodeNodename.java
new file mode 100644
index 000000000000..3648088d21f6
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/SyncDeleteNodeNodename.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_deletenode_nodename_sync]
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.NodeName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncDeleteNodeNodename {
+
+  public static void main(String[] args) throws Exception {
+    syncDeleteNodeNodename();
+  }
+
+  public static void syncDeleteNodeNodename() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+      Node response = tpuClient.deleteNodeAsync(name).get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_deletenode_nodename_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/SyncDeleteNodeString.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/SyncDeleteNodeString.java
new file mode 100644
index 000000000000..9f6d56cec7bd
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/deletenode/SyncDeleteNodeString.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_deletenode_string_sync]
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.NodeName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncDeleteNodeString {
+
+  public static void main(String[] args) throws Exception {
+    syncDeleteNodeString();
+  }
+
+  public static void syncDeleteNodeString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString();
+      Node response = tpuClient.deleteNodeAsync(name).get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_deletenode_string_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getacceleratortype/AsyncGetAcceleratorType.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getacceleratortype/AsyncGetAcceleratorType.java
new file mode 100644
index 000000000000..9bc876032e89
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getacceleratortype/AsyncGetAcceleratorType.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_getacceleratortype_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v1.AcceleratorType;
+import com.google.cloud.tpu.v1.AcceleratorTypeName;
+import com.google.cloud.tpu.v1.GetAcceleratorTypeRequest;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class AsyncGetAcceleratorType {
+
+  public static void main(String[] args) throws Exception {
+    asyncGetAcceleratorType();
+  }
+
+  public static void asyncGetAcceleratorType() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetAcceleratorTypeRequest request =
+          GetAcceleratorTypeRequest.newBuilder()
+              .setName(
+                  AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+                      .toString())
+              .build();
+      ApiFuture<AcceleratorType> future =
+          tpuClient.getAcceleratorTypeCallable().futureCall(request);
+      // Do something.
+      AcceleratorType response = future.get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_getacceleratortype_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getacceleratortype/SyncGetAcceleratorType.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getacceleratortype/SyncGetAcceleratorType.java
new file mode 100644
index 000000000000..315664040774
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getacceleratortype/SyncGetAcceleratorType.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_getacceleratortype_sync]
+import com.google.cloud.tpu.v1.AcceleratorType;
+import com.google.cloud.tpu.v1.AcceleratorTypeName;
+import com.google.cloud.tpu.v1.GetAcceleratorTypeRequest;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncGetAcceleratorType {
+
+  public static void main(String[] args) throws Exception {
+    syncGetAcceleratorType();
+  }
+
+  public static void syncGetAcceleratorType() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetAcceleratorTypeRequest request =
+          GetAcceleratorTypeRequest.newBuilder()
+              .setName(
+                  AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+                      .toString())
+              .build();
+      AcceleratorType response = tpuClient.getAcceleratorType(request);
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_getacceleratortype_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getacceleratortype/SyncGetAcceleratorTypeAcceleratortypename.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getacceleratortype/SyncGetAcceleratorTypeAcceleratortypename.java
new file mode 100644
index 000000000000..cfa3cb6b4b73
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getacceleratortype/SyncGetAcceleratorTypeAcceleratortypename.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_getacceleratortype_acceleratortypename_sync]
+import com.google.cloud.tpu.v1.AcceleratorType;
+import com.google.cloud.tpu.v1.AcceleratorTypeName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncGetAcceleratorTypeAcceleratortypename {
+
+  public static void main(String[] args) throws Exception {
+    syncGetAcceleratorTypeAcceleratortypename();
+  }
+
+  public static void syncGetAcceleratorTypeAcceleratortypename() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      AcceleratorTypeName name =
+          AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+      AcceleratorType response = tpuClient.getAcceleratorType(name);
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_getacceleratortype_acceleratortypename_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getacceleratortype/SyncGetAcceleratorTypeString.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getacceleratortype/SyncGetAcceleratorTypeString.java
new file mode 100644
index 000000000000..dadf40e27cb1
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getacceleratortype/SyncGetAcceleratorTypeString.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_getacceleratortype_string_sync]
+import com.google.cloud.tpu.v1.AcceleratorType;
+import com.google.cloud.tpu.v1.AcceleratorTypeName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncGetAcceleratorTypeString {
+
+  public static void main(String[] args) throws Exception {
+    syncGetAcceleratorTypeString();
+  }
+
+  public static void syncGetAcceleratorTypeString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String name =
+          AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]").toString();
+      AcceleratorType response = tpuClient.getAcceleratorType(name);
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_getacceleratortype_string_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getnode/AsyncGetNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getnode/AsyncGetNode.java
new file mode 100644
index 000000000000..5e0a593c75a6
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getnode/AsyncGetNode.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_getnode_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v1.GetNodeRequest;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.NodeName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class AsyncGetNode {
+
+  public static void main(String[] args) throws Exception {
+    asyncGetNode();
+  }
+
+  public static void asyncGetNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetNodeRequest request =
+          GetNodeRequest.newBuilder()
+              .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .build();
+      ApiFuture<Node> future = tpuClient.getNodeCallable().futureCall(request);
+      // Do something.
+      Node response = future.get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_getnode_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getnode/SyncGetNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getnode/SyncGetNode.java
new file mode 100644
index 000000000000..8a20b0a299e8
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getnode/SyncGetNode.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_getnode_sync]
+import com.google.cloud.tpu.v1.GetNodeRequest;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.NodeName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncGetNode {
+
+  public static void main(String[] args) throws Exception {
+    syncGetNode();
+  }
+
+  public static void syncGetNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetNodeRequest request =
+          GetNodeRequest.newBuilder()
+              .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .build();
+      Node response = tpuClient.getNode(request);
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_getnode_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getnode/SyncGetNodeNodename.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getnode/SyncGetNodeNodename.java
new file mode 100644
index 000000000000..669352936062
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getnode/SyncGetNodeNodename.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_getnode_nodename_sync]
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.NodeName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncGetNodeNodename {
+
+  public static void main(String[] args) throws Exception {
+    syncGetNodeNodename();
+  }
+
+  public static void syncGetNodeNodename() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+      Node response = tpuClient.getNode(name);
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_getnode_nodename_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getnode/SyncGetNodeString.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getnode/SyncGetNodeString.java
new file mode 100644
index 000000000000..1527e6e0936a
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/getnode/SyncGetNodeString.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_getnode_string_sync]
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.NodeName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncGetNodeString {
+
+  public static void main(String[] args) throws Exception {
+    syncGetNodeString();
+  }
+
+  public static void syncGetNodeString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString();
+      Node response = tpuClient.getNode(name);
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_getnode_string_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/gettensorflowversion/AsyncGetTensorFlowVersion.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/gettensorflowversion/AsyncGetTensorFlowVersion.java
new file mode 100644
index 000000000000..bbf69d561c3d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/gettensorflowversion/AsyncGetTensorFlowVersion.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_gettensorflowversion_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v1.GetTensorFlowVersionRequest;
+import com.google.cloud.tpu.v1.TensorFlowVersion;
+import com.google.cloud.tpu.v1.TensorFlowVersionName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class AsyncGetTensorFlowVersion {
+
+  public static void main(String[] args) throws Exception {
+    asyncGetTensorFlowVersion();
+  }
+
+  public static void asyncGetTensorFlowVersion() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetTensorFlowVersionRequest request =
+          GetTensorFlowVersionRequest.newBuilder()
+              .setName(
+                  TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]")
+                      .toString())
+              .build();
+      ApiFuture<TensorFlowVersion> future =
+          tpuClient.getTensorFlowVersionCallable().futureCall(request);
+      // Do something.
+      TensorFlowVersion response = future.get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_gettensorflowversion_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/gettensorflowversion/SyncGetTensorFlowVersion.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/gettensorflowversion/SyncGetTensorFlowVersion.java
new file mode 100644
index 000000000000..85247f48a1b4
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/gettensorflowversion/SyncGetTensorFlowVersion.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_gettensorflowversion_sync]
+import com.google.cloud.tpu.v1.GetTensorFlowVersionRequest;
+import com.google.cloud.tpu.v1.TensorFlowVersion;
+import com.google.cloud.tpu.v1.TensorFlowVersionName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncGetTensorFlowVersion {
+
+  public static void main(String[] args) throws Exception {
+    syncGetTensorFlowVersion();
+  }
+
+  public static void syncGetTensorFlowVersion() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetTensorFlowVersionRequest request =
+          GetTensorFlowVersionRequest.newBuilder()
+              .setName(
+                  TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]")
+                      .toString())
+              .build();
+      TensorFlowVersion response = tpuClient.getTensorFlowVersion(request);
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_gettensorflowversion_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/gettensorflowversion/SyncGetTensorFlowVersionString.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/gettensorflowversion/SyncGetTensorFlowVersionString.java
new file mode 100644
index 000000000000..2c70fab7b3ab
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/gettensorflowversion/SyncGetTensorFlowVersionString.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_gettensorflowversion_string_sync]
+import com.google.cloud.tpu.v1.TensorFlowVersion;
+import com.google.cloud.tpu.v1.TensorFlowVersionName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncGetTensorFlowVersionString {
+
+  public static void main(String[] args) throws Exception {
+    syncGetTensorFlowVersionString();
+  }
+
+  public static void syncGetTensorFlowVersionString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String name =
+          TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]").toString();
+      TensorFlowVersion response = tpuClient.getTensorFlowVersion(name);
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_gettensorflowversion_string_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/gettensorflowversion/SyncGetTensorFlowVersionTensorflowversionname.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/gettensorflowversion/SyncGetTensorFlowVersionTensorflowversionname.java
new file mode 100644
index 000000000000..8e1d6cfb6eab
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/gettensorflowversion/SyncGetTensorFlowVersionTensorflowversionname.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_gettensorflowversion_tensorflowversionname_sync]
+import com.google.cloud.tpu.v1.TensorFlowVersion;
+import com.google.cloud.tpu.v1.TensorFlowVersionName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncGetTensorFlowVersionTensorflowversionname {
+
+  public static void main(String[] args) throws Exception {
+    syncGetTensorFlowVersionTensorflowversionname();
+  }
+
+  public static void syncGetTensorFlowVersionTensorflowversionname() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      TensorFlowVersionName name =
+          TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]");
+      TensorFlowVersion response = tpuClient.getTensorFlowVersion(name);
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_gettensorflowversion_tensorflowversionname_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/AsyncListAcceleratorTypes.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/AsyncListAcceleratorTypes.java
new file mode 100644
index 000000000000..628271b920c7
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/AsyncListAcceleratorTypes.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listacceleratortypes_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v1.AcceleratorType;
+import com.google.cloud.tpu.v1.AcceleratorTypeName;
+import com.google.cloud.tpu.v1.ListAcceleratorTypesRequest;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class AsyncListAcceleratorTypes {
+
+  public static void main(String[] args) throws Exception {
+    asyncListAcceleratorTypes();
+  }
+
+  public static void asyncListAcceleratorTypes() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListAcceleratorTypesRequest request =
+          ListAcceleratorTypesRequest.newBuilder()
+              .setParent(
+                  AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+                      .toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .setFilter("filter-1274492040")
+              .setOrderBy("orderBy-1207110587")
+              .build();
+      ApiFuture<AcceleratorType> future =
+          tpuClient.listAcceleratorTypesPagedCallable().futureCall(request);
+      // Do something.
+      for (AcceleratorType element : future.get().iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listacceleratortypes_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/AsyncListAcceleratorTypesPaged.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/AsyncListAcceleratorTypesPaged.java
new file mode 100644
index 000000000000..7adfc638a723
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/AsyncListAcceleratorTypesPaged.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listacceleratortypes_paged_async]
+import com.google.cloud.tpu.v1.AcceleratorType;
+import com.google.cloud.tpu.v1.AcceleratorTypeName;
+import com.google.cloud.tpu.v1.ListAcceleratorTypesRequest;
+import com.google.cloud.tpu.v1.ListAcceleratorTypesResponse;
+import com.google.cloud.tpu.v1.TpuClient;
+import com.google.common.base.Strings;
+
+public class AsyncListAcceleratorTypesPaged {
+
+  public static void main(String[] args) throws Exception {
+    asyncListAcceleratorTypesPaged();
+  }
+
+  public static void asyncListAcceleratorTypesPaged() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListAcceleratorTypesRequest request =
+          ListAcceleratorTypesRequest.newBuilder()
+              .setParent(
+                  AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+                      .toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .setFilter("filter-1274492040")
+              .setOrderBy("orderBy-1207110587")
+              .build();
+      while (true) {
+        ListAcceleratorTypesResponse response =
+            tpuClient.listAcceleratorTypesCallable().call(request);
+        for (AcceleratorType element : response.getAcceleratorTypesList()) {
+          // doThingsWith(element);
+        }
+        String nextPageToken = response.getNextPageToken();
+        if (!Strings.isNullOrEmpty(nextPageToken)) {
+          request = request.toBuilder().setPageToken(nextPageToken).build();
+        } else {
+          break;
+        }
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listacceleratortypes_paged_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/SyncListAcceleratorTypes.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/SyncListAcceleratorTypes.java
new file mode 100644
index 000000000000..fc7a5b5d71b6
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/SyncListAcceleratorTypes.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listacceleratortypes_sync]
+import com.google.cloud.tpu.v1.AcceleratorType;
+import com.google.cloud.tpu.v1.AcceleratorTypeName;
+import com.google.cloud.tpu.v1.ListAcceleratorTypesRequest;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncListAcceleratorTypes {
+
+  public static void main(String[] args) throws Exception {
+    syncListAcceleratorTypes();
+  }
+
+  public static void syncListAcceleratorTypes() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListAcceleratorTypesRequest request =
+          ListAcceleratorTypesRequest.newBuilder()
+              .setParent(
+                  AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+                      .toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .setFilter("filter-1274492040")
+              .setOrderBy("orderBy-1207110587")
+              .build();
+      for (AcceleratorType element : tpuClient.listAcceleratorTypes(request).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listacceleratortypes_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/SyncListAcceleratorTypesAcceleratortypename.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/SyncListAcceleratorTypesAcceleratortypename.java
new file mode 100644
index 000000000000..401ac381de21
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/SyncListAcceleratorTypesAcceleratortypename.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listacceleratortypes_acceleratortypename_sync]
+import com.google.cloud.tpu.v1.AcceleratorType;
+import com.google.cloud.tpu.v1.AcceleratorTypeName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncListAcceleratorTypesAcceleratortypename {
+
+  public static void main(String[] args) throws Exception {
+    syncListAcceleratorTypesAcceleratortypename();
+  }
+
+  public static void syncListAcceleratorTypesAcceleratortypename() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      AcceleratorTypeName parent =
+          AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+      for (AcceleratorType element : tpuClient.listAcceleratorTypes(parent).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listacceleratortypes_acceleratortypename_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/SyncListAcceleratorTypesString.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/SyncListAcceleratorTypesString.java
new file mode 100644
index 000000000000..2a343757516c
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listacceleratortypes/SyncListAcceleratorTypesString.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listacceleratortypes_string_sync]
+import com.google.cloud.tpu.v1.AcceleratorType;
+import com.google.cloud.tpu.v1.AcceleratorTypeName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncListAcceleratorTypesString {
+
+  public static void main(String[] args) throws Exception {
+    syncListAcceleratorTypesString();
+  }
+
+  public static void syncListAcceleratorTypesString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String parent =
+          AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]").toString();
+      for (AcceleratorType element : tpuClient.listAcceleratorTypes(parent).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listacceleratortypes_string_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/AsyncListNodes.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/AsyncListNodes.java
new file mode 100644
index 000000000000..66e789d57314
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/AsyncListNodes.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listnodes_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v1.ListNodesRequest;
+import com.google.cloud.tpu.v1.LocationName;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class AsyncListNodes {
+
+  public static void main(String[] args) throws Exception {
+    asyncListNodes();
+  }
+
+  public static void asyncListNodes() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListNodesRequest request =
+          ListNodesRequest.newBuilder()
+              .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .build();
+      ApiFuture<Node> future = tpuClient.listNodesPagedCallable().futureCall(request);
+      // Do something.
+      for (Node element : future.get().iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listnodes_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/AsyncListNodesPaged.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/AsyncListNodesPaged.java
new file mode 100644
index 000000000000..a979a45575ca
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/AsyncListNodesPaged.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listnodes_paged_async]
+import com.google.cloud.tpu.v1.ListNodesRequest;
+import com.google.cloud.tpu.v1.ListNodesResponse;
+import com.google.cloud.tpu.v1.LocationName;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.TpuClient;
+import com.google.common.base.Strings;
+
+public class AsyncListNodesPaged {
+
+  public static void main(String[] args) throws Exception {
+    asyncListNodesPaged();
+  }
+
+  public static void asyncListNodesPaged() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListNodesRequest request =
+          ListNodesRequest.newBuilder()
+              .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .build();
+      while (true) {
+        ListNodesResponse response = tpuClient.listNodesCallable().call(request);
+        for (Node element : response.getNodesList()) {
+          // doThingsWith(element);
+        }
+        String nextPageToken = response.getNextPageToken();
+        if (!Strings.isNullOrEmpty(nextPageToken)) {
+          request = request.toBuilder().setPageToken(nextPageToken).build();
+        } else {
+          break;
+        }
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listnodes_paged_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/SyncListNodes.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/SyncListNodes.java
new file mode 100644
index 000000000000..cfd2ef7be750
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/SyncListNodes.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listnodes_sync]
+import com.google.cloud.tpu.v1.ListNodesRequest;
+import com.google.cloud.tpu.v1.LocationName;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncListNodes {
+
+  public static void main(String[] args) throws Exception {
+    syncListNodes();
+  }
+
+  public static void syncListNodes() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListNodesRequest request =
+          ListNodesRequest.newBuilder()
+              .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .build();
+      for (Node element : tpuClient.listNodes(request).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listnodes_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/SyncListNodesLocationname.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/SyncListNodesLocationname.java
new file mode 100644
index 000000000000..6cc8ed87b40c
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/SyncListNodesLocationname.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listnodes_locationname_sync]
+import com.google.cloud.tpu.v1.LocationName;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncListNodesLocationname {
+
+  public static void main(String[] args) throws Exception {
+    syncListNodesLocationname();
+  }
+
+  public static void syncListNodesLocationname() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+      for (Node element : tpuClient.listNodes(parent).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listnodes_locationname_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/SyncListNodesString.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/SyncListNodesString.java
new file mode 100644
index 000000000000..60493c99f2f0
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listnodes/SyncListNodesString.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listnodes_string_sync]
+import com.google.cloud.tpu.v1.LocationName;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncListNodesString {
+
+  public static void main(String[] args) throws Exception {
+    syncListNodesString();
+  }
+
+  public static void syncListNodesString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
+      for (Node element : tpuClient.listNodes(parent).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listnodes_string_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/AsyncListTensorFlowVersions.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/AsyncListTensorFlowVersions.java
new file mode 100644
index 000000000000..fced33adb6b4
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/AsyncListTensorFlowVersions.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listtensorflowversions_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest;
+import com.google.cloud.tpu.v1.TensorFlowVersion;
+import com.google.cloud.tpu.v1.TensorFlowVersionName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class AsyncListTensorFlowVersions {
+
+  public static void main(String[] args) throws Exception {
+    asyncListTensorFlowVersions();
+  }
+
+  public static void asyncListTensorFlowVersions() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListTensorFlowVersionsRequest request =
+          ListTensorFlowVersionsRequest.newBuilder()
+              .setParent(
+                  TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]")
+                      .toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .setFilter("filter-1274492040")
+              .setOrderBy("orderBy-1207110587")
+              .build();
+      ApiFuture<TensorFlowVersion> future =
+          tpuClient.listTensorFlowVersionsPagedCallable().futureCall(request);
+      // Do something.
+      for (TensorFlowVersion element : future.get().iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listtensorflowversions_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/AsyncListTensorFlowVersionsPaged.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/AsyncListTensorFlowVersionsPaged.java
new file mode 100644
index 000000000000..a052350dedfd
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/AsyncListTensorFlowVersionsPaged.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listtensorflowversions_paged_async]
+import com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest;
+import com.google.cloud.tpu.v1.ListTensorFlowVersionsResponse;
+import com.google.cloud.tpu.v1.TensorFlowVersion;
+import com.google.cloud.tpu.v1.TensorFlowVersionName;
+import com.google.cloud.tpu.v1.TpuClient;
+import com.google.common.base.Strings;
+
+public class AsyncListTensorFlowVersionsPaged {
+
+  public static void main(String[] args) throws Exception {
+    asyncListTensorFlowVersionsPaged();
+  }
+
+  public static void asyncListTensorFlowVersionsPaged() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListTensorFlowVersionsRequest request =
+          ListTensorFlowVersionsRequest.newBuilder()
+              .setParent(
+                  TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]")
+                      .toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .setFilter("filter-1274492040")
+              .setOrderBy("orderBy-1207110587")
+              .build();
+      while (true) {
+        ListTensorFlowVersionsResponse response =
+            tpuClient.listTensorFlowVersionsCallable().call(request);
+        for (TensorFlowVersion element : response.getTensorflowVersionsList()) {
+          // doThingsWith(element);
+        }
+        String nextPageToken = response.getNextPageToken();
+        if (!Strings.isNullOrEmpty(nextPageToken)) {
+          request = request.toBuilder().setPageToken(nextPageToken).build();
+        } else {
+          break;
+        }
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listtensorflowversions_paged_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/SyncListTensorFlowVersions.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/SyncListTensorFlowVersions.java
new file mode 100644
index 000000000000..86fc5c6cd069
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/SyncListTensorFlowVersions.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listtensorflowversions_sync]
+import com.google.cloud.tpu.v1.ListTensorFlowVersionsRequest;
+import com.google.cloud.tpu.v1.TensorFlowVersion;
+import com.google.cloud.tpu.v1.TensorFlowVersionName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncListTensorFlowVersions {
+
+  public static void main(String[] args) throws Exception {
+    syncListTensorFlowVersions();
+  }
+
+  public static void syncListTensorFlowVersions() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListTensorFlowVersionsRequest request =
+          ListTensorFlowVersionsRequest.newBuilder()
+              .setParent(
+                  TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]")
+                      .toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .setFilter("filter-1274492040")
+              .setOrderBy("orderBy-1207110587")
+              .build();
+      for (TensorFlowVersion element : tpuClient.listTensorFlowVersions(request).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listtensorflowversions_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/SyncListTensorFlowVersionsString.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/SyncListTensorFlowVersionsString.java
new file mode 100644
index 000000000000..74551315ed19
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/SyncListTensorFlowVersionsString.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listtensorflowversions_string_sync]
+import com.google.cloud.tpu.v1.TensorFlowVersion;
+import com.google.cloud.tpu.v1.TensorFlowVersionName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncListTensorFlowVersionsString {
+
+  public static void main(String[] args) throws Exception {
+    syncListTensorFlowVersionsString();
+  }
+
+  public static void syncListTensorFlowVersionsString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String parent =
+          TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]").toString();
+      for (TensorFlowVersion element : tpuClient.listTensorFlowVersions(parent).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listtensorflowversions_string_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/SyncListTensorFlowVersionsTensorflowversionname.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/SyncListTensorFlowVersionsTensorflowversionname.java
new file mode 100644
index 000000000000..d5318914ccb2
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/listtensorflowversions/SyncListTensorFlowVersionsTensorflowversionname.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_listtensorflowversions_tensorflowversionname_sync]
+import com.google.cloud.tpu.v1.TensorFlowVersion;
+import com.google.cloud.tpu.v1.TensorFlowVersionName;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncListTensorFlowVersionsTensorflowversionname {
+
+  public static void main(String[] args) throws Exception {
+    syncListTensorFlowVersionsTensorflowversionname();
+  }
+
+  public static void syncListTensorFlowVersionsTensorflowversionname() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      TensorFlowVersionName parent =
+          TensorFlowVersionName.of("[PROJECT]", "[LOCATION]", "[TENSOR_FLOW_VERSION]");
+      for (TensorFlowVersion element : tpuClient.listTensorFlowVersions(parent).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_listtensorflowversions_tensorflowversionname_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/reimagenode/AsyncReimageNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/reimagenode/AsyncReimageNode.java
new file mode 100644
index 000000000000..f36cbe5f1c35
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/reimagenode/AsyncReimageNode.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_reimagenode_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v1.ReimageNodeRequest;
+import com.google.cloud.tpu.v1.TpuClient;
+import com.google.longrunning.Operation;
+
+public class AsyncReimageNode {
+
+  public static void main(String[] args) throws Exception {
+    asyncReimageNode();
+  }
+
+  public static void asyncReimageNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ReimageNodeRequest request =
+          ReimageNodeRequest.newBuilder()
+              .setName("name3373707")
+              .setTensorflowVersion("tensorflowVersion-470125103")
+              .build();
+      ApiFuture<Operation> future = tpuClient.reimageNodeCallable().futureCall(request);
+      // Do something.
+      Operation response = future.get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_reimagenode_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/reimagenode/AsyncReimageNodeLRO.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/reimagenode/AsyncReimageNodeLRO.java
new file mode 100644
index 000000000000..55c81051b2f0
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/reimagenode/AsyncReimageNodeLRO.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_reimagenode_lro_async]
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.OperationMetadata;
+import com.google.cloud.tpu.v1.ReimageNodeRequest;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class AsyncReimageNodeLRO {
+
+  public static void main(String[] args) throws Exception {
+    asyncReimageNodeLRO();
+  }
+
+  public static void asyncReimageNodeLRO() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ReimageNodeRequest request =
+          ReimageNodeRequest.newBuilder()
+              .setName("name3373707")
+              .setTensorflowVersion("tensorflowVersion-470125103")
+              .build();
+      OperationFuture<Node, OperationMetadata> future =
+          tpuClient.reimageNodeOperationCallable().futureCall(request);
+      // Do something.
+      Node response = future.get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_reimagenode_lro_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/reimagenode/SyncReimageNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/reimagenode/SyncReimageNode.java
new file mode 100644
index 000000000000..8e3793b5bbf7
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/reimagenode/SyncReimageNode.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_reimagenode_sync]
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.ReimageNodeRequest;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncReimageNode {
+
+  public static void main(String[] args) throws Exception {
+    syncReimageNode();
+  }
+
+  public static void syncReimageNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ReimageNodeRequest request =
+          ReimageNodeRequest.newBuilder()
+              .setName("name3373707")
+              .setTensorflowVersion("tensorflowVersion-470125103")
+              .build();
+      Node response = tpuClient.reimageNodeAsync(request).get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_reimagenode_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/startnode/AsyncStartNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/startnode/AsyncStartNode.java
new file mode 100644
index 000000000000..8ce3dcfeb103
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/startnode/AsyncStartNode.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_startnode_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v1.StartNodeRequest;
+import com.google.cloud.tpu.v1.TpuClient;
+import com.google.longrunning.Operation;
+
+public class AsyncStartNode {
+
+  public static void main(String[] args) throws Exception {
+    asyncStartNode();
+  }
+
+  public static void asyncStartNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+      ApiFuture<Operation> future = tpuClient.startNodeCallable().futureCall(request);
+      // Do something.
+      Operation response = future.get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_startnode_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/startnode/AsyncStartNodeLRO.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/startnode/AsyncStartNodeLRO.java
new file mode 100644
index 000000000000..fc2bb43e4728
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/startnode/AsyncStartNodeLRO.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_startnode_lro_async]
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.OperationMetadata;
+import com.google.cloud.tpu.v1.StartNodeRequest;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class AsyncStartNodeLRO {
+
+  public static void main(String[] args) throws Exception {
+    asyncStartNodeLRO();
+  }
+
+  public static void asyncStartNodeLRO() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+      OperationFuture<Node, OperationMetadata> future =
+          tpuClient.startNodeOperationCallable().futureCall(request);
+      // Do something.
+      Node response = future.get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_startnode_lro_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/startnode/SyncStartNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/startnode/SyncStartNode.java
new file mode 100644
index 000000000000..32e716469c42
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/startnode/SyncStartNode.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_startnode_sync]
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.StartNodeRequest;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncStartNode {
+
+  public static void main(String[] args) throws Exception {
+    syncStartNode();
+  }
+
+  public static void syncStartNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+      Node response = tpuClient.startNodeAsync(request).get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_startnode_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/stopnode/AsyncStopNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/stopnode/AsyncStopNode.java
new file mode 100644
index 000000000000..ce4bd5ffb949
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/stopnode/AsyncStopNode.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_stopnode_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v1.StopNodeRequest;
+import com.google.cloud.tpu.v1.TpuClient;
+import com.google.longrunning.Operation;
+
+public class AsyncStopNode {
+
+  public static void main(String[] args) throws Exception {
+    asyncStopNode();
+  }
+
+  public static void asyncStopNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+      ApiFuture<Operation> future = tpuClient.stopNodeCallable().futureCall(request);
+      // Do something.
+      Operation response = future.get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_stopnode_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/stopnode/AsyncStopNodeLRO.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/stopnode/AsyncStopNodeLRO.java
new file mode 100644
index 000000000000..db1ab1cef974
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/stopnode/AsyncStopNodeLRO.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_stopnode_lro_async]
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.OperationMetadata;
+import com.google.cloud.tpu.v1.StopNodeRequest;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class AsyncStopNodeLRO {
+
+  public static void main(String[] args) throws Exception {
+    asyncStopNodeLRO();
+  }
+
+  public static void asyncStopNodeLRO() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+      OperationFuture<Node, OperationMetadata> future =
+          tpuClient.stopNodeOperationCallable().futureCall(request);
+      // Do something.
+      Node response = future.get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_stopnode_lro_async]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/stopnode/SyncStopNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/stopnode/SyncStopNode.java
new file mode 100644
index 000000000000..ade9a76a8607
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpuclient/stopnode/SyncStopNode.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpuclient_stopnode_sync]
+import com.google.cloud.tpu.v1.Node;
+import com.google.cloud.tpu.v1.StopNodeRequest;
+import com.google.cloud.tpu.v1.TpuClient;
+
+public class SyncStopNode {
+
+  public static void main(String[] args) throws Exception {
+    syncStopNode();
+  }
+
+  public static void syncStopNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+      Node response = tpuClient.stopNodeAsync(request).get();
+    }
+  }
+}
+// [END tpu_v1_generated_tpuclient_stopnode_sync]
diff --git a/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpusettings/getnode/SyncGetNode.java b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpusettings/getnode/SyncGetNode.java
new file mode 100644
index 000000000000..043c66b8352b
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v1/samples/snippets/generated/com/google/cloud/tpu/v1/tpusettings/getnode/SyncGetNode.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v1.samples;
+
+// [START tpu_v1_generated_tpusettings_getnode_sync]
+import com.google.cloud.tpu.v1.TpuSettings;
+import java.time.Duration;
+
+public class SyncGetNode {
+
+  public static void main(String[] args) throws Exception {
+    syncGetNode();
+  }
+
+  public static void syncGetNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    TpuSettings.Builder tpuSettingsBuilder = TpuSettings.newBuilder();
+    tpuSettingsBuilder
+        .getNodeSettings()
+        .setRetrySettings(
+            tpuSettingsBuilder.getNodeSettings().getRetrySettings().toBuilder()
+                .setTotalTimeout(Duration.ofSeconds(30))
+                .build());
+    TpuSettings tpuSettings = tpuSettingsBuilder.build();
+  }
+}
+// [END tpu_v1_generated_tpusettings_getnode_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/TpuClient.java b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/TpuClient.java
new file mode 100644
index 000000000000..7a1fbd831549
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/TpuClient.java
@@ -0,0 +1,1977 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1;
+
+import com.google.api.core.ApiFuture;
+import com.google.api.core.ApiFutures;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.api.gax.paging.AbstractFixedSizeCollection;
+import com.google.api.gax.paging.AbstractPage;
+import com.google.api.gax.paging.AbstractPagedListResponse;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.tpu.v2alpha1.stub.TpuStub;
+import com.google.cloud.tpu.v2alpha1.stub.TpuStubSettings;
+import com.google.common.util.concurrent.MoreExecutors;
+import com.google.longrunning.Operation;
+import com.google.longrunning.OperationsClient;
+import com.google.protobuf.FieldMask;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Service Description: Manages TPU nodes and other resources
+ *
+ * <p>TPU API v2alpha1
+ *
+ * <p>This class provides the ability to make remote calls to the backing service through method
+ * calls that map to API methods. Sample code to get started:
+ *
+ * <pre>{@code
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+ * try (TpuClient tpuClient = TpuClient.create()) {
+ *   NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+ *   Node response = tpuClient.getNode(name);
+ * }
+ * }</pre>
+ *
+ * <p>Note: close() needs to be called on the TpuClient object to clean up resources such as
+ * threads. In the example above, try-with-resources is used, which automatically calls close().
+ *
+ * <p>The surface of this class includes several types of Java methods for each of the API's
+ * methods:
+ *
+ * <ol>
+ *   <li>A "flattened" method. With this type of method, the fields of the request type have been
+ *       converted into function parameters. It may be the case that not all fields are available as
+ *       parameters, and not every API method will have a flattened method entry point.
+ *   <li>A "request object" method. This type of method only takes one parameter, a request object,
+ *       which must be constructed before the call. Not every API method will have a request object
+ *       method.
+ *   <li>A "callable" method. This type of method takes no parameters and returns an immutable API
+ *       callable object, which can be used to initiate calls to the service.
+ * </ol>
+ *
+ * <p>See the individual methods for example code.
+ *
+ * <p>Many parameters require resource names to be formatted in a particular way. To assist with
+ * these names, this class includes a format method for each type of name, and additionally a parse
+ * method to extract the individual identifiers contained within names that are returned.
+ *
+ * <p>This class can be customized by passing in a custom instance of TpuSettings to create(). For
+ * example:
+ *
+ * <p>To customize credentials:
+ *
+ * <pre>{@code
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+ * TpuSettings tpuSettings =
+ *     TpuSettings.newBuilder()
+ *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+ *         .build();
+ * TpuClient tpuClient = TpuClient.create(tpuSettings);
+ * }</pre>
+ *
+ * <p>To customize the endpoint:
+ *
+ * <pre>{@code
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+ * TpuSettings tpuSettings = TpuSettings.newBuilder().setEndpoint(myEndpoint).build();
+ * TpuClient tpuClient = TpuClient.create(tpuSettings);
+ * }</pre>
+ *
+ * <p>Please refer to the GitHub repository's samples for more quickstart code snippets.
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class TpuClient implements BackgroundResource {
+  private final TpuSettings settings;
+  private final TpuStub stub;
+  private final OperationsClient operationsClient;
+
+  /** Constructs an instance of TpuClient with default settings. */
+  public static final TpuClient create() throws IOException {
+    return create(TpuSettings.newBuilder().build());
+  }
+
+  /**
+   * Constructs an instance of TpuClient, using the given settings. The channels are created based
+   * on the settings passed in, or defaults for any settings that are not set.
+   */
+  public static final TpuClient create(TpuSettings settings) throws IOException {
+    return new TpuClient(settings);
+  }
+
+  /**
+   * Constructs an instance of TpuClient, using the given stub for making calls. This is for
+   * advanced usage - prefer using create(TpuSettings).
+   */
+  public static final TpuClient create(TpuStub stub) {
+    return new TpuClient(stub);
+  }
+
+  /**
+   * Constructs an instance of TpuClient, using the given settings. This is protected so that it is
+   * easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected TpuClient(TpuSettings settings) throws IOException {
+    this.settings = settings;
+    this.stub = ((TpuStubSettings) settings.getStubSettings()).createStub();
+    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+  }
+
+  protected TpuClient(TpuStub stub) {
+    this.settings = null;
+    this.stub = stub;
+    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+  }
+
+  public final TpuSettings getSettings() {
+    return settings;
+  }
+
+  public TpuStub getStub() {
+    return stub;
+  }
+
+  /**
+   * Returns the OperationsClient that can be used to query the status of a long-running operation
+   * returned by another API method call.
+   */
+  public final OperationsClient getOperationsClient() {
+    return operationsClient;
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists nodes.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   NodeName parent = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+   *   for (Node element : tpuClient.listNodes(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListNodesPagedResponse listNodes(NodeName parent) {
+    ListNodesRequest request =
+        ListNodesRequest.newBuilder().setParent(parent == null ? null : parent.toString()).build();
+    return listNodes(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists nodes.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String parent = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString();
+   *   for (Node element : tpuClient.listNodes(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListNodesPagedResponse listNodes(String parent) {
+    ListNodesRequest request = ListNodesRequest.newBuilder().setParent(parent).build();
+    return listNodes(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists nodes.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListNodesRequest request =
+   *       ListNodesRequest.newBuilder()
+   *           .setParent(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   for (Node element : tpuClient.listNodes(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListNodesPagedResponse listNodes(ListNodesRequest request) {
+    return listNodesPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists nodes.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListNodesRequest request =
+   *       ListNodesRequest.newBuilder()
+   *           .setParent(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   ApiFuture<Node> future = tpuClient.listNodesPagedCallable().futureCall(request);
+   *   // Do something.
+   *   for (Node element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<ListNodesRequest, ListNodesPagedResponse> listNodesPagedCallable() {
+    return stub.listNodesPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists nodes.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListNodesRequest request =
+   *       ListNodesRequest.newBuilder()
+   *           .setParent(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   while (true) {
+   *     ListNodesResponse response = tpuClient.listNodesCallable().call(request);
+   *     for (Node element : response.getNodesList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<ListNodesRequest, ListNodesResponse> listNodesCallable() {
+    return stub.listNodesCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets the details of a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+   *   Node response = tpuClient.getNode(name);
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Node getNode(NodeName name) {
+    GetNodeRequest request =
+        GetNodeRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return getNode(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets the details of a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString();
+   *   Node response = tpuClient.getNode(name);
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Node getNode(String name) {
+    GetNodeRequest request = GetNodeRequest.newBuilder().setName(name).build();
+    return getNode(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets the details of a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetNodeRequest request =
+   *       GetNodeRequest.newBuilder()
+   *           .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .build();
+   *   Node response = tpuClient.getNode(request);
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final Node getNode(GetNodeRequest request) {
+    return getNodeCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets the details of a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetNodeRequest request =
+   *       GetNodeRequest.newBuilder()
+   *           .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .build();
+   *   ApiFuture<Node> future = tpuClient.getNodeCallable().futureCall(request);
+   *   // Do something.
+   *   Node response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<GetNodeRequest, Node> getNodeCallable() {
+    return stub.getNodeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+   *   Node node = Node.newBuilder().build();
+   *   String nodeId = "nodeId-1040171331";
+   *   Node response = tpuClient.createNodeAsync(parent, node, nodeId).get();
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @param node Required. The node.
+   * @param nodeId The unqualified resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> createNodeAsync(
+      LocationName parent, Node node, String nodeId) {
+    CreateNodeRequest request =
+        CreateNodeRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .setNode(node)
+            .setNodeId(nodeId)
+            .build();
+    return createNodeAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
+   *   Node node = Node.newBuilder().build();
+   *   String nodeId = "nodeId-1040171331";
+   *   Node response = tpuClient.createNodeAsync(parent, node, nodeId).get();
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @param node Required. The node.
+   * @param nodeId The unqualified resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> createNodeAsync(
+      String parent, Node node, String nodeId) {
+    CreateNodeRequest request =
+        CreateNodeRequest.newBuilder().setParent(parent).setNode(node).setNodeId(nodeId).build();
+    return createNodeAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   CreateNodeRequest request =
+   *       CreateNodeRequest.newBuilder()
+   *           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+   *           .setNodeId("nodeId-1040171331")
+   *           .setNode(Node.newBuilder().build())
+   *           .build();
+   *   Node response = tpuClient.createNodeAsync(request).get();
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> createNodeAsync(CreateNodeRequest request) {
+    return createNodeOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   CreateNodeRequest request =
+   *       CreateNodeRequest.newBuilder()
+   *           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+   *           .setNodeId("nodeId-1040171331")
+   *           .setNode(Node.newBuilder().build())
+   *           .build();
+   *   OperationFuture<Node, OperationMetadata> future =
+   *       tpuClient.createNodeOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Node response = future.get();
+   * }
+   * }</pre>
+   */
+  public final OperationCallable<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationCallable() {
+    return stub.createNodeOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Creates a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   CreateNodeRequest request =
+   *       CreateNodeRequest.newBuilder()
+   *           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+   *           .setNodeId("nodeId-1040171331")
+   *           .setNode(Node.newBuilder().build())
+   *           .build();
+   *   ApiFuture<Operation> future = tpuClient.createNodeCallable().futureCall(request);
+   *   // Do something.
+   *   Operation response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<CreateNodeRequest, Operation> createNodeCallable() {
+    return stub.createNodeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Deletes a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+   *   Node response = tpuClient.deleteNodeAsync(name).get();
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> deleteNodeAsync(NodeName name) {
+    DeleteNodeRequest request =
+        DeleteNodeRequest.newBuilder().setName(name == null ? null : name.toString()).build();
+    return deleteNodeAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Deletes a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString();
+   *   Node response = tpuClient.deleteNodeAsync(name).get();
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> deleteNodeAsync(String name) {
+    DeleteNodeRequest request = DeleteNodeRequest.newBuilder().setName(name).build();
+    return deleteNodeAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Deletes a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   DeleteNodeRequest request =
+   *       DeleteNodeRequest.newBuilder()
+   *           .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .build();
+   *   Node response = tpuClient.deleteNodeAsync(request).get();
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> deleteNodeAsync(DeleteNodeRequest request) {
+    return deleteNodeOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Deletes a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   DeleteNodeRequest request =
+   *       DeleteNodeRequest.newBuilder()
+   *           .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .build();
+   *   OperationFuture<Node, OperationMetadata> future =
+   *       tpuClient.deleteNodeOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Node response = future.get();
+   * }
+   * }</pre>
+   */
+  public final OperationCallable<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationCallable() {
+    return stub.deleteNodeOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Deletes a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   DeleteNodeRequest request =
+   *       DeleteNodeRequest.newBuilder()
+   *           .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .build();
+   *   ApiFuture<Operation> future = tpuClient.deleteNodeCallable().futureCall(request);
+   *   // Do something.
+   *   Operation response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<DeleteNodeRequest, Operation> deleteNodeCallable() {
+    return stub.deleteNodeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Stops a node. This operation is only available with single TPU nodes.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+   *   Node response = tpuClient.stopNodeAsync(request).get();
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> stopNodeAsync(StopNodeRequest request) {
+    return stopNodeOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Stops a node. This operation is only available with single TPU nodes.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+   *   OperationFuture<Node, OperationMetadata> future =
+   *       tpuClient.stopNodeOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Node response = future.get();
+   * }
+   * }</pre>
+   */
+  public final OperationCallable<StopNodeRequest, Node, OperationMetadata>
+      stopNodeOperationCallable() {
+    return stub.stopNodeOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Stops a node. This operation is only available with single TPU nodes.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+   *   ApiFuture<Operation> future = tpuClient.stopNodeCallable().futureCall(request);
+   *   // Do something.
+   *   Operation response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<StopNodeRequest, Operation> stopNodeCallable() {
+    return stub.stopNodeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Starts a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+   *   Node response = tpuClient.startNodeAsync(request).get();
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> startNodeAsync(StartNodeRequest request) {
+    return startNodeOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Starts a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+   *   OperationFuture<Node, OperationMetadata> future =
+   *       tpuClient.startNodeOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Node response = future.get();
+   * }
+   * }</pre>
+   */
+  public final OperationCallable<StartNodeRequest, Node, OperationMetadata>
+      startNodeOperationCallable() {
+    return stub.startNodeOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Starts a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+   *   ApiFuture<Operation> future = tpuClient.startNodeCallable().futureCall(request);
+   *   // Do something.
+   *   Operation response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<StartNodeRequest, Operation> startNodeCallable() {
+    return stub.startNodeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Updates the configurations of a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   Node node = Node.newBuilder().build();
+   *   FieldMask updateMask = FieldMask.newBuilder().build();
+   *   Node response = tpuClient.updateNodeAsync(node, updateMask).get();
+   * }
+   * }</pre>
+   *
+   * @param node Required. The node. Only fields specified in update_mask are updated.
+   * @param updateMask Required. Mask of fields from [Node][Tpu.Node] to update. Supported fields:
+   *     None.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> updateNodeAsync(
+      Node node, FieldMask updateMask) {
+    UpdateNodeRequest request =
+        UpdateNodeRequest.newBuilder().setNode(node).setUpdateMask(updateMask).build();
+    return updateNodeAsync(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Updates the configurations of a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   UpdateNodeRequest request =
+   *       UpdateNodeRequest.newBuilder()
+   *           .setUpdateMask(FieldMask.newBuilder().build())
+   *           .setNode(Node.newBuilder().build())
+   *           .build();
+   *   Node response = tpuClient.updateNodeAsync(request).get();
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final OperationFuture<Node, OperationMetadata> updateNodeAsync(UpdateNodeRequest request) {
+    return updateNodeOperationCallable().futureCall(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Updates the configurations of a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   UpdateNodeRequest request =
+   *       UpdateNodeRequest.newBuilder()
+   *           .setUpdateMask(FieldMask.newBuilder().build())
+   *           .setNode(Node.newBuilder().build())
+   *           .build();
+   *   OperationFuture<Node, OperationMetadata> future =
+   *       tpuClient.updateNodeOperationCallable().futureCall(request);
+   *   // Do something.
+   *   Node response = future.get();
+   * }
+   * }</pre>
+   */
+  public final OperationCallable<UpdateNodeRequest, Node, OperationMetadata>
+      updateNodeOperationCallable() {
+    return stub.updateNodeOperationCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Updates the configurations of a node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   UpdateNodeRequest request =
+   *       UpdateNodeRequest.newBuilder()
+   *           .setUpdateMask(FieldMask.newBuilder().build())
+   *           .setNode(Node.newBuilder().build())
+   *           .build();
+   *   ApiFuture<Operation> future = tpuClient.updateNodeCallable().futureCall(request);
+   *   // Do something.
+   *   Operation response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<UpdateNodeRequest, Operation> updateNodeCallable() {
+    return stub.updateNodeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Generates the Cloud TPU service identity for the project.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GenerateServiceIdentityRequest request =
+   *       GenerateServiceIdentityRequest.newBuilder()
+   *           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+   *           .build();
+   *   GenerateServiceIdentityResponse response = tpuClient.generateServiceIdentity(request);
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final GenerateServiceIdentityResponse generateServiceIdentity(
+      GenerateServiceIdentityRequest request) {
+    return generateServiceIdentityCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Generates the Cloud TPU service identity for the project.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GenerateServiceIdentityRequest request =
+   *       GenerateServiceIdentityRequest.newBuilder()
+   *           .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+   *           .build();
+   *   ApiFuture<GenerateServiceIdentityResponse> future =
+   *       tpuClient.generateServiceIdentityCallable().futureCall(request);
+   *   // Do something.
+   *   GenerateServiceIdentityResponse response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>
+      generateServiceIdentityCallable() {
+    return stub.generateServiceIdentityCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists accelerator types supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   AcceleratorTypeName parent =
+   *       AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+   *   for (AcceleratorType element : tpuClient.listAcceleratorTypes(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListAcceleratorTypesPagedResponse listAcceleratorTypes(AcceleratorTypeName parent) {
+    ListAcceleratorTypesRequest request =
+        ListAcceleratorTypesRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .build();
+    return listAcceleratorTypes(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists accelerator types supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String parent =
+   *       AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]").toString();
+   *   for (AcceleratorType element : tpuClient.listAcceleratorTypes(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListAcceleratorTypesPagedResponse listAcceleratorTypes(String parent) {
+    ListAcceleratorTypesRequest request =
+        ListAcceleratorTypesRequest.newBuilder().setParent(parent).build();
+    return listAcceleratorTypes(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists accelerator types supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListAcceleratorTypesRequest request =
+   *       ListAcceleratorTypesRequest.newBuilder()
+   *           .setParent(
+   *               AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+   *                   .toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .setFilter("filter-1274492040")
+   *           .setOrderBy("orderBy-1207110587")
+   *           .build();
+   *   for (AcceleratorType element : tpuClient.listAcceleratorTypes(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListAcceleratorTypesPagedResponse listAcceleratorTypes(
+      ListAcceleratorTypesRequest request) {
+    return listAcceleratorTypesPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists accelerator types supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListAcceleratorTypesRequest request =
+   *       ListAcceleratorTypesRequest.newBuilder()
+   *           .setParent(
+   *               AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+   *                   .toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .setFilter("filter-1274492040")
+   *           .setOrderBy("orderBy-1207110587")
+   *           .build();
+   *   ApiFuture<AcceleratorType> future =
+   *       tpuClient.listAcceleratorTypesPagedCallable().futureCall(request);
+   *   // Do something.
+   *   for (AcceleratorType element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesPagedCallable() {
+    return stub.listAcceleratorTypesPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists accelerator types supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListAcceleratorTypesRequest request =
+   *       ListAcceleratorTypesRequest.newBuilder()
+   *           .setParent(
+   *               AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+   *                   .toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .setFilter("filter-1274492040")
+   *           .setOrderBy("orderBy-1207110587")
+   *           .build();
+   *   while (true) {
+   *     ListAcceleratorTypesResponse response =
+   *         tpuClient.listAcceleratorTypesCallable().call(request);
+   *     for (AcceleratorType element : response.getAcceleratorTypesList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>
+      listAcceleratorTypesCallable() {
+    return stub.listAcceleratorTypesCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets AcceleratorType.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   AcceleratorTypeName name =
+   *       AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+   *   AcceleratorType response = tpuClient.getAcceleratorType(name);
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final AcceleratorType getAcceleratorType(AcceleratorTypeName name) {
+    GetAcceleratorTypeRequest request =
+        GetAcceleratorTypeRequest.newBuilder()
+            .setName(name == null ? null : name.toString())
+            .build();
+    return getAcceleratorType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets AcceleratorType.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String name =
+   *       AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]").toString();
+   *   AcceleratorType response = tpuClient.getAcceleratorType(name);
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final AcceleratorType getAcceleratorType(String name) {
+    GetAcceleratorTypeRequest request =
+        GetAcceleratorTypeRequest.newBuilder().setName(name).build();
+    return getAcceleratorType(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets AcceleratorType.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetAcceleratorTypeRequest request =
+   *       GetAcceleratorTypeRequest.newBuilder()
+   *           .setName(
+   *               AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+   *                   .toString())
+   *           .build();
+   *   AcceleratorType response = tpuClient.getAcceleratorType(request);
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final AcceleratorType getAcceleratorType(GetAcceleratorTypeRequest request) {
+    return getAcceleratorTypeCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets AcceleratorType.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetAcceleratorTypeRequest request =
+   *       GetAcceleratorTypeRequest.newBuilder()
+   *           .setName(
+   *               AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+   *                   .toString())
+   *           .build();
+   *   ApiFuture<AcceleratorType> future =
+   *       tpuClient.getAcceleratorTypeCallable().futureCall(request);
+   *   // Do something.
+   *   AcceleratorType response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<GetAcceleratorTypeRequest, AcceleratorType>
+      getAcceleratorTypeCallable() {
+    return stub.getAcceleratorTypeCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists runtime versions supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   RuntimeVersionName parent =
+   *       RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]");
+   *   for (RuntimeVersion element : tpuClient.listRuntimeVersions(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListRuntimeVersionsPagedResponse listRuntimeVersions(RuntimeVersionName parent) {
+    ListRuntimeVersionsRequest request =
+        ListRuntimeVersionsRequest.newBuilder()
+            .setParent(parent == null ? null : parent.toString())
+            .build();
+    return listRuntimeVersions(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists runtime versions supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String parent =
+   *       RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString();
+   *   for (RuntimeVersion element : tpuClient.listRuntimeVersions(parent).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param parent Required. The parent resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListRuntimeVersionsPagedResponse listRuntimeVersions(String parent) {
+    ListRuntimeVersionsRequest request =
+        ListRuntimeVersionsRequest.newBuilder().setParent(parent).build();
+    return listRuntimeVersions(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists runtime versions supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListRuntimeVersionsRequest request =
+   *       ListRuntimeVersionsRequest.newBuilder()
+   *           .setParent(
+   *               RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .setFilter("filter-1274492040")
+   *           .setOrderBy("orderBy-1207110587")
+   *           .build();
+   *   for (RuntimeVersion element : tpuClient.listRuntimeVersions(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final ListRuntimeVersionsPagedResponse listRuntimeVersions(
+      ListRuntimeVersionsRequest request) {
+    return listRuntimeVersionsPagedCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists runtime versions supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListRuntimeVersionsRequest request =
+   *       ListRuntimeVersionsRequest.newBuilder()
+   *           .setParent(
+   *               RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .setFilter("filter-1274492040")
+   *           .setOrderBy("orderBy-1207110587")
+   *           .build();
+   *   ApiFuture<RuntimeVersion> future =
+   *       tpuClient.listRuntimeVersionsPagedCallable().futureCall(request);
+   *   // Do something.
+   *   for (RuntimeVersion element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<ListRuntimeVersionsRequest, ListRuntimeVersionsPagedResponse>
+      listRuntimeVersionsPagedCallable() {
+    return stub.listRuntimeVersionsPagedCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Lists runtime versions supported by this API.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   ListRuntimeVersionsRequest request =
+   *       ListRuntimeVersionsRequest.newBuilder()
+   *           .setParent(
+   *               RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString())
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .setFilter("filter-1274492040")
+   *           .setOrderBy("orderBy-1207110587")
+   *           .build();
+   *   while (true) {
+   *     ListRuntimeVersionsResponse response =
+   *         tpuClient.listRuntimeVersionsCallable().call(request);
+   *     for (RuntimeVersion element : response.getRuntimeVersionsList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse>
+      listRuntimeVersionsCallable() {
+    return stub.listRuntimeVersionsCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets a runtime version.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   RuntimeVersionName name =
+   *       RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]");
+   *   RuntimeVersion response = tpuClient.getRuntimeVersion(name);
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final RuntimeVersion getRuntimeVersion(RuntimeVersionName name) {
+    GetRuntimeVersionRequest request =
+        GetRuntimeVersionRequest.newBuilder()
+            .setName(name == null ? null : name.toString())
+            .build();
+    return getRuntimeVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets a runtime version.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   String name =
+   *       RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString();
+   *   RuntimeVersion response = tpuClient.getRuntimeVersion(name);
+   * }
+   * }</pre>
+   *
+   * @param name Required. The resource name.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final RuntimeVersion getRuntimeVersion(String name) {
+    GetRuntimeVersionRequest request = GetRuntimeVersionRequest.newBuilder().setName(name).build();
+    return getRuntimeVersion(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets a runtime version.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetRuntimeVersionRequest request =
+   *       GetRuntimeVersionRequest.newBuilder()
+   *           .setName(
+   *               RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString())
+   *           .build();
+   *   RuntimeVersion response = tpuClient.getRuntimeVersion(request);
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final RuntimeVersion getRuntimeVersion(GetRuntimeVersionRequest request) {
+    return getRuntimeVersionCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Gets a runtime version.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetRuntimeVersionRequest request =
+   *       GetRuntimeVersionRequest.newBuilder()
+   *           .setName(
+   *               RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString())
+   *           .build();
+   *   ApiFuture<RuntimeVersion> future = tpuClient.getRuntimeVersionCallable().futureCall(request);
+   *   // Do something.
+   *   RuntimeVersion response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<GetRuntimeVersionRequest, RuntimeVersion> getRuntimeVersionCallable() {
+    return stub.getRuntimeVersionCallable();
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Retrieves the guest attributes for the node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetGuestAttributesRequest request =
+   *       GetGuestAttributesRequest.newBuilder()
+   *           .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .setQueryPath("queryPath-1807004403")
+   *           .addAllWorkerIds(new ArrayList<String>())
+   *           .build();
+   *   GetGuestAttributesResponse response = tpuClient.getGuestAttributes(request);
+   * }
+   * }</pre>
+   *
+   * @param request The request object containing all of the parameters for the API call.
+   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
+   */
+  public final GetGuestAttributesResponse getGuestAttributes(GetGuestAttributesRequest request) {
+    return getGuestAttributesCallable().call(request);
+  }
+
+  // AUTO-GENERATED DOCUMENTATION AND METHOD.
+  /**
+   * Retrieves the guest attributes for the node.
+   *
+   * <p>Sample code:
+   *
+   * <pre>{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (TpuClient tpuClient = TpuClient.create()) {
+   *   GetGuestAttributesRequest request =
+   *       GetGuestAttributesRequest.newBuilder()
+   *           .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+   *           .setQueryPath("queryPath-1807004403")
+   *           .addAllWorkerIds(new ArrayList<String>())
+   *           .build();
+   *   ApiFuture<GetGuestAttributesResponse> future =
+   *       tpuClient.getGuestAttributesCallable().futureCall(request);
+   *   // Do something.
+   *   GetGuestAttributesResponse response = future.get();
+   * }
+   * }</pre>
+   */
+  public final UnaryCallable<GetGuestAttributesRequest, GetGuestAttributesResponse>
+      getGuestAttributesCallable() {
+    return stub.getGuestAttributesCallable();
+  }
+
+  @Override
+  public final void close() {
+    stub.close();
+  }
+
+  @Override
+  public void shutdown() {
+    stub.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return stub.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return stub.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    stub.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return stub.awaitTermination(duration, unit);
+  }
+
+  public static class ListNodesPagedResponse
+      extends AbstractPagedListResponse<
+          ListNodesRequest, ListNodesResponse, Node, ListNodesPage, ListNodesFixedSizeCollection> {
+
+    public static ApiFuture<ListNodesPagedResponse> createAsync(
+        PageContext<ListNodesRequest, ListNodesResponse, Node> context,
+        ApiFuture<ListNodesResponse> futureResponse) {
+      ApiFuture<ListNodesPage> futurePage =
+          ListNodesPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage, input -> new ListNodesPagedResponse(input), MoreExecutors.directExecutor());
+    }
+
+    private ListNodesPagedResponse(ListNodesPage page) {
+      super(page, ListNodesFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListNodesPage
+      extends AbstractPage<ListNodesRequest, ListNodesResponse, Node, ListNodesPage> {
+
+    private ListNodesPage(
+        PageContext<ListNodesRequest, ListNodesResponse, Node> context,
+        ListNodesResponse response) {
+      super(context, response);
+    }
+
+    private static ListNodesPage createEmptyPage() {
+      return new ListNodesPage(null, null);
+    }
+
+    @Override
+    protected ListNodesPage createPage(
+        PageContext<ListNodesRequest, ListNodesResponse, Node> context,
+        ListNodesResponse response) {
+      return new ListNodesPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListNodesPage> createPageAsync(
+        PageContext<ListNodesRequest, ListNodesResponse, Node> context,
+        ApiFuture<ListNodesResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListNodesFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListNodesRequest, ListNodesResponse, Node, ListNodesPage, ListNodesFixedSizeCollection> {
+
+    private ListNodesFixedSizeCollection(List<ListNodesPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListNodesFixedSizeCollection createEmptyCollection() {
+      return new ListNodesFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListNodesFixedSizeCollection createCollection(
+        List<ListNodesPage> pages, int collectionSize) {
+      return new ListNodesFixedSizeCollection(pages, collectionSize);
+    }
+  }
+
+  public static class ListAcceleratorTypesPagedResponse
+      extends AbstractPagedListResponse<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          AcceleratorType,
+          ListAcceleratorTypesPage,
+          ListAcceleratorTypesFixedSizeCollection> {
+
+    public static ApiFuture<ListAcceleratorTypesPagedResponse> createAsync(
+        PageContext<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>
+            context,
+        ApiFuture<ListAcceleratorTypesResponse> futureResponse) {
+      ApiFuture<ListAcceleratorTypesPage> futurePage =
+          ListAcceleratorTypesPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          input -> new ListAcceleratorTypesPagedResponse(input),
+          MoreExecutors.directExecutor());
+    }
+
+    private ListAcceleratorTypesPagedResponse(ListAcceleratorTypesPage page) {
+      super(page, ListAcceleratorTypesFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListAcceleratorTypesPage
+      extends AbstractPage<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          AcceleratorType,
+          ListAcceleratorTypesPage> {
+
+    private ListAcceleratorTypesPage(
+        PageContext<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>
+            context,
+        ListAcceleratorTypesResponse response) {
+      super(context, response);
+    }
+
+    private static ListAcceleratorTypesPage createEmptyPage() {
+      return new ListAcceleratorTypesPage(null, null);
+    }
+
+    @Override
+    protected ListAcceleratorTypesPage createPage(
+        PageContext<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>
+            context,
+        ListAcceleratorTypesResponse response) {
+      return new ListAcceleratorTypesPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListAcceleratorTypesPage> createPageAsync(
+        PageContext<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>
+            context,
+        ApiFuture<ListAcceleratorTypesResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListAcceleratorTypesFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          AcceleratorType,
+          ListAcceleratorTypesPage,
+          ListAcceleratorTypesFixedSizeCollection> {
+
+    private ListAcceleratorTypesFixedSizeCollection(
+        List<ListAcceleratorTypesPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListAcceleratorTypesFixedSizeCollection createEmptyCollection() {
+      return new ListAcceleratorTypesFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListAcceleratorTypesFixedSizeCollection createCollection(
+        List<ListAcceleratorTypesPage> pages, int collectionSize) {
+      return new ListAcceleratorTypesFixedSizeCollection(pages, collectionSize);
+    }
+  }
+
+  public static class ListRuntimeVersionsPagedResponse
+      extends AbstractPagedListResponse<
+          ListRuntimeVersionsRequest,
+          ListRuntimeVersionsResponse,
+          RuntimeVersion,
+          ListRuntimeVersionsPage,
+          ListRuntimeVersionsFixedSizeCollection> {
+
+    public static ApiFuture<ListRuntimeVersionsPagedResponse> createAsync(
+        PageContext<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse, RuntimeVersion>
+            context,
+        ApiFuture<ListRuntimeVersionsResponse> futureResponse) {
+      ApiFuture<ListRuntimeVersionsPage> futurePage =
+          ListRuntimeVersionsPage.createEmptyPage().createPageAsync(context, futureResponse);
+      return ApiFutures.transform(
+          futurePage,
+          input -> new ListRuntimeVersionsPagedResponse(input),
+          MoreExecutors.directExecutor());
+    }
+
+    private ListRuntimeVersionsPagedResponse(ListRuntimeVersionsPage page) {
+      super(page, ListRuntimeVersionsFixedSizeCollection.createEmptyCollection());
+    }
+  }
+
+  public static class ListRuntimeVersionsPage
+      extends AbstractPage<
+          ListRuntimeVersionsRequest,
+          ListRuntimeVersionsResponse,
+          RuntimeVersion,
+          ListRuntimeVersionsPage> {
+
+    private ListRuntimeVersionsPage(
+        PageContext<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse, RuntimeVersion>
+            context,
+        ListRuntimeVersionsResponse response) {
+      super(context, response);
+    }
+
+    private static ListRuntimeVersionsPage createEmptyPage() {
+      return new ListRuntimeVersionsPage(null, null);
+    }
+
+    @Override
+    protected ListRuntimeVersionsPage createPage(
+        PageContext<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse, RuntimeVersion>
+            context,
+        ListRuntimeVersionsResponse response) {
+      return new ListRuntimeVersionsPage(context, response);
+    }
+
+    @Override
+    public ApiFuture<ListRuntimeVersionsPage> createPageAsync(
+        PageContext<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse, RuntimeVersion>
+            context,
+        ApiFuture<ListRuntimeVersionsResponse> futureResponse) {
+      return super.createPageAsync(context, futureResponse);
+    }
+  }
+
+  public static class ListRuntimeVersionsFixedSizeCollection
+      extends AbstractFixedSizeCollection<
+          ListRuntimeVersionsRequest,
+          ListRuntimeVersionsResponse,
+          RuntimeVersion,
+          ListRuntimeVersionsPage,
+          ListRuntimeVersionsFixedSizeCollection> {
+
+    private ListRuntimeVersionsFixedSizeCollection(
+        List<ListRuntimeVersionsPage> pages, int collectionSize) {
+      super(pages, collectionSize);
+    }
+
+    private static ListRuntimeVersionsFixedSizeCollection createEmptyCollection() {
+      return new ListRuntimeVersionsFixedSizeCollection(null, 0);
+    }
+
+    @Override
+    protected ListRuntimeVersionsFixedSizeCollection createCollection(
+        List<ListRuntimeVersionsPage> pages, int collectionSize) {
+      return new ListRuntimeVersionsFixedSizeCollection(pages, collectionSize);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/TpuSettings.java b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/TpuSettings.java
new file mode 100644
index 000000000000..3bcc3ac16b7e
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/TpuSettings.java
@@ -0,0 +1,394 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1;
+
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListAcceleratorTypesPagedResponse;
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListNodesPagedResponse;
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListRuntimeVersionsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.tpu.v2alpha1.stub.TpuStubSettings;
+import com.google.longrunning.Operation;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Settings class to configure an instance of {@link TpuClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (tpu.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getNode to 30 seconds:
+ *
+ * <pre>{@code
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+ * TpuSettings.Builder tpuSettingsBuilder = TpuSettings.newBuilder();
+ * tpuSettingsBuilder
+ *     .getNodeSettings()
+ *     .setRetrySettings(
+ *         tpuSettingsBuilder.getNodeSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * TpuSettings tpuSettings = tpuSettingsBuilder.build();
+ * }</pre>
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class TpuSettings extends ClientSettings<TpuSettings> {
+
+  /** Returns the object with the settings used for calls to listNodes. */
+  public PagedCallSettings<ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+      listNodesSettings() {
+    return ((TpuStubSettings) getStubSettings()).listNodesSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getNode. */
+  public UnaryCallSettings<GetNodeRequest, Node> getNodeSettings() {
+    return ((TpuStubSettings) getStubSettings()).getNodeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createNode. */
+  public UnaryCallSettings<CreateNodeRequest, Operation> createNodeSettings() {
+    return ((TpuStubSettings) getStubSettings()).createNodeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createNode. */
+  public OperationCallSettings<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationSettings() {
+    return ((TpuStubSettings) getStubSettings()).createNodeOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteNode. */
+  public UnaryCallSettings<DeleteNodeRequest, Operation> deleteNodeSettings() {
+    return ((TpuStubSettings) getStubSettings()).deleteNodeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteNode. */
+  public OperationCallSettings<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationSettings() {
+    return ((TpuStubSettings) getStubSettings()).deleteNodeOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to stopNode. */
+  public UnaryCallSettings<StopNodeRequest, Operation> stopNodeSettings() {
+    return ((TpuStubSettings) getStubSettings()).stopNodeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to stopNode. */
+  public OperationCallSettings<StopNodeRequest, Node, OperationMetadata>
+      stopNodeOperationSettings() {
+    return ((TpuStubSettings) getStubSettings()).stopNodeOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to startNode. */
+  public UnaryCallSettings<StartNodeRequest, Operation> startNodeSettings() {
+    return ((TpuStubSettings) getStubSettings()).startNodeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to startNode. */
+  public OperationCallSettings<StartNodeRequest, Node, OperationMetadata>
+      startNodeOperationSettings() {
+    return ((TpuStubSettings) getStubSettings()).startNodeOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateNode. */
+  public UnaryCallSettings<UpdateNodeRequest, Operation> updateNodeSettings() {
+    return ((TpuStubSettings) getStubSettings()).updateNodeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateNode. */
+  public OperationCallSettings<UpdateNodeRequest, Node, OperationMetadata>
+      updateNodeOperationSettings() {
+    return ((TpuStubSettings) getStubSettings()).updateNodeOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to generateServiceIdentity. */
+  public UnaryCallSettings<GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>
+      generateServiceIdentitySettings() {
+    return ((TpuStubSettings) getStubSettings()).generateServiceIdentitySettings();
+  }
+
+  /** Returns the object with the settings used for calls to listAcceleratorTypes. */
+  public PagedCallSettings<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesSettings() {
+    return ((TpuStubSettings) getStubSettings()).listAcceleratorTypesSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getAcceleratorType. */
+  public UnaryCallSettings<GetAcceleratorTypeRequest, AcceleratorType>
+      getAcceleratorTypeSettings() {
+    return ((TpuStubSettings) getStubSettings()).getAcceleratorTypeSettings();
+  }
+
+  /** Returns the object with the settings used for calls to listRuntimeVersions. */
+  public PagedCallSettings<
+          ListRuntimeVersionsRequest, ListRuntimeVersionsResponse, ListRuntimeVersionsPagedResponse>
+      listRuntimeVersionsSettings() {
+    return ((TpuStubSettings) getStubSettings()).listRuntimeVersionsSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getRuntimeVersion. */
+  public UnaryCallSettings<GetRuntimeVersionRequest, RuntimeVersion> getRuntimeVersionSettings() {
+    return ((TpuStubSettings) getStubSettings()).getRuntimeVersionSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getGuestAttributes. */
+  public UnaryCallSettings<GetGuestAttributesRequest, GetGuestAttributesResponse>
+      getGuestAttributesSettings() {
+    return ((TpuStubSettings) getStubSettings()).getGuestAttributesSettings();
+  }
+
+  public static final TpuSettings create(TpuStubSettings stub) throws IOException {
+    return new TpuSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return TpuStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return TpuStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return TpuStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return TpuStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return TpuStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return TpuStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return TpuStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected TpuSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for TpuSettings. */
+  public static class Builder extends ClientSettings.Builder<TpuSettings, Builder> {
+
+    protected Builder() throws IOException {
+      this(((ClientContext) null));
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(TpuStubSettings.newBuilder(clientContext));
+    }
+
+    protected Builder(TpuSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(TpuStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    private static Builder createDefault() {
+      return new Builder(TpuStubSettings.newBuilder());
+    }
+
+    public TpuStubSettings.Builder getStubSettingsBuilder() {
+      return ((TpuStubSettings.Builder) getStubSettings());
+    }
+
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to listNodes. */
+    public PagedCallSettings.Builder<ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+        listNodesSettings() {
+      return getStubSettingsBuilder().listNodesSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getNode. */
+    public UnaryCallSettings.Builder<GetNodeRequest, Node> getNodeSettings() {
+      return getStubSettingsBuilder().getNodeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createNode. */
+    public UnaryCallSettings.Builder<CreateNodeRequest, Operation> createNodeSettings() {
+      return getStubSettingsBuilder().createNodeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createNode. */
+    public OperationCallSettings.Builder<CreateNodeRequest, Node, OperationMetadata>
+        createNodeOperationSettings() {
+      return getStubSettingsBuilder().createNodeOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteNode. */
+    public UnaryCallSettings.Builder<DeleteNodeRequest, Operation> deleteNodeSettings() {
+      return getStubSettingsBuilder().deleteNodeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteNode. */
+    public OperationCallSettings.Builder<DeleteNodeRequest, Node, OperationMetadata>
+        deleteNodeOperationSettings() {
+      return getStubSettingsBuilder().deleteNodeOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to stopNode. */
+    public UnaryCallSettings.Builder<StopNodeRequest, Operation> stopNodeSettings() {
+      return getStubSettingsBuilder().stopNodeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to stopNode. */
+    public OperationCallSettings.Builder<StopNodeRequest, Node, OperationMetadata>
+        stopNodeOperationSettings() {
+      return getStubSettingsBuilder().stopNodeOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to startNode. */
+    public UnaryCallSettings.Builder<StartNodeRequest, Operation> startNodeSettings() {
+      return getStubSettingsBuilder().startNodeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to startNode. */
+    public OperationCallSettings.Builder<StartNodeRequest, Node, OperationMetadata>
+        startNodeOperationSettings() {
+      return getStubSettingsBuilder().startNodeOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateNode. */
+    public UnaryCallSettings.Builder<UpdateNodeRequest, Operation> updateNodeSettings() {
+      return getStubSettingsBuilder().updateNodeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateNode. */
+    public OperationCallSettings.Builder<UpdateNodeRequest, Node, OperationMetadata>
+        updateNodeOperationSettings() {
+      return getStubSettingsBuilder().updateNodeOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to generateServiceIdentity. */
+    public UnaryCallSettings.Builder<
+            GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>
+        generateServiceIdentitySettings() {
+      return getStubSettingsBuilder().generateServiceIdentitySettings();
+    }
+
+    /** Returns the builder for the settings used for calls to listAcceleratorTypes. */
+    public PagedCallSettings.Builder<
+            ListAcceleratorTypesRequest,
+            ListAcceleratorTypesResponse,
+            ListAcceleratorTypesPagedResponse>
+        listAcceleratorTypesSettings() {
+      return getStubSettingsBuilder().listAcceleratorTypesSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getAcceleratorType. */
+    public UnaryCallSettings.Builder<GetAcceleratorTypeRequest, AcceleratorType>
+        getAcceleratorTypeSettings() {
+      return getStubSettingsBuilder().getAcceleratorTypeSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to listRuntimeVersions. */
+    public PagedCallSettings.Builder<
+            ListRuntimeVersionsRequest,
+            ListRuntimeVersionsResponse,
+            ListRuntimeVersionsPagedResponse>
+        listRuntimeVersionsSettings() {
+      return getStubSettingsBuilder().listRuntimeVersionsSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getRuntimeVersion. */
+    public UnaryCallSettings.Builder<GetRuntimeVersionRequest, RuntimeVersion>
+        getRuntimeVersionSettings() {
+      return getStubSettingsBuilder().getRuntimeVersionSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getGuestAttributes. */
+    public UnaryCallSettings.Builder<GetGuestAttributesRequest, GetGuestAttributesResponse>
+        getGuestAttributesSettings() {
+      return getStubSettingsBuilder().getGuestAttributesSettings();
+    }
+
+    @Override
+    public TpuSettings build() throws IOException {
+      return new TpuSettings(this);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/gapic_metadata.json b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/gapic_metadata.json
new file mode 100644
index 000000000000..db678f19cbc3
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/gapic_metadata.json
@@ -0,0 +1,57 @@
+{
+  "schema": "1.0",
+  "comment": "This file maps proto services/RPCs to the corresponding library clients/methods",
+  "language": "java",
+  "protoPackage": "google.cloud.tpu.v2alpha1",
+  "libraryPackage": "com.google.cloud.tpu.v2alpha1",
+  "services": {
+    "Tpu": {
+      "clients": {
+        "grpc": {
+          "libraryClient": "TpuClient",
+          "rpcs": {
+            "CreateNode": {
+              "methods": ["createNodeAsync", "createNodeAsync", "createNodeAsync", "createNodeOperationCallable", "createNodeCallable"]
+            },
+            "DeleteNode": {
+              "methods": ["deleteNodeAsync", "deleteNodeAsync", "deleteNodeAsync", "deleteNodeOperationCallable", "deleteNodeCallable"]
+            },
+            "GenerateServiceIdentity": {
+              "methods": ["generateServiceIdentity", "generateServiceIdentityCallable"]
+            },
+            "GetAcceleratorType": {
+              "methods": ["getAcceleratorType", "getAcceleratorType", "getAcceleratorType", "getAcceleratorTypeCallable"]
+            },
+            "GetGuestAttributes": {
+              "methods": ["getGuestAttributes", "getGuestAttributesCallable"]
+            },
+            "GetNode": {
+              "methods": ["getNode", "getNode", "getNode", "getNodeCallable"]
+            },
+            "GetRuntimeVersion": {
+              "methods": ["getRuntimeVersion", "getRuntimeVersion", "getRuntimeVersion", "getRuntimeVersionCallable"]
+            },
+            "ListAcceleratorTypes": {
+              "methods": ["listAcceleratorTypes", "listAcceleratorTypes", "listAcceleratorTypes", "listAcceleratorTypesPagedCallable", "listAcceleratorTypesCallable"]
+            },
+            "ListNodes": {
+              "methods": ["listNodes", "listNodes", "listNodes", "listNodesPagedCallable", "listNodesCallable"]
+            },
+            "ListRuntimeVersions": {
+              "methods": ["listRuntimeVersions", "listRuntimeVersions", "listRuntimeVersions", "listRuntimeVersionsPagedCallable", "listRuntimeVersionsCallable"]
+            },
+            "StartNode": {
+              "methods": ["startNodeAsync", "startNodeOperationCallable", "startNodeCallable"]
+            },
+            "StopNode": {
+              "methods": ["stopNodeAsync", "stopNodeOperationCallable", "stopNodeCallable"]
+            },
+            "UpdateNode": {
+              "methods": ["updateNodeAsync", "updateNodeAsync", "updateNodeOperationCallable", "updateNodeCallable"]
+            }
+          }
+        }
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/package-info.java b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/package-info.java
new file mode 100644
index 000000000000..556bc1c77ba5
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/package-info.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * A client to Cloud TPU API
+ *
+ * <p>The interfaces provided are listed below, along with usage samples.
+ *
+ * <p>======================= TpuClient =======================
+ *
+ * <p>Service Description: Manages TPU nodes and other resources
+ *
+ * <p>TPU API v2alpha1
+ *
+ * <p>Sample for TpuClient:
+ *
+ * <pre>{@code
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+ * try (TpuClient tpuClient = TpuClient.create()) {
+ *   NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+ *   Node response = tpuClient.getNode(name);
+ * }
+ * }</pre>
+ */
+@Generated("by gapic-generator-java")
+package com.google.cloud.tpu.v2alpha1;
+
+import javax.annotation.Generated;
diff --git a/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/stub/GrpcTpuCallableFactory.java b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/stub/GrpcTpuCallableFactory.java
new file mode 100644
index 000000000000..98e979c2ef27
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/stub/GrpcTpuCallableFactory.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcCallableFactory;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.BidiStreamingCallable;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientStreamingCallable;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.StreamingCallSettings;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * gRPC callable factory implementation for the Tpu service API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class GrpcTpuCallableFactory implements GrpcStubCallableFactory {
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createUnaryCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createPagedCallable(grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return GrpcCallableFactory.createBatchingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          GrpcCallSettings<RequestT, Operation> grpcCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> callSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    return GrpcCallableFactory.createOperationCallable(
+        grpcCallSettings, callSettings, clientContext, operationsStub);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      BidiStreamingCallable<RequestT, ResponseT> createBidiStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createBidiStreamingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createServerStreamingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ClientStreamingCallable<RequestT, ResponseT> createClientStreamingCallable(
+          GrpcCallSettings<RequestT, ResponseT> grpcCallSettings,
+          StreamingCallSettings<RequestT, ResponseT> callSettings,
+          ClientContext clientContext) {
+    return GrpcCallableFactory.createClientStreamingCallable(
+        grpcCallSettings, callSettings, clientContext);
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/stub/GrpcTpuStub.java b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/stub/GrpcTpuStub.java
new file mode 100644
index 000000000000..27fb59a72b2e
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/stub/GrpcTpuStub.java
@@ -0,0 +1,655 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.stub;
+
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListAcceleratorTypesPagedResponse;
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListNodesPagedResponse;
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListRuntimeVersionsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.core.BackgroundResourceAggregation;
+import com.google.api.gax.grpc.GrpcCallSettings;
+import com.google.api.gax.grpc.GrpcStubCallableFactory;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.tpu.v2alpha1.AcceleratorType;
+import com.google.cloud.tpu.v2alpha1.CreateNodeRequest;
+import com.google.cloud.tpu.v2alpha1.DeleteNodeRequest;
+import com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest;
+import com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse;
+import com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest;
+import com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest;
+import com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse;
+import com.google.cloud.tpu.v2alpha1.GetNodeRequest;
+import com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest;
+import com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest;
+import com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse;
+import com.google.cloud.tpu.v2alpha1.ListNodesRequest;
+import com.google.cloud.tpu.v2alpha1.ListNodesResponse;
+import com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest;
+import com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.OperationMetadata;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersion;
+import com.google.cloud.tpu.v2alpha1.StartNodeRequest;
+import com.google.cloud.tpu.v2alpha1.StopNodeRequest;
+import com.google.cloud.tpu.v2alpha1.UpdateNodeRequest;
+import com.google.common.collect.ImmutableMap;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.GrpcOperationsStub;
+import io.grpc.MethodDescriptor;
+import io.grpc.protobuf.ProtoUtils;
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * gRPC stub implementation for the Tpu service API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class GrpcTpuStub extends TpuStub {
+  private static final MethodDescriptor<ListNodesRequest, ListNodesResponse>
+      listNodesMethodDescriptor =
+          MethodDescriptor.<ListNodesRequest, ListNodesResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.tpu.v2alpha1.Tpu/ListNodes")
+              .setRequestMarshaller(ProtoUtils.marshaller(ListNodesRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(ListNodesResponse.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor<GetNodeRequest, Node> getNodeMethodDescriptor =
+      MethodDescriptor.<GetNodeRequest, Node>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.tpu.v2alpha1.Tpu/GetNode")
+          .setRequestMarshaller(ProtoUtils.marshaller(GetNodeRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Node.getDefaultInstance()))
+          .build();
+
+  private static final MethodDescriptor<CreateNodeRequest, Operation> createNodeMethodDescriptor =
+      MethodDescriptor.<CreateNodeRequest, Operation>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.tpu.v2alpha1.Tpu/CreateNode")
+          .setRequestMarshaller(ProtoUtils.marshaller(CreateNodeRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+          .build();
+
+  private static final MethodDescriptor<DeleteNodeRequest, Operation> deleteNodeMethodDescriptor =
+      MethodDescriptor.<DeleteNodeRequest, Operation>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.tpu.v2alpha1.Tpu/DeleteNode")
+          .setRequestMarshaller(ProtoUtils.marshaller(DeleteNodeRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+          .build();
+
+  private static final MethodDescriptor<StopNodeRequest, Operation> stopNodeMethodDescriptor =
+      MethodDescriptor.<StopNodeRequest, Operation>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.tpu.v2alpha1.Tpu/StopNode")
+          .setRequestMarshaller(ProtoUtils.marshaller(StopNodeRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+          .build();
+
+  private static final MethodDescriptor<StartNodeRequest, Operation> startNodeMethodDescriptor =
+      MethodDescriptor.<StartNodeRequest, Operation>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.tpu.v2alpha1.Tpu/StartNode")
+          .setRequestMarshaller(ProtoUtils.marshaller(StartNodeRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+          .build();
+
+  private static final MethodDescriptor<UpdateNodeRequest, Operation> updateNodeMethodDescriptor =
+      MethodDescriptor.<UpdateNodeRequest, Operation>newBuilder()
+          .setType(MethodDescriptor.MethodType.UNARY)
+          .setFullMethodName("google.cloud.tpu.v2alpha1.Tpu/UpdateNode")
+          .setRequestMarshaller(ProtoUtils.marshaller(UpdateNodeRequest.getDefaultInstance()))
+          .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+          .build();
+
+  private static final MethodDescriptor<
+          GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>
+      generateServiceIdentityMethodDescriptor =
+          MethodDescriptor
+              .<GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.tpu.v2alpha1.Tpu/GenerateServiceIdentity")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(GenerateServiceIdentityRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(GenerateServiceIdentityResponse.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>
+      listAcceleratorTypesMethodDescriptor =
+          MethodDescriptor.<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.tpu.v2alpha1.Tpu/ListAcceleratorTypes")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(ListAcceleratorTypesRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(ListAcceleratorTypesResponse.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor<GetAcceleratorTypeRequest, AcceleratorType>
+      getAcceleratorTypeMethodDescriptor =
+          MethodDescriptor.<GetAcceleratorTypeRequest, AcceleratorType>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.tpu.v2alpha1.Tpu/GetAcceleratorType")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(GetAcceleratorTypeRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(AcceleratorType.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse>
+      listRuntimeVersionsMethodDescriptor =
+          MethodDescriptor.<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.tpu.v2alpha1.Tpu/ListRuntimeVersions")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(ListRuntimeVersionsRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(ListRuntimeVersionsResponse.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor<GetRuntimeVersionRequest, RuntimeVersion>
+      getRuntimeVersionMethodDescriptor =
+          MethodDescriptor.<GetRuntimeVersionRequest, RuntimeVersion>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.tpu.v2alpha1.Tpu/GetRuntimeVersion")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(GetRuntimeVersionRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(RuntimeVersion.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor<GetGuestAttributesRequest, GetGuestAttributesResponse>
+      getGuestAttributesMethodDescriptor =
+          MethodDescriptor.<GetGuestAttributesRequest, GetGuestAttributesResponse>newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.tpu.v2alpha1.Tpu/GetGuestAttributes")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(GetGuestAttributesRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(GetGuestAttributesResponse.getDefaultInstance()))
+              .build();
+
+  private final UnaryCallable<ListNodesRequest, ListNodesResponse> listNodesCallable;
+  private final UnaryCallable<ListNodesRequest, ListNodesPagedResponse> listNodesPagedCallable;
+  private final UnaryCallable<GetNodeRequest, Node> getNodeCallable;
+  private final UnaryCallable<CreateNodeRequest, Operation> createNodeCallable;
+  private final OperationCallable<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationCallable;
+  private final UnaryCallable<DeleteNodeRequest, Operation> deleteNodeCallable;
+  private final OperationCallable<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationCallable;
+  private final UnaryCallable<StopNodeRequest, Operation> stopNodeCallable;
+  private final OperationCallable<StopNodeRequest, Node, OperationMetadata>
+      stopNodeOperationCallable;
+  private final UnaryCallable<StartNodeRequest, Operation> startNodeCallable;
+  private final OperationCallable<StartNodeRequest, Node, OperationMetadata>
+      startNodeOperationCallable;
+  private final UnaryCallable<UpdateNodeRequest, Operation> updateNodeCallable;
+  private final OperationCallable<UpdateNodeRequest, Node, OperationMetadata>
+      updateNodeOperationCallable;
+  private final UnaryCallable<GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>
+      generateServiceIdentityCallable;
+  private final UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>
+      listAcceleratorTypesCallable;
+  private final UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesPagedCallable;
+  private final UnaryCallable<GetAcceleratorTypeRequest, AcceleratorType>
+      getAcceleratorTypeCallable;
+  private final UnaryCallable<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse>
+      listRuntimeVersionsCallable;
+  private final UnaryCallable<ListRuntimeVersionsRequest, ListRuntimeVersionsPagedResponse>
+      listRuntimeVersionsPagedCallable;
+  private final UnaryCallable<GetRuntimeVersionRequest, RuntimeVersion> getRuntimeVersionCallable;
+  private final UnaryCallable<GetGuestAttributesRequest, GetGuestAttributesResponse>
+      getGuestAttributesCallable;
+
+  private final BackgroundResource backgroundResources;
+  private final GrpcOperationsStub operationsStub;
+  private final GrpcStubCallableFactory callableFactory;
+
+  public static final GrpcTpuStub create(TpuStubSettings settings) throws IOException {
+    return new GrpcTpuStub(settings, ClientContext.create(settings));
+  }
+
+  public static final GrpcTpuStub create(ClientContext clientContext) throws IOException {
+    return new GrpcTpuStub(TpuStubSettings.newBuilder().build(), clientContext);
+  }
+
+  public static final GrpcTpuStub create(
+      ClientContext clientContext, GrpcStubCallableFactory callableFactory) throws IOException {
+    return new GrpcTpuStub(TpuStubSettings.newBuilder().build(), clientContext, callableFactory);
+  }
+
+  /**
+   * Constructs an instance of GrpcTpuStub, using the given settings. This is protected so that it
+   * is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcTpuStub(TpuStubSettings settings, ClientContext clientContext) throws IOException {
+    this(settings, clientContext, new GrpcTpuCallableFactory());
+  }
+
+  /**
+   * Constructs an instance of GrpcTpuStub, using the given settings. This is protected so that it
+   * is easy to make a subclass, but otherwise, the static factory methods should be preferred.
+   */
+  protected GrpcTpuStub(
+      TpuStubSettings settings,
+      ClientContext clientContext,
+      GrpcStubCallableFactory callableFactory)
+      throws IOException {
+    this.callableFactory = callableFactory;
+    this.operationsStub = GrpcOperationsStub.create(clientContext, callableFactory);
+
+    GrpcCallSettings<ListNodesRequest, ListNodesResponse> listNodesTransportSettings =
+        GrpcCallSettings.<ListNodesRequest, ListNodesResponse>newBuilder()
+            .setMethodDescriptor(listNodesMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("parent", String.valueOf(request.getParent()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<GetNodeRequest, Node> getNodeTransportSettings =
+        GrpcCallSettings.<GetNodeRequest, Node>newBuilder()
+            .setMethodDescriptor(getNodeMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("name", String.valueOf(request.getName()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<CreateNodeRequest, Operation> createNodeTransportSettings =
+        GrpcCallSettings.<CreateNodeRequest, Operation>newBuilder()
+            .setMethodDescriptor(createNodeMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("parent", String.valueOf(request.getParent()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<DeleteNodeRequest, Operation> deleteNodeTransportSettings =
+        GrpcCallSettings.<DeleteNodeRequest, Operation>newBuilder()
+            .setMethodDescriptor(deleteNodeMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("name", String.valueOf(request.getName()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<StopNodeRequest, Operation> stopNodeTransportSettings =
+        GrpcCallSettings.<StopNodeRequest, Operation>newBuilder()
+            .setMethodDescriptor(stopNodeMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("name", String.valueOf(request.getName()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<StartNodeRequest, Operation> startNodeTransportSettings =
+        GrpcCallSettings.<StartNodeRequest, Operation>newBuilder()
+            .setMethodDescriptor(startNodeMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("name", String.valueOf(request.getName()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<UpdateNodeRequest, Operation> updateNodeTransportSettings =
+        GrpcCallSettings.<UpdateNodeRequest, Operation>newBuilder()
+            .setMethodDescriptor(updateNodeMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("node.name", String.valueOf(request.getNode().getName()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>
+        generateServiceIdentityTransportSettings =
+            GrpcCallSettings
+                .<GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>newBuilder()
+                .setMethodDescriptor(generateServiceIdentityMethodDescriptor)
+                .setParamsExtractor(
+                    request -> {
+                      ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                      params.put("parent", String.valueOf(request.getParent()));
+                      return params.build();
+                    })
+                .build();
+    GrpcCallSettings<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>
+        listAcceleratorTypesTransportSettings =
+            GrpcCallSettings.<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>newBuilder()
+                .setMethodDescriptor(listAcceleratorTypesMethodDescriptor)
+                .setParamsExtractor(
+                    request -> {
+                      ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                      params.put("parent", String.valueOf(request.getParent()));
+                      return params.build();
+                    })
+                .build();
+    GrpcCallSettings<GetAcceleratorTypeRequest, AcceleratorType>
+        getAcceleratorTypeTransportSettings =
+            GrpcCallSettings.<GetAcceleratorTypeRequest, AcceleratorType>newBuilder()
+                .setMethodDescriptor(getAcceleratorTypeMethodDescriptor)
+                .setParamsExtractor(
+                    request -> {
+                      ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                      params.put("name", String.valueOf(request.getName()));
+                      return params.build();
+                    })
+                .build();
+    GrpcCallSettings<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse>
+        listRuntimeVersionsTransportSettings =
+            GrpcCallSettings.<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse>newBuilder()
+                .setMethodDescriptor(listRuntimeVersionsMethodDescriptor)
+                .setParamsExtractor(
+                    request -> {
+                      ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                      params.put("parent", String.valueOf(request.getParent()));
+                      return params.build();
+                    })
+                .build();
+    GrpcCallSettings<GetRuntimeVersionRequest, RuntimeVersion> getRuntimeVersionTransportSettings =
+        GrpcCallSettings.<GetRuntimeVersionRequest, RuntimeVersion>newBuilder()
+            .setMethodDescriptor(getRuntimeVersionMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("name", String.valueOf(request.getName()));
+                  return params.build();
+                })
+            .build();
+    GrpcCallSettings<GetGuestAttributesRequest, GetGuestAttributesResponse>
+        getGuestAttributesTransportSettings =
+            GrpcCallSettings.<GetGuestAttributesRequest, GetGuestAttributesResponse>newBuilder()
+                .setMethodDescriptor(getGuestAttributesMethodDescriptor)
+                .setParamsExtractor(
+                    request -> {
+                      ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                      params.put("name", String.valueOf(request.getName()));
+                      return params.build();
+                    })
+                .build();
+
+    this.listNodesCallable =
+        callableFactory.createUnaryCallable(
+            listNodesTransportSettings, settings.listNodesSettings(), clientContext);
+    this.listNodesPagedCallable =
+        callableFactory.createPagedCallable(
+            listNodesTransportSettings, settings.listNodesSettings(), clientContext);
+    this.getNodeCallable =
+        callableFactory.createUnaryCallable(
+            getNodeTransportSettings, settings.getNodeSettings(), clientContext);
+    this.createNodeCallable =
+        callableFactory.createUnaryCallable(
+            createNodeTransportSettings, settings.createNodeSettings(), clientContext);
+    this.createNodeOperationCallable =
+        callableFactory.createOperationCallable(
+            createNodeTransportSettings,
+            settings.createNodeOperationSettings(),
+            clientContext,
+            operationsStub);
+    this.deleteNodeCallable =
+        callableFactory.createUnaryCallable(
+            deleteNodeTransportSettings, settings.deleteNodeSettings(), clientContext);
+    this.deleteNodeOperationCallable =
+        callableFactory.createOperationCallable(
+            deleteNodeTransportSettings,
+            settings.deleteNodeOperationSettings(),
+            clientContext,
+            operationsStub);
+    this.stopNodeCallable =
+        callableFactory.createUnaryCallable(
+            stopNodeTransportSettings, settings.stopNodeSettings(), clientContext);
+    this.stopNodeOperationCallable =
+        callableFactory.createOperationCallable(
+            stopNodeTransportSettings,
+            settings.stopNodeOperationSettings(),
+            clientContext,
+            operationsStub);
+    this.startNodeCallable =
+        callableFactory.createUnaryCallable(
+            startNodeTransportSettings, settings.startNodeSettings(), clientContext);
+    this.startNodeOperationCallable =
+        callableFactory.createOperationCallable(
+            startNodeTransportSettings,
+            settings.startNodeOperationSettings(),
+            clientContext,
+            operationsStub);
+    this.updateNodeCallable =
+        callableFactory.createUnaryCallable(
+            updateNodeTransportSettings, settings.updateNodeSettings(), clientContext);
+    this.updateNodeOperationCallable =
+        callableFactory.createOperationCallable(
+            updateNodeTransportSettings,
+            settings.updateNodeOperationSettings(),
+            clientContext,
+            operationsStub);
+    this.generateServiceIdentityCallable =
+        callableFactory.createUnaryCallable(
+            generateServiceIdentityTransportSettings,
+            settings.generateServiceIdentitySettings(),
+            clientContext);
+    this.listAcceleratorTypesCallable =
+        callableFactory.createUnaryCallable(
+            listAcceleratorTypesTransportSettings,
+            settings.listAcceleratorTypesSettings(),
+            clientContext);
+    this.listAcceleratorTypesPagedCallable =
+        callableFactory.createPagedCallable(
+            listAcceleratorTypesTransportSettings,
+            settings.listAcceleratorTypesSettings(),
+            clientContext);
+    this.getAcceleratorTypeCallable =
+        callableFactory.createUnaryCallable(
+            getAcceleratorTypeTransportSettings,
+            settings.getAcceleratorTypeSettings(),
+            clientContext);
+    this.listRuntimeVersionsCallable =
+        callableFactory.createUnaryCallable(
+            listRuntimeVersionsTransportSettings,
+            settings.listRuntimeVersionsSettings(),
+            clientContext);
+    this.listRuntimeVersionsPagedCallable =
+        callableFactory.createPagedCallable(
+            listRuntimeVersionsTransportSettings,
+            settings.listRuntimeVersionsSettings(),
+            clientContext);
+    this.getRuntimeVersionCallable =
+        callableFactory.createUnaryCallable(
+            getRuntimeVersionTransportSettings,
+            settings.getRuntimeVersionSettings(),
+            clientContext);
+    this.getGuestAttributesCallable =
+        callableFactory.createUnaryCallable(
+            getGuestAttributesTransportSettings,
+            settings.getGuestAttributesSettings(),
+            clientContext);
+
+    this.backgroundResources =
+        new BackgroundResourceAggregation(clientContext.getBackgroundResources());
+  }
+
+  public GrpcOperationsStub getOperationsStub() {
+    return operationsStub;
+  }
+
+  @Override
+  public UnaryCallable<ListNodesRequest, ListNodesResponse> listNodesCallable() {
+    return listNodesCallable;
+  }
+
+  @Override
+  public UnaryCallable<ListNodesRequest, ListNodesPagedResponse> listNodesPagedCallable() {
+    return listNodesPagedCallable;
+  }
+
+  @Override
+  public UnaryCallable<GetNodeRequest, Node> getNodeCallable() {
+    return getNodeCallable;
+  }
+
+  @Override
+  public UnaryCallable<CreateNodeRequest, Operation> createNodeCallable() {
+    return createNodeCallable;
+  }
+
+  @Override
+  public OperationCallable<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationCallable() {
+    return createNodeOperationCallable;
+  }
+
+  @Override
+  public UnaryCallable<DeleteNodeRequest, Operation> deleteNodeCallable() {
+    return deleteNodeCallable;
+  }
+
+  @Override
+  public OperationCallable<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationCallable() {
+    return deleteNodeOperationCallable;
+  }
+
+  @Override
+  public UnaryCallable<StopNodeRequest, Operation> stopNodeCallable() {
+    return stopNodeCallable;
+  }
+
+  @Override
+  public OperationCallable<StopNodeRequest, Node, OperationMetadata> stopNodeOperationCallable() {
+    return stopNodeOperationCallable;
+  }
+
+  @Override
+  public UnaryCallable<StartNodeRequest, Operation> startNodeCallable() {
+    return startNodeCallable;
+  }
+
+  @Override
+  public OperationCallable<StartNodeRequest, Node, OperationMetadata> startNodeOperationCallable() {
+    return startNodeOperationCallable;
+  }
+
+  @Override
+  public UnaryCallable<UpdateNodeRequest, Operation> updateNodeCallable() {
+    return updateNodeCallable;
+  }
+
+  @Override
+  public OperationCallable<UpdateNodeRequest, Node, OperationMetadata>
+      updateNodeOperationCallable() {
+    return updateNodeOperationCallable;
+  }
+
+  @Override
+  public UnaryCallable<GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>
+      generateServiceIdentityCallable() {
+    return generateServiceIdentityCallable;
+  }
+
+  @Override
+  public UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>
+      listAcceleratorTypesCallable() {
+    return listAcceleratorTypesCallable;
+  }
+
+  @Override
+  public UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesPagedCallable() {
+    return listAcceleratorTypesPagedCallable;
+  }
+
+  @Override
+  public UnaryCallable<GetAcceleratorTypeRequest, AcceleratorType> getAcceleratorTypeCallable() {
+    return getAcceleratorTypeCallable;
+  }
+
+  @Override
+  public UnaryCallable<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse>
+      listRuntimeVersionsCallable() {
+    return listRuntimeVersionsCallable;
+  }
+
+  @Override
+  public UnaryCallable<ListRuntimeVersionsRequest, ListRuntimeVersionsPagedResponse>
+      listRuntimeVersionsPagedCallable() {
+    return listRuntimeVersionsPagedCallable;
+  }
+
+  @Override
+  public UnaryCallable<GetRuntimeVersionRequest, RuntimeVersion> getRuntimeVersionCallable() {
+    return getRuntimeVersionCallable;
+  }
+
+  @Override
+  public UnaryCallable<GetGuestAttributesRequest, GetGuestAttributesResponse>
+      getGuestAttributesCallable() {
+    return getGuestAttributesCallable;
+  }
+
+  @Override
+  public final void close() {
+    try {
+      backgroundResources.close();
+    } catch (RuntimeException e) {
+      throw e;
+    } catch (Exception e) {
+      throw new IllegalStateException("Failed to close resource", e);
+    }
+  }
+
+  @Override
+  public void shutdown() {
+    backgroundResources.shutdown();
+  }
+
+  @Override
+  public boolean isShutdown() {
+    return backgroundResources.isShutdown();
+  }
+
+  @Override
+  public boolean isTerminated() {
+    return backgroundResources.isTerminated();
+  }
+
+  @Override
+  public void shutdownNow() {
+    backgroundResources.shutdownNow();
+  }
+
+  @Override
+  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
+    return backgroundResources.awaitTermination(duration, unit);
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/stub/TpuStub.java b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/stub/TpuStub.java
new file mode 100644
index 000000000000..02185bf703a8
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/stub/TpuStub.java
@@ -0,0 +1,162 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.stub;
+
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListAcceleratorTypesPagedResponse;
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListNodesPagedResponse;
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListRuntimeVersionsPagedResponse;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.tpu.v2alpha1.AcceleratorType;
+import com.google.cloud.tpu.v2alpha1.CreateNodeRequest;
+import com.google.cloud.tpu.v2alpha1.DeleteNodeRequest;
+import com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest;
+import com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse;
+import com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest;
+import com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest;
+import com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse;
+import com.google.cloud.tpu.v2alpha1.GetNodeRequest;
+import com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest;
+import com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest;
+import com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse;
+import com.google.cloud.tpu.v2alpha1.ListNodesRequest;
+import com.google.cloud.tpu.v2alpha1.ListNodesResponse;
+import com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest;
+import com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.OperationMetadata;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersion;
+import com.google.cloud.tpu.v2alpha1.StartNodeRequest;
+import com.google.cloud.tpu.v2alpha1.StopNodeRequest;
+import com.google.cloud.tpu.v2alpha1.UpdateNodeRequest;
+import com.google.longrunning.Operation;
+import com.google.longrunning.stub.OperationsStub;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Base stub class for the Tpu service API.
+ *
+ * <p>This class is for advanced usage and reflects the underlying API directly.
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public abstract class TpuStub implements BackgroundResource {
+
+  public OperationsStub getOperationsStub() {
+    throw new UnsupportedOperationException("Not implemented: getOperationsStub()");
+  }
+
+  public UnaryCallable<ListNodesRequest, ListNodesPagedResponse> listNodesPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listNodesPagedCallable()");
+  }
+
+  public UnaryCallable<ListNodesRequest, ListNodesResponse> listNodesCallable() {
+    throw new UnsupportedOperationException("Not implemented: listNodesCallable()");
+  }
+
+  public UnaryCallable<GetNodeRequest, Node> getNodeCallable() {
+    throw new UnsupportedOperationException("Not implemented: getNodeCallable()");
+  }
+
+  public OperationCallable<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: createNodeOperationCallable()");
+  }
+
+  public UnaryCallable<CreateNodeRequest, Operation> createNodeCallable() {
+    throw new UnsupportedOperationException("Not implemented: createNodeCallable()");
+  }
+
+  public OperationCallable<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: deleteNodeOperationCallable()");
+  }
+
+  public UnaryCallable<DeleteNodeRequest, Operation> deleteNodeCallable() {
+    throw new UnsupportedOperationException("Not implemented: deleteNodeCallable()");
+  }
+
+  public OperationCallable<StopNodeRequest, Node, OperationMetadata> stopNodeOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: stopNodeOperationCallable()");
+  }
+
+  public UnaryCallable<StopNodeRequest, Operation> stopNodeCallable() {
+    throw new UnsupportedOperationException("Not implemented: stopNodeCallable()");
+  }
+
+  public OperationCallable<StartNodeRequest, Node, OperationMetadata> startNodeOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: startNodeOperationCallable()");
+  }
+
+  public UnaryCallable<StartNodeRequest, Operation> startNodeCallable() {
+    throw new UnsupportedOperationException("Not implemented: startNodeCallable()");
+  }
+
+  public OperationCallable<UpdateNodeRequest, Node, OperationMetadata>
+      updateNodeOperationCallable() {
+    throw new UnsupportedOperationException("Not implemented: updateNodeOperationCallable()");
+  }
+
+  public UnaryCallable<UpdateNodeRequest, Operation> updateNodeCallable() {
+    throw new UnsupportedOperationException("Not implemented: updateNodeCallable()");
+  }
+
+  public UnaryCallable<GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>
+      generateServiceIdentityCallable() {
+    throw new UnsupportedOperationException("Not implemented: generateServiceIdentityCallable()");
+  }
+
+  public UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listAcceleratorTypesPagedCallable()");
+  }
+
+  public UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse>
+      listAcceleratorTypesCallable() {
+    throw new UnsupportedOperationException("Not implemented: listAcceleratorTypesCallable()");
+  }
+
+  public UnaryCallable<GetAcceleratorTypeRequest, AcceleratorType> getAcceleratorTypeCallable() {
+    throw new UnsupportedOperationException("Not implemented: getAcceleratorTypeCallable()");
+  }
+
+  public UnaryCallable<ListRuntimeVersionsRequest, ListRuntimeVersionsPagedResponse>
+      listRuntimeVersionsPagedCallable() {
+    throw new UnsupportedOperationException("Not implemented: listRuntimeVersionsPagedCallable()");
+  }
+
+  public UnaryCallable<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse>
+      listRuntimeVersionsCallable() {
+    throw new UnsupportedOperationException("Not implemented: listRuntimeVersionsCallable()");
+  }
+
+  public UnaryCallable<GetRuntimeVersionRequest, RuntimeVersion> getRuntimeVersionCallable() {
+    throw new UnsupportedOperationException("Not implemented: getRuntimeVersionCallable()");
+  }
+
+  public UnaryCallable<GetGuestAttributesRequest, GetGuestAttributesResponse>
+      getGuestAttributesCallable() {
+    throw new UnsupportedOperationException("Not implemented: getGuestAttributesCallable()");
+  }
+
+  @Override
+  public abstract void close();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/stub/TpuStubSettings.java b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/stub/TpuStubSettings.java
new file mode 100644
index 000000000000..726f0fec79ac
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/main/java/com/google/cloud/tpu/v2alpha1/stub/TpuStubSettings.java
@@ -0,0 +1,1018 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.stub;
+
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListAcceleratorTypesPagedResponse;
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListNodesPagedResponse;
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListRuntimeVersionsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.ApiFuture;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GaxProperties;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.GrpcTransportChannel;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.grpc.ProtoOperationTransformers;
+import com.google.api.gax.longrunning.OperationSnapshot;
+import com.google.api.gax.longrunning.OperationTimedPollAlgorithm;
+import com.google.api.gax.retrying.RetrySettings;
+import com.google.api.gax.rpc.ApiCallContext;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.PageContext;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.PagedListDescriptor;
+import com.google.api.gax.rpc.PagedListResponseFactory;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.api.gax.rpc.StubSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.tpu.v2alpha1.AcceleratorType;
+import com.google.cloud.tpu.v2alpha1.CreateNodeRequest;
+import com.google.cloud.tpu.v2alpha1.DeleteNodeRequest;
+import com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest;
+import com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse;
+import com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest;
+import com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest;
+import com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse;
+import com.google.cloud.tpu.v2alpha1.GetNodeRequest;
+import com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest;
+import com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest;
+import com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse;
+import com.google.cloud.tpu.v2alpha1.ListNodesRequest;
+import com.google.cloud.tpu.v2alpha1.ListNodesResponse;
+import com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest;
+import com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.OperationMetadata;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersion;
+import com.google.cloud.tpu.v2alpha1.StartNodeRequest;
+import com.google.cloud.tpu.v2alpha1.StopNodeRequest;
+import com.google.cloud.tpu.v2alpha1.UpdateNodeRequest;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.longrunning.Operation;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+import org.threeten.bp.Duration;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Settings class to configure an instance of {@link TpuStub}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (tpu.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getNode to 30 seconds:
+ *
+ * <pre>{@code
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+ * TpuStubSettings.Builder tpuSettingsBuilder = TpuStubSettings.newBuilder();
+ * tpuSettingsBuilder
+ *     .getNodeSettings()
+ *     .setRetrySettings(
+ *         tpuSettingsBuilder.getNodeSettings().getRetrySettings().toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * TpuStubSettings tpuSettings = tpuSettingsBuilder.build();
+ * }</pre>
+ */
+@BetaApi
+@Generated("by gapic-generator-java")
+public class TpuStubSettings extends StubSettings<TpuStubSettings> {
+  /** The default scopes of the service. */
+  private static final ImmutableList<String> DEFAULT_SERVICE_SCOPES =
+      ImmutableList.<String>builder().add("https://www.googleapis.com/auth/cloud-platform").build();
+
+  private final PagedCallSettings<ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+      listNodesSettings;
+  private final UnaryCallSettings<GetNodeRequest, Node> getNodeSettings;
+  private final UnaryCallSettings<CreateNodeRequest, Operation> createNodeSettings;
+  private final OperationCallSettings<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationSettings;
+  private final UnaryCallSettings<DeleteNodeRequest, Operation> deleteNodeSettings;
+  private final OperationCallSettings<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationSettings;
+  private final UnaryCallSettings<StopNodeRequest, Operation> stopNodeSettings;
+  private final OperationCallSettings<StopNodeRequest, Node, OperationMetadata>
+      stopNodeOperationSettings;
+  private final UnaryCallSettings<StartNodeRequest, Operation> startNodeSettings;
+  private final OperationCallSettings<StartNodeRequest, Node, OperationMetadata>
+      startNodeOperationSettings;
+  private final UnaryCallSettings<UpdateNodeRequest, Operation> updateNodeSettings;
+  private final OperationCallSettings<UpdateNodeRequest, Node, OperationMetadata>
+      updateNodeOperationSettings;
+  private final UnaryCallSettings<GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>
+      generateServiceIdentitySettings;
+  private final PagedCallSettings<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesSettings;
+  private final UnaryCallSettings<GetAcceleratorTypeRequest, AcceleratorType>
+      getAcceleratorTypeSettings;
+  private final PagedCallSettings<
+          ListRuntimeVersionsRequest, ListRuntimeVersionsResponse, ListRuntimeVersionsPagedResponse>
+      listRuntimeVersionsSettings;
+  private final UnaryCallSettings<GetRuntimeVersionRequest, RuntimeVersion>
+      getRuntimeVersionSettings;
+  private final UnaryCallSettings<GetGuestAttributesRequest, GetGuestAttributesResponse>
+      getGuestAttributesSettings;
+
+  private static final PagedListDescriptor<ListNodesRequest, ListNodesResponse, Node>
+      LIST_NODES_PAGE_STR_DESC =
+          new PagedListDescriptor<ListNodesRequest, ListNodesResponse, Node>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListNodesRequest injectToken(ListNodesRequest payload, String token) {
+              return ListNodesRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListNodesRequest injectPageSize(ListNodesRequest payload, int pageSize) {
+              return ListNodesRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListNodesRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListNodesResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<Node> extractResources(ListNodesResponse payload) {
+              return payload.getNodesList() == null
+                  ? ImmutableList.<Node>of()
+                  : payload.getNodesList();
+            }
+          };
+
+  private static final PagedListDescriptor<
+          ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>
+      LIST_ACCELERATOR_TYPES_PAGE_STR_DESC =
+          new PagedListDescriptor<
+              ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListAcceleratorTypesRequest injectToken(
+                ListAcceleratorTypesRequest payload, String token) {
+              return ListAcceleratorTypesRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListAcceleratorTypesRequest injectPageSize(
+                ListAcceleratorTypesRequest payload, int pageSize) {
+              return ListAcceleratorTypesRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListAcceleratorTypesRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListAcceleratorTypesResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<AcceleratorType> extractResources(
+                ListAcceleratorTypesResponse payload) {
+              return payload.getAcceleratorTypesList() == null
+                  ? ImmutableList.<AcceleratorType>of()
+                  : payload.getAcceleratorTypesList();
+            }
+          };
+
+  private static final PagedListDescriptor<
+          ListRuntimeVersionsRequest, ListRuntimeVersionsResponse, RuntimeVersion>
+      LIST_RUNTIME_VERSIONS_PAGE_STR_DESC =
+          new PagedListDescriptor<
+              ListRuntimeVersionsRequest, ListRuntimeVersionsResponse, RuntimeVersion>() {
+            @Override
+            public String emptyToken() {
+              return "";
+            }
+
+            @Override
+            public ListRuntimeVersionsRequest injectToken(
+                ListRuntimeVersionsRequest payload, String token) {
+              return ListRuntimeVersionsRequest.newBuilder(payload).setPageToken(token).build();
+            }
+
+            @Override
+            public ListRuntimeVersionsRequest injectPageSize(
+                ListRuntimeVersionsRequest payload, int pageSize) {
+              return ListRuntimeVersionsRequest.newBuilder(payload).setPageSize(pageSize).build();
+            }
+
+            @Override
+            public Integer extractPageSize(ListRuntimeVersionsRequest payload) {
+              return payload.getPageSize();
+            }
+
+            @Override
+            public String extractNextToken(ListRuntimeVersionsResponse payload) {
+              return payload.getNextPageToken();
+            }
+
+            @Override
+            public Iterable<RuntimeVersion> extractResources(ListRuntimeVersionsResponse payload) {
+              return payload.getRuntimeVersionsList() == null
+                  ? ImmutableList.<RuntimeVersion>of()
+                  : payload.getRuntimeVersionsList();
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+      LIST_NODES_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>() {
+            @Override
+            public ApiFuture<ListNodesPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListNodesRequest, ListNodesResponse> callable,
+                ListNodesRequest request,
+                ApiCallContext context,
+                ApiFuture<ListNodesResponse> futureResponse) {
+              PageContext<ListNodesRequest, ListNodesResponse, Node> pageContext =
+                  PageContext.create(callable, LIST_NODES_PAGE_STR_DESC, request, context);
+              return ListNodesPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          ListAcceleratorTypesPagedResponse>
+      LIST_ACCELERATOR_TYPES_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListAcceleratorTypesRequest,
+              ListAcceleratorTypesResponse,
+              ListAcceleratorTypesPagedResponse>() {
+            @Override
+            public ApiFuture<ListAcceleratorTypesPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListAcceleratorTypesRequest, ListAcceleratorTypesResponse> callable,
+                ListAcceleratorTypesRequest request,
+                ApiCallContext context,
+                ApiFuture<ListAcceleratorTypesResponse> futureResponse) {
+              PageContext<
+                      ListAcceleratorTypesRequest, ListAcceleratorTypesResponse, AcceleratorType>
+                  pageContext =
+                      PageContext.create(
+                          callable, LIST_ACCELERATOR_TYPES_PAGE_STR_DESC, request, context);
+              return ListAcceleratorTypesPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  private static final PagedListResponseFactory<
+          ListRuntimeVersionsRequest, ListRuntimeVersionsResponse, ListRuntimeVersionsPagedResponse>
+      LIST_RUNTIME_VERSIONS_PAGE_STR_FACT =
+          new PagedListResponseFactory<
+              ListRuntimeVersionsRequest,
+              ListRuntimeVersionsResponse,
+              ListRuntimeVersionsPagedResponse>() {
+            @Override
+            public ApiFuture<ListRuntimeVersionsPagedResponse> getFuturePagedResponse(
+                UnaryCallable<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse> callable,
+                ListRuntimeVersionsRequest request,
+                ApiCallContext context,
+                ApiFuture<ListRuntimeVersionsResponse> futureResponse) {
+              PageContext<ListRuntimeVersionsRequest, ListRuntimeVersionsResponse, RuntimeVersion>
+                  pageContext =
+                      PageContext.create(
+                          callable, LIST_RUNTIME_VERSIONS_PAGE_STR_DESC, request, context);
+              return ListRuntimeVersionsPagedResponse.createAsync(pageContext, futureResponse);
+            }
+          };
+
+  /** Returns the object with the settings used for calls to listNodes. */
+  public PagedCallSettings<ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+      listNodesSettings() {
+    return listNodesSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getNode. */
+  public UnaryCallSettings<GetNodeRequest, Node> getNodeSettings() {
+    return getNodeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createNode. */
+  public UnaryCallSettings<CreateNodeRequest, Operation> createNodeSettings() {
+    return createNodeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to createNode. */
+  public OperationCallSettings<CreateNodeRequest, Node, OperationMetadata>
+      createNodeOperationSettings() {
+    return createNodeOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteNode. */
+  public UnaryCallSettings<DeleteNodeRequest, Operation> deleteNodeSettings() {
+    return deleteNodeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to deleteNode. */
+  public OperationCallSettings<DeleteNodeRequest, Node, OperationMetadata>
+      deleteNodeOperationSettings() {
+    return deleteNodeOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to stopNode. */
+  public UnaryCallSettings<StopNodeRequest, Operation> stopNodeSettings() {
+    return stopNodeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to stopNode. */
+  public OperationCallSettings<StopNodeRequest, Node, OperationMetadata>
+      stopNodeOperationSettings() {
+    return stopNodeOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to startNode. */
+  public UnaryCallSettings<StartNodeRequest, Operation> startNodeSettings() {
+    return startNodeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to startNode. */
+  public OperationCallSettings<StartNodeRequest, Node, OperationMetadata>
+      startNodeOperationSettings() {
+    return startNodeOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateNode. */
+  public UnaryCallSettings<UpdateNodeRequest, Operation> updateNodeSettings() {
+    return updateNodeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to updateNode. */
+  public OperationCallSettings<UpdateNodeRequest, Node, OperationMetadata>
+      updateNodeOperationSettings() {
+    return updateNodeOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to generateServiceIdentity. */
+  public UnaryCallSettings<GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>
+      generateServiceIdentitySettings() {
+    return generateServiceIdentitySettings;
+  }
+
+  /** Returns the object with the settings used for calls to listAcceleratorTypes. */
+  public PagedCallSettings<
+          ListAcceleratorTypesRequest,
+          ListAcceleratorTypesResponse,
+          ListAcceleratorTypesPagedResponse>
+      listAcceleratorTypesSettings() {
+    return listAcceleratorTypesSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getAcceleratorType. */
+  public UnaryCallSettings<GetAcceleratorTypeRequest, AcceleratorType>
+      getAcceleratorTypeSettings() {
+    return getAcceleratorTypeSettings;
+  }
+
+  /** Returns the object with the settings used for calls to listRuntimeVersions. */
+  public PagedCallSettings<
+          ListRuntimeVersionsRequest, ListRuntimeVersionsResponse, ListRuntimeVersionsPagedResponse>
+      listRuntimeVersionsSettings() {
+    return listRuntimeVersionsSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getRuntimeVersion. */
+  public UnaryCallSettings<GetRuntimeVersionRequest, RuntimeVersion> getRuntimeVersionSettings() {
+    return getRuntimeVersionSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getGuestAttributes. */
+  public UnaryCallSettings<GetGuestAttributesRequest, GetGuestAttributesResponse>
+      getGuestAttributesSettings() {
+    return getGuestAttributesSettings;
+  }
+
+  public TpuStub createStub() throws IOException {
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(GrpcTransportChannel.getGrpcTransportName())) {
+      return GrpcTpuStub.create(this);
+    }
+    throw new UnsupportedOperationException(
+        String.format(
+            "Transport not supported: %s", getTransportChannelProvider().getTransportName()));
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return InstantiatingExecutorProvider.newBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return "tpu.googleapis.com:443";
+  }
+
+  /** Returns the default mTLS service endpoint. */
+  public static String getDefaultMtlsEndpoint() {
+    return "tpu.mtls.googleapis.com:443";
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return DEFAULT_SERVICE_SCOPES;
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return GoogleCredentialsProvider.newBuilder()
+        .setScopesToApply(DEFAULT_SERVICE_SCOPES)
+        .setUseJwtAccessWithScope(true);
+  }
+
+  /** Returns a builder for the default ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return InstantiatingGrpcChannelProvider.newBuilder()
+        .setMaxInboundMessageSize(Integer.MAX_VALUE);
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return defaultGrpcTransportProviderBuilder().build();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken("gapic", GaxProperties.getLibraryVersion(TpuStubSettings.class))
+        .setTransportToken(
+            GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected TpuStubSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+
+    listNodesSettings = settingsBuilder.listNodesSettings().build();
+    getNodeSettings = settingsBuilder.getNodeSettings().build();
+    createNodeSettings = settingsBuilder.createNodeSettings().build();
+    createNodeOperationSettings = settingsBuilder.createNodeOperationSettings().build();
+    deleteNodeSettings = settingsBuilder.deleteNodeSettings().build();
+    deleteNodeOperationSettings = settingsBuilder.deleteNodeOperationSettings().build();
+    stopNodeSettings = settingsBuilder.stopNodeSettings().build();
+    stopNodeOperationSettings = settingsBuilder.stopNodeOperationSettings().build();
+    startNodeSettings = settingsBuilder.startNodeSettings().build();
+    startNodeOperationSettings = settingsBuilder.startNodeOperationSettings().build();
+    updateNodeSettings = settingsBuilder.updateNodeSettings().build();
+    updateNodeOperationSettings = settingsBuilder.updateNodeOperationSettings().build();
+    generateServiceIdentitySettings = settingsBuilder.generateServiceIdentitySettings().build();
+    listAcceleratorTypesSettings = settingsBuilder.listAcceleratorTypesSettings().build();
+    getAcceleratorTypeSettings = settingsBuilder.getAcceleratorTypeSettings().build();
+    listRuntimeVersionsSettings = settingsBuilder.listRuntimeVersionsSettings().build();
+    getRuntimeVersionSettings = settingsBuilder.getRuntimeVersionSettings().build();
+    getGuestAttributesSettings = settingsBuilder.getGuestAttributesSettings().build();
+  }
+
+  /** Builder for TpuStubSettings. */
+  public static class Builder extends StubSettings.Builder<TpuStubSettings, Builder> {
+    private final ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders;
+    private final PagedCallSettings.Builder<
+            ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+        listNodesSettings;
+    private final UnaryCallSettings.Builder<GetNodeRequest, Node> getNodeSettings;
+    private final UnaryCallSettings.Builder<CreateNodeRequest, Operation> createNodeSettings;
+    private final OperationCallSettings.Builder<CreateNodeRequest, Node, OperationMetadata>
+        createNodeOperationSettings;
+    private final UnaryCallSettings.Builder<DeleteNodeRequest, Operation> deleteNodeSettings;
+    private final OperationCallSettings.Builder<DeleteNodeRequest, Node, OperationMetadata>
+        deleteNodeOperationSettings;
+    private final UnaryCallSettings.Builder<StopNodeRequest, Operation> stopNodeSettings;
+    private final OperationCallSettings.Builder<StopNodeRequest, Node, OperationMetadata>
+        stopNodeOperationSettings;
+    private final UnaryCallSettings.Builder<StartNodeRequest, Operation> startNodeSettings;
+    private final OperationCallSettings.Builder<StartNodeRequest, Node, OperationMetadata>
+        startNodeOperationSettings;
+    private final UnaryCallSettings.Builder<UpdateNodeRequest, Operation> updateNodeSettings;
+    private final OperationCallSettings.Builder<UpdateNodeRequest, Node, OperationMetadata>
+        updateNodeOperationSettings;
+    private final UnaryCallSettings.Builder<
+            GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>
+        generateServiceIdentitySettings;
+    private final PagedCallSettings.Builder<
+            ListAcceleratorTypesRequest,
+            ListAcceleratorTypesResponse,
+            ListAcceleratorTypesPagedResponse>
+        listAcceleratorTypesSettings;
+    private final UnaryCallSettings.Builder<GetAcceleratorTypeRequest, AcceleratorType>
+        getAcceleratorTypeSettings;
+    private final PagedCallSettings.Builder<
+            ListRuntimeVersionsRequest,
+            ListRuntimeVersionsResponse,
+            ListRuntimeVersionsPagedResponse>
+        listRuntimeVersionsSettings;
+    private final UnaryCallSettings.Builder<GetRuntimeVersionRequest, RuntimeVersion>
+        getRuntimeVersionSettings;
+    private final UnaryCallSettings.Builder<GetGuestAttributesRequest, GetGuestAttributesResponse>
+        getGuestAttributesSettings;
+    private static final ImmutableMap<String, ImmutableSet<StatusCode.Code>>
+        RETRYABLE_CODE_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, ImmutableSet<StatusCode.Code>> definitions =
+          ImmutableMap.builder();
+      definitions.put(
+          "no_retry_0_codes", ImmutableSet.copyOf(Lists.<StatusCode.Code>newArrayList()));
+      RETRYABLE_CODE_DEFINITIONS = definitions.build();
+    }
+
+    private static final ImmutableMap<String, RetrySettings> RETRY_PARAM_DEFINITIONS;
+
+    static {
+      ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();
+      RetrySettings settings = null;
+      settings =
+          RetrySettings.newBuilder()
+              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setRpcTimeoutMultiplier(1.0)
+              .setMaxRpcTimeout(Duration.ofMillis(60000L))
+              .setTotalTimeout(Duration.ofMillis(60000L))
+              .build();
+      definitions.put("no_retry_0_params", settings);
+      RETRY_PARAM_DEFINITIONS = definitions.build();
+    }
+
+    protected Builder() {
+      this(((ClientContext) null));
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(clientContext);
+
+      listNodesSettings = PagedCallSettings.newBuilder(LIST_NODES_PAGE_STR_FACT);
+      getNodeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      createNodeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      createNodeOperationSettings = OperationCallSettings.newBuilder();
+      deleteNodeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      deleteNodeOperationSettings = OperationCallSettings.newBuilder();
+      stopNodeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      stopNodeOperationSettings = OperationCallSettings.newBuilder();
+      startNodeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      startNodeOperationSettings = OperationCallSettings.newBuilder();
+      updateNodeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      updateNodeOperationSettings = OperationCallSettings.newBuilder();
+      generateServiceIdentitySettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      listAcceleratorTypesSettings =
+          PagedCallSettings.newBuilder(LIST_ACCELERATOR_TYPES_PAGE_STR_FACT);
+      getAcceleratorTypeSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      listRuntimeVersionsSettings =
+          PagedCallSettings.newBuilder(LIST_RUNTIME_VERSIONS_PAGE_STR_FACT);
+      getRuntimeVersionSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      getGuestAttributesSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listNodesSettings,
+              getNodeSettings,
+              createNodeSettings,
+              deleteNodeSettings,
+              stopNodeSettings,
+              startNodeSettings,
+              updateNodeSettings,
+              generateServiceIdentitySettings,
+              listAcceleratorTypesSettings,
+              getAcceleratorTypeSettings,
+              listRuntimeVersionsSettings,
+              getRuntimeVersionSettings,
+              getGuestAttributesSettings);
+      initDefaults(this);
+    }
+
+    protected Builder(TpuStubSettings settings) {
+      super(settings);
+
+      listNodesSettings = settings.listNodesSettings.toBuilder();
+      getNodeSettings = settings.getNodeSettings.toBuilder();
+      createNodeSettings = settings.createNodeSettings.toBuilder();
+      createNodeOperationSettings = settings.createNodeOperationSettings.toBuilder();
+      deleteNodeSettings = settings.deleteNodeSettings.toBuilder();
+      deleteNodeOperationSettings = settings.deleteNodeOperationSettings.toBuilder();
+      stopNodeSettings = settings.stopNodeSettings.toBuilder();
+      stopNodeOperationSettings = settings.stopNodeOperationSettings.toBuilder();
+      startNodeSettings = settings.startNodeSettings.toBuilder();
+      startNodeOperationSettings = settings.startNodeOperationSettings.toBuilder();
+      updateNodeSettings = settings.updateNodeSettings.toBuilder();
+      updateNodeOperationSettings = settings.updateNodeOperationSettings.toBuilder();
+      generateServiceIdentitySettings = settings.generateServiceIdentitySettings.toBuilder();
+      listAcceleratorTypesSettings = settings.listAcceleratorTypesSettings.toBuilder();
+      getAcceleratorTypeSettings = settings.getAcceleratorTypeSettings.toBuilder();
+      listRuntimeVersionsSettings = settings.listRuntimeVersionsSettings.toBuilder();
+      getRuntimeVersionSettings = settings.getRuntimeVersionSettings.toBuilder();
+      getGuestAttributesSettings = settings.getGuestAttributesSettings.toBuilder();
+
+      unaryMethodSettingsBuilders =
+          ImmutableList.<UnaryCallSettings.Builder<?, ?>>of(
+              listNodesSettings,
+              getNodeSettings,
+              createNodeSettings,
+              deleteNodeSettings,
+              stopNodeSettings,
+              startNodeSettings,
+              updateNodeSettings,
+              generateServiceIdentitySettings,
+              listAcceleratorTypesSettings,
+              getAcceleratorTypeSettings,
+              listRuntimeVersionsSettings,
+              getRuntimeVersionSettings,
+              getGuestAttributesSettings);
+    }
+
+    private static Builder createDefault() {
+      Builder builder = new Builder(((ClientContext) null));
+
+      builder.setTransportChannelProvider(defaultTransportChannelProvider());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      builder.setMtlsEndpoint(getDefaultMtlsEndpoint());
+      builder.setSwitchToMtlsEndpointAllowed(true);
+
+      return initDefaults(builder);
+    }
+
+    private static Builder initDefaults(Builder builder) {
+      builder
+          .listNodesSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .getNodeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .createNodeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .deleteNodeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .stopNodeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .startNodeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .updateNodeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .generateServiceIdentitySettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .listAcceleratorTypesSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .getAcceleratorTypeSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .listRuntimeVersionsSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .getRuntimeVersionSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .getGuestAttributesSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"));
+
+      builder
+          .createNodeOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings.<CreateNodeRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"))
+                  .build())
+          .setResponseTransformer(ProtoOperationTransformers.ResponseTransformer.create(Node.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(OperationMetadata.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(5000L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(45000L))
+                      .setInitialRpcTimeout(Duration.ZERO)
+                      .setRpcTimeoutMultiplier(1.0)
+                      .setMaxRpcTimeout(Duration.ZERO)
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      builder
+          .deleteNodeOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings.<DeleteNodeRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"))
+                  .build())
+          .setResponseTransformer(ProtoOperationTransformers.ResponseTransformer.create(Node.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(OperationMetadata.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(5000L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(45000L))
+                      .setInitialRpcTimeout(Duration.ZERO)
+                      .setRpcTimeoutMultiplier(1.0)
+                      .setMaxRpcTimeout(Duration.ZERO)
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      builder
+          .stopNodeOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings.<StopNodeRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"))
+                  .build())
+          .setResponseTransformer(ProtoOperationTransformers.ResponseTransformer.create(Node.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(OperationMetadata.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(5000L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(45000L))
+                      .setInitialRpcTimeout(Duration.ZERO)
+                      .setRpcTimeoutMultiplier(1.0)
+                      .setMaxRpcTimeout(Duration.ZERO)
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      builder
+          .startNodeOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings.<StartNodeRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"))
+                  .build())
+          .setResponseTransformer(ProtoOperationTransformers.ResponseTransformer.create(Node.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(OperationMetadata.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(5000L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(45000L))
+                      .setInitialRpcTimeout(Duration.ZERO)
+                      .setRpcTimeoutMultiplier(1.0)
+                      .setMaxRpcTimeout(Duration.ZERO)
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      builder
+          .updateNodeOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings.<UpdateNodeRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_0_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_0_params"))
+                  .build())
+          .setResponseTransformer(ProtoOperationTransformers.ResponseTransformer.create(Node.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(OperationMetadata.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(5000L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(45000L))
+                      .setInitialRpcTimeout(Duration.ZERO)
+                      .setRpcTimeoutMultiplier(1.0)
+                      .setMaxRpcTimeout(Duration.ZERO)
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      return builder;
+    }
+
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) {
+      super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
+      return this;
+    }
+
+    public ImmutableList<UnaryCallSettings.Builder<?, ?>> unaryMethodSettingsBuilders() {
+      return unaryMethodSettingsBuilders;
+    }
+
+    /** Returns the builder for the settings used for calls to listNodes. */
+    public PagedCallSettings.Builder<ListNodesRequest, ListNodesResponse, ListNodesPagedResponse>
+        listNodesSettings() {
+      return listNodesSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getNode. */
+    public UnaryCallSettings.Builder<GetNodeRequest, Node> getNodeSettings() {
+      return getNodeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createNode. */
+    public UnaryCallSettings.Builder<CreateNodeRequest, Operation> createNodeSettings() {
+      return createNodeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to createNode. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<CreateNodeRequest, Node, OperationMetadata>
+        createNodeOperationSettings() {
+      return createNodeOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteNode. */
+    public UnaryCallSettings.Builder<DeleteNodeRequest, Operation> deleteNodeSettings() {
+      return deleteNodeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to deleteNode. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<DeleteNodeRequest, Node, OperationMetadata>
+        deleteNodeOperationSettings() {
+      return deleteNodeOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to stopNode. */
+    public UnaryCallSettings.Builder<StopNodeRequest, Operation> stopNodeSettings() {
+      return stopNodeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to stopNode. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<StopNodeRequest, Node, OperationMetadata>
+        stopNodeOperationSettings() {
+      return stopNodeOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to startNode. */
+    public UnaryCallSettings.Builder<StartNodeRequest, Operation> startNodeSettings() {
+      return startNodeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to startNode. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<StartNodeRequest, Node, OperationMetadata>
+        startNodeOperationSettings() {
+      return startNodeOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateNode. */
+    public UnaryCallSettings.Builder<UpdateNodeRequest, Operation> updateNodeSettings() {
+      return updateNodeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to updateNode. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<UpdateNodeRequest, Node, OperationMetadata>
+        updateNodeOperationSettings() {
+      return updateNodeOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to generateServiceIdentity. */
+    public UnaryCallSettings.Builder<
+            GenerateServiceIdentityRequest, GenerateServiceIdentityResponse>
+        generateServiceIdentitySettings() {
+      return generateServiceIdentitySettings;
+    }
+
+    /** Returns the builder for the settings used for calls to listAcceleratorTypes. */
+    public PagedCallSettings.Builder<
+            ListAcceleratorTypesRequest,
+            ListAcceleratorTypesResponse,
+            ListAcceleratorTypesPagedResponse>
+        listAcceleratorTypesSettings() {
+      return listAcceleratorTypesSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getAcceleratorType. */
+    public UnaryCallSettings.Builder<GetAcceleratorTypeRequest, AcceleratorType>
+        getAcceleratorTypeSettings() {
+      return getAcceleratorTypeSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to listRuntimeVersions. */
+    public PagedCallSettings.Builder<
+            ListRuntimeVersionsRequest,
+            ListRuntimeVersionsResponse,
+            ListRuntimeVersionsPagedResponse>
+        listRuntimeVersionsSettings() {
+      return listRuntimeVersionsSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getRuntimeVersion. */
+    public UnaryCallSettings.Builder<GetRuntimeVersionRequest, RuntimeVersion>
+        getRuntimeVersionSettings() {
+      return getRuntimeVersionSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getGuestAttributes. */
+    public UnaryCallSettings.Builder<GetGuestAttributesRequest, GetGuestAttributesResponse>
+        getGuestAttributesSettings() {
+      return getGuestAttributesSettings;
+    }
+
+    @Override
+    public TpuStubSettings build() throws IOException {
+      return new TpuStubSettings(this);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v2alpha1/MockTpu.java b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v2alpha1/MockTpu.java
new file mode 100644
index 000000000000..d680ccbb8959
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v2alpha1/MockTpu.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+import javax.annotation.Generated;
+
+@BetaApi
+@Generated("by gapic-generator-java")
+public class MockTpu implements MockGrpcService {
+  private final MockTpuImpl serviceImpl;
+
+  public MockTpu() {
+    serviceImpl = new MockTpuImpl();
+  }
+
+  @Override
+  public List<AbstractMessage> getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v2alpha1/MockTpuImpl.java b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v2alpha1/MockTpuImpl.java
new file mode 100644
index 000000000000..54096f705d73
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v2alpha1/MockTpuImpl.java
@@ -0,0 +1,332 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.tpu.v2alpha1.TpuGrpc.TpuImplBase;
+import com.google.longrunning.Operation;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+import javax.annotation.Generated;
+
+@BetaApi
+@Generated("by gapic-generator-java")
+public class MockTpuImpl extends TpuImplBase {
+  private List<AbstractMessage> requests;
+  private Queue<Object> responses;
+
+  public MockTpuImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List<AbstractMessage> getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List<AbstractMessage> responses) {
+    this.responses = new LinkedList<Object>(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void listNodes(
+      ListNodesRequest request, StreamObserver<ListNodesResponse> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof ListNodesResponse) {
+      requests.add(request);
+      responseObserver.onNext(((ListNodesResponse) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method ListNodes, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  ListNodesResponse.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void getNode(GetNodeRequest request, StreamObserver<Node> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Node) {
+      requests.add(request);
+      responseObserver.onNext(((Node) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GetNode, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Node.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void createNode(CreateNodeRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext(((Operation) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method CreateNode, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Operation.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void deleteNode(DeleteNodeRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext(((Operation) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method DeleteNode, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Operation.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void stopNode(StopNodeRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext(((Operation) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method StopNode, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Operation.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void startNode(StartNodeRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext(((Operation) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method StartNode, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Operation.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void updateNode(UpdateNodeRequest request, StreamObserver<Operation> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext(((Operation) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method UpdateNode, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Operation.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void generateServiceIdentity(
+      GenerateServiceIdentityRequest request,
+      StreamObserver<GenerateServiceIdentityResponse> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof GenerateServiceIdentityResponse) {
+      requests.add(request);
+      responseObserver.onNext(((GenerateServiceIdentityResponse) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GenerateServiceIdentity, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  GenerateServiceIdentityResponse.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void listAcceleratorTypes(
+      ListAcceleratorTypesRequest request,
+      StreamObserver<ListAcceleratorTypesResponse> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof ListAcceleratorTypesResponse) {
+      requests.add(request);
+      responseObserver.onNext(((ListAcceleratorTypesResponse) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method ListAcceleratorTypes, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  ListAcceleratorTypesResponse.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void getAcceleratorType(
+      GetAcceleratorTypeRequest request, StreamObserver<AcceleratorType> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof AcceleratorType) {
+      requests.add(request);
+      responseObserver.onNext(((AcceleratorType) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GetAcceleratorType, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  AcceleratorType.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void listRuntimeVersions(
+      ListRuntimeVersionsRequest request,
+      StreamObserver<ListRuntimeVersionsResponse> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof ListRuntimeVersionsResponse) {
+      requests.add(request);
+      responseObserver.onNext(((ListRuntimeVersionsResponse) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method ListRuntimeVersions, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  ListRuntimeVersionsResponse.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void getRuntimeVersion(
+      GetRuntimeVersionRequest request, StreamObserver<RuntimeVersion> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof RuntimeVersion) {
+      requests.add(request);
+      responseObserver.onNext(((RuntimeVersion) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GetRuntimeVersion, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  RuntimeVersion.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void getGuestAttributes(
+      GetGuestAttributesRequest request,
+      StreamObserver<GetGuestAttributesResponse> responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof GetGuestAttributesResponse) {
+      requests.add(request);
+      responseObserver.onNext(((GetGuestAttributesResponse) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GetGuestAttributes, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  GetGuestAttributesResponse.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v2alpha1/TpuClientTest.java b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v2alpha1/TpuClientTest.java
new file mode 100644
index 000000000000..79115b13271b
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/google-cloud-tpu/src/test/java/com/google/cloud/tpu/v2alpha1/TpuClientTest.java
@@ -0,0 +1,1184 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1;
+
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListAcceleratorTypesPagedResponse;
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListNodesPagedResponse;
+import static com.google.cloud.tpu.v2alpha1.TpuClient.ListRuntimeVersionsPagedResponse;
+
+import com.google.api.gax.core.NoCredentialsProvider;
+import com.google.api.gax.grpc.GaxGrpcProperties;
+import com.google.api.gax.grpc.testing.LocalChannelProvider;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.api.gax.grpc.testing.MockServiceHelper;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.api.gax.rpc.StatusCode;
+import com.google.common.collect.Lists;
+import com.google.longrunning.Operation;
+import com.google.protobuf.AbstractMessage;
+import com.google.protobuf.Any;
+import com.google.protobuf.FieldMask;
+import com.google.protobuf.Timestamp;
+import io.grpc.StatusRuntimeException;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import javax.annotation.Generated;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+@Generated("by gapic-generator-java")
+public class TpuClientTest {
+  private static MockServiceHelper mockServiceHelper;
+  private static MockTpu mockTpu;
+  private LocalChannelProvider channelProvider;
+  private TpuClient client;
+
+  @BeforeClass
+  public static void startStaticServer() {
+    mockTpu = new MockTpu();
+    mockServiceHelper =
+        new MockServiceHelper(
+            UUID.randomUUID().toString(), Arrays.<MockGrpcService>asList(mockTpu));
+    mockServiceHelper.start();
+  }
+
+  @AfterClass
+  public static void stopServer() {
+    mockServiceHelper.stop();
+  }
+
+  @Before
+  public void setUp() throws IOException {
+    mockServiceHelper.reset();
+    channelProvider = mockServiceHelper.createChannelProvider();
+    TpuSettings settings =
+        TpuSettings.newBuilder()
+            .setTransportChannelProvider(channelProvider)
+            .setCredentialsProvider(NoCredentialsProvider.create())
+            .build();
+    client = TpuClient.create(settings);
+  }
+
+  @After
+  public void tearDown() throws Exception {
+    client.close();
+  }
+
+  @Test
+  public void listNodesTest() throws Exception {
+    Node responsesElement = Node.newBuilder().build();
+    ListNodesResponse expectedResponse =
+        ListNodesResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllNodes(Arrays.asList(responsesElement))
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    NodeName parent = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+
+    ListNodesPagedResponse pagedListResponse = client.listNodes(parent);
+
+    List<Node> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getNodesList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListNodesRequest actualRequest = ((ListNodesRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent.toString(), actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listNodesExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      NodeName parent = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+      client.listNodes(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void listNodesTest2() throws Exception {
+    Node responsesElement = Node.newBuilder().build();
+    ListNodesResponse expectedResponse =
+        ListNodesResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllNodes(Arrays.asList(responsesElement))
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    String parent = "parent-995424086";
+
+    ListNodesPagedResponse pagedListResponse = client.listNodes(parent);
+
+    List<Node> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getNodesList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListNodesRequest actualRequest = ((ListNodesRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent, actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listNodesExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String parent = "parent-995424086";
+      client.listNodes(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getNodeTest() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setHealthDescription("healthDescription1231837184")
+            .setRuntimeVersion("runtimeVersion602071520")
+            .setNetworkConfig(NetworkConfig.newBuilder().build())
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount(ServiceAccount.newBuilder().build())
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .putAllMetadata(new HashMap<String, String>())
+            .addAllTags(new ArrayList<String>())
+            .setId(3355)
+            .addAllDataDisks(new ArrayList<AttachedDisk>())
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .setShieldedInstanceConfig(ShieldedInstanceConfig.newBuilder().build())
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+
+    Node actualResponse = client.getNode(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetNodeRequest actualRequest = ((GetNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name.toString(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getNodeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+      client.getNode(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getNodeTest2() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setHealthDescription("healthDescription1231837184")
+            .setRuntimeVersion("runtimeVersion602071520")
+            .setNetworkConfig(NetworkConfig.newBuilder().build())
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount(ServiceAccount.newBuilder().build())
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .putAllMetadata(new HashMap<String, String>())
+            .addAllTags(new ArrayList<String>())
+            .setId(3355)
+            .addAllDataDisks(new ArrayList<AttachedDisk>())
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .setShieldedInstanceConfig(ShieldedInstanceConfig.newBuilder().build())
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    String name = "name3373707";
+
+    Node actualResponse = client.getNode(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetNodeRequest actualRequest = ((GetNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name, actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getNodeExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String name = "name3373707";
+      client.getNode(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void createNodeTest() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setHealthDescription("healthDescription1231837184")
+            .setRuntimeVersion("runtimeVersion602071520")
+            .setNetworkConfig(NetworkConfig.newBuilder().build())
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount(ServiceAccount.newBuilder().build())
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .putAllMetadata(new HashMap<String, String>())
+            .addAllTags(new ArrayList<String>())
+            .setId(3355)
+            .addAllDataDisks(new ArrayList<AttachedDisk>())
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .setShieldedInstanceConfig(ShieldedInstanceConfig.newBuilder().build())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("createNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+    Node node = Node.newBuilder().build();
+    String nodeId = "nodeId-1040171331";
+
+    Node actualResponse = client.createNodeAsync(parent, node, nodeId).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateNodeRequest actualRequest = ((CreateNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent.toString(), actualRequest.getParent());
+    Assert.assertEquals(node, actualRequest.getNode());
+    Assert.assertEquals(nodeId, actualRequest.getNodeId());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void createNodeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+      Node node = Node.newBuilder().build();
+      String nodeId = "nodeId-1040171331";
+      client.createNodeAsync(parent, node, nodeId).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void createNodeTest2() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setHealthDescription("healthDescription1231837184")
+            .setRuntimeVersion("runtimeVersion602071520")
+            .setNetworkConfig(NetworkConfig.newBuilder().build())
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount(ServiceAccount.newBuilder().build())
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .putAllMetadata(new HashMap<String, String>())
+            .addAllTags(new ArrayList<String>())
+            .setId(3355)
+            .addAllDataDisks(new ArrayList<AttachedDisk>())
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .setShieldedInstanceConfig(ShieldedInstanceConfig.newBuilder().build())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("createNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    String parent = "parent-995424086";
+    Node node = Node.newBuilder().build();
+    String nodeId = "nodeId-1040171331";
+
+    Node actualResponse = client.createNodeAsync(parent, node, nodeId).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    CreateNodeRequest actualRequest = ((CreateNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent, actualRequest.getParent());
+    Assert.assertEquals(node, actualRequest.getNode());
+    Assert.assertEquals(nodeId, actualRequest.getNodeId());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void createNodeExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String parent = "parent-995424086";
+      Node node = Node.newBuilder().build();
+      String nodeId = "nodeId-1040171331";
+      client.createNodeAsync(parent, node, nodeId).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void deleteNodeTest() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setHealthDescription("healthDescription1231837184")
+            .setRuntimeVersion("runtimeVersion602071520")
+            .setNetworkConfig(NetworkConfig.newBuilder().build())
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount(ServiceAccount.newBuilder().build())
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .putAllMetadata(new HashMap<String, String>())
+            .addAllTags(new ArrayList<String>())
+            .setId(3355)
+            .addAllDataDisks(new ArrayList<AttachedDisk>())
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .setShieldedInstanceConfig(ShieldedInstanceConfig.newBuilder().build())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("deleteNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+
+    Node actualResponse = client.deleteNodeAsync(name).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteNodeRequest actualRequest = ((DeleteNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name.toString(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void deleteNodeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+      client.deleteNodeAsync(name).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void deleteNodeTest2() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setHealthDescription("healthDescription1231837184")
+            .setRuntimeVersion("runtimeVersion602071520")
+            .setNetworkConfig(NetworkConfig.newBuilder().build())
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount(ServiceAccount.newBuilder().build())
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .putAllMetadata(new HashMap<String, String>())
+            .addAllTags(new ArrayList<String>())
+            .setId(3355)
+            .addAllDataDisks(new ArrayList<AttachedDisk>())
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .setShieldedInstanceConfig(ShieldedInstanceConfig.newBuilder().build())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("deleteNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    String name = "name3373707";
+
+    Node actualResponse = client.deleteNodeAsync(name).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    DeleteNodeRequest actualRequest = ((DeleteNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name, actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void deleteNodeExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String name = "name3373707";
+      client.deleteNodeAsync(name).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void stopNodeTest() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setHealthDescription("healthDescription1231837184")
+            .setRuntimeVersion("runtimeVersion602071520")
+            .setNetworkConfig(NetworkConfig.newBuilder().build())
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount(ServiceAccount.newBuilder().build())
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .putAllMetadata(new HashMap<String, String>())
+            .addAllTags(new ArrayList<String>())
+            .setId(3355)
+            .addAllDataDisks(new ArrayList<AttachedDisk>())
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .setShieldedInstanceConfig(ShieldedInstanceConfig.newBuilder().build())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("stopNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+
+    Node actualResponse = client.stopNodeAsync(request).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    StopNodeRequest actualRequest = ((StopNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getName(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void stopNodeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+      client.stopNodeAsync(request).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void startNodeTest() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setHealthDescription("healthDescription1231837184")
+            .setRuntimeVersion("runtimeVersion602071520")
+            .setNetworkConfig(NetworkConfig.newBuilder().build())
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount(ServiceAccount.newBuilder().build())
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .putAllMetadata(new HashMap<String, String>())
+            .addAllTags(new ArrayList<String>())
+            .setId(3355)
+            .addAllDataDisks(new ArrayList<AttachedDisk>())
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .setShieldedInstanceConfig(ShieldedInstanceConfig.newBuilder().build())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("startNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+
+    Node actualResponse = client.startNodeAsync(request).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    StartNodeRequest actualRequest = ((StartNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getName(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void startNodeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+      client.startNodeAsync(request).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void updateNodeTest() throws Exception {
+    Node expectedResponse =
+        Node.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setDescription("description-1724546052")
+            .setAcceleratorType("acceleratorType-82462651")
+            .setHealthDescription("healthDescription1231837184")
+            .setRuntimeVersion("runtimeVersion602071520")
+            .setNetworkConfig(NetworkConfig.newBuilder().build())
+            .setCidrBlock("cidrBlock1646183801")
+            .setServiceAccount(ServiceAccount.newBuilder().build())
+            .setCreateTime(Timestamp.newBuilder().build())
+            .setSchedulingConfig(SchedulingConfig.newBuilder().build())
+            .addAllNetworkEndpoints(new ArrayList<NetworkEndpoint>())
+            .putAllLabels(new HashMap<String, String>())
+            .putAllMetadata(new HashMap<String, String>())
+            .addAllTags(new ArrayList<String>())
+            .setId(3355)
+            .addAllDataDisks(new ArrayList<AttachedDisk>())
+            .addAllSymptoms(new ArrayList<Symptom>())
+            .setShieldedInstanceConfig(ShieldedInstanceConfig.newBuilder().build())
+            .build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("updateNodeTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockTpu.addResponse(resultOperation);
+
+    Node node = Node.newBuilder().build();
+    FieldMask updateMask = FieldMask.newBuilder().build();
+
+    Node actualResponse = client.updateNodeAsync(node, updateMask).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    UpdateNodeRequest actualRequest = ((UpdateNodeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(node, actualRequest.getNode());
+    Assert.assertEquals(updateMask, actualRequest.getUpdateMask());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void updateNodeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      Node node = Node.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+      client.updateNodeAsync(node, updateMask).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void generateServiceIdentityTest() throws Exception {
+    GenerateServiceIdentityResponse expectedResponse =
+        GenerateServiceIdentityResponse.newBuilder()
+            .setIdentity(ServiceIdentity.newBuilder().build())
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    GenerateServiceIdentityRequest request =
+        GenerateServiceIdentityRequest.newBuilder()
+            .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+            .build();
+
+    GenerateServiceIdentityResponse actualResponse = client.generateServiceIdentity(request);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GenerateServiceIdentityRequest actualRequest =
+        ((GenerateServiceIdentityRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getParent(), actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void generateServiceIdentityExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      GenerateServiceIdentityRequest request =
+          GenerateServiceIdentityRequest.newBuilder()
+              .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+              .build();
+      client.generateServiceIdentity(request);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void listAcceleratorTypesTest() throws Exception {
+    AcceleratorType responsesElement = AcceleratorType.newBuilder().build();
+    ListAcceleratorTypesResponse expectedResponse =
+        ListAcceleratorTypesResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllAcceleratorTypes(Arrays.asList(responsesElement))
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    AcceleratorTypeName parent =
+        AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+
+    ListAcceleratorTypesPagedResponse pagedListResponse = client.listAcceleratorTypes(parent);
+
+    List<AcceleratorType> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getAcceleratorTypesList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListAcceleratorTypesRequest actualRequest =
+        ((ListAcceleratorTypesRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent.toString(), actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listAcceleratorTypesExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      AcceleratorTypeName parent =
+          AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+      client.listAcceleratorTypes(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void listAcceleratorTypesTest2() throws Exception {
+    AcceleratorType responsesElement = AcceleratorType.newBuilder().build();
+    ListAcceleratorTypesResponse expectedResponse =
+        ListAcceleratorTypesResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllAcceleratorTypes(Arrays.asList(responsesElement))
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    String parent = "parent-995424086";
+
+    ListAcceleratorTypesPagedResponse pagedListResponse = client.listAcceleratorTypes(parent);
+
+    List<AcceleratorType> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getAcceleratorTypesList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListAcceleratorTypesRequest actualRequest =
+        ((ListAcceleratorTypesRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent, actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listAcceleratorTypesExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String parent = "parent-995424086";
+      client.listAcceleratorTypes(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getAcceleratorTypeTest() throws Exception {
+    AcceleratorType expectedResponse =
+        AcceleratorType.newBuilder()
+            .setName(
+                AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]").toString())
+            .setType("type3575610")
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    AcceleratorTypeName name =
+        AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+
+    AcceleratorType actualResponse = client.getAcceleratorType(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetAcceleratorTypeRequest actualRequest = ((GetAcceleratorTypeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name.toString(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getAcceleratorTypeExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      AcceleratorTypeName name =
+          AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+      client.getAcceleratorType(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getAcceleratorTypeTest2() throws Exception {
+    AcceleratorType expectedResponse =
+        AcceleratorType.newBuilder()
+            .setName(
+                AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]").toString())
+            .setType("type3575610")
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    String name = "name3373707";
+
+    AcceleratorType actualResponse = client.getAcceleratorType(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetAcceleratorTypeRequest actualRequest = ((GetAcceleratorTypeRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name, actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getAcceleratorTypeExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String name = "name3373707";
+      client.getAcceleratorType(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void listRuntimeVersionsTest() throws Exception {
+    RuntimeVersion responsesElement = RuntimeVersion.newBuilder().build();
+    ListRuntimeVersionsResponse expectedResponse =
+        ListRuntimeVersionsResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllRuntimeVersions(Arrays.asList(responsesElement))
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    RuntimeVersionName parent =
+        RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]");
+
+    ListRuntimeVersionsPagedResponse pagedListResponse = client.listRuntimeVersions(parent);
+
+    List<RuntimeVersion> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getRuntimeVersionsList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListRuntimeVersionsRequest actualRequest = ((ListRuntimeVersionsRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent.toString(), actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listRuntimeVersionsExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      RuntimeVersionName parent =
+          RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]");
+      client.listRuntimeVersions(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void listRuntimeVersionsTest2() throws Exception {
+    RuntimeVersion responsesElement = RuntimeVersion.newBuilder().build();
+    ListRuntimeVersionsResponse expectedResponse =
+        ListRuntimeVersionsResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllRuntimeVersions(Arrays.asList(responsesElement))
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    String parent = "parent-995424086";
+
+    ListRuntimeVersionsPagedResponse pagedListResponse = client.listRuntimeVersions(parent);
+
+    List<RuntimeVersion> resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getRuntimeVersionsList().get(0), resources.get(0));
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListRuntimeVersionsRequest actualRequest = ((ListRuntimeVersionsRequest) actualRequests.get(0));
+
+    Assert.assertEquals(parent, actualRequest.getParent());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listRuntimeVersionsExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String parent = "parent-995424086";
+      client.listRuntimeVersions(parent);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getRuntimeVersionTest() throws Exception {
+    RuntimeVersion expectedResponse =
+        RuntimeVersion.newBuilder()
+            .setName(
+                RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString())
+            .setVersion("version351608024")
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    RuntimeVersionName name = RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]");
+
+    RuntimeVersion actualResponse = client.getRuntimeVersion(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetRuntimeVersionRequest actualRequest = ((GetRuntimeVersionRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name.toString(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getRuntimeVersionExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      RuntimeVersionName name =
+          RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]");
+      client.getRuntimeVersion(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getRuntimeVersionTest2() throws Exception {
+    RuntimeVersion expectedResponse =
+        RuntimeVersion.newBuilder()
+            .setName(
+                RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString())
+            .setVersion("version351608024")
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    String name = "name3373707";
+
+    RuntimeVersion actualResponse = client.getRuntimeVersion(name);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetRuntimeVersionRequest actualRequest = ((GetRuntimeVersionRequest) actualRequests.get(0));
+
+    Assert.assertEquals(name, actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getRuntimeVersionExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      String name = "name3373707";
+      client.getRuntimeVersion(name);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getGuestAttributesTest() throws Exception {
+    GetGuestAttributesResponse expectedResponse =
+        GetGuestAttributesResponse.newBuilder()
+            .addAllGuestAttributes(new ArrayList<GuestAttributes>())
+            .build();
+    mockTpu.addResponse(expectedResponse);
+
+    GetGuestAttributesRequest request =
+        GetGuestAttributesRequest.newBuilder()
+            .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+            .setQueryPath("queryPath-1807004403")
+            .addAllWorkerIds(new ArrayList<String>())
+            .build();
+
+    GetGuestAttributesResponse actualResponse = client.getGuestAttributes(request);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List<AbstractMessage> actualRequests = mockTpu.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetGuestAttributesRequest actualRequest = ((GetGuestAttributesRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getName(), actualRequest.getName());
+    Assert.assertEquals(request.getQueryPath(), actualRequest.getQueryPath());
+    Assert.assertEquals(request.getWorkerIdsList(), actualRequest.getWorkerIdsList());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getGuestAttributesExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockTpu.addException(exception);
+
+    try {
+      GetGuestAttributesRequest request =
+          GetGuestAttributesRequest.newBuilder()
+              .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .setQueryPath("queryPath-1807004403")
+              .addAllWorkerIds(new ArrayList<String>())
+              .build();
+      client.getGuestAttributes(request);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/grpc-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/TpuGrpc.java b/owl-bot-staging/java-tpu/v2alpha1/grpc-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/TpuGrpc.java
new file mode 100644
index 000000000000..37dfaaf024de
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/grpc-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/TpuGrpc.java
@@ -0,0 +1,1340 @@
+package com.google.cloud.tpu.v2alpha1;
+
+import static io.grpc.MethodDescriptor.generateFullMethodName;
+
+/**
+ * <pre>
+ * Manages TPU nodes and other resources
+ * TPU API v2alpha1
+ * </pre>
+ */
+@javax.annotation.Generated(
+    value = "by gRPC proto compiler",
+    comments = "Source: google/cloud/tpu/v2alpha1/cloud_tpu.proto")
+@io.grpc.stub.annotations.GrpcGenerated
+public final class TpuGrpc {
+
+  private TpuGrpc() {}
+
+  public static final String SERVICE_NAME = "google.cloud.tpu.v2alpha1.Tpu";
+
+  // Static method descriptors that strictly reflect the proto.
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.ListNodesRequest,
+      com.google.cloud.tpu.v2alpha1.ListNodesResponse> getListNodesMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListNodes",
+      requestType = com.google.cloud.tpu.v2alpha1.ListNodesRequest.class,
+      responseType = com.google.cloud.tpu.v2alpha1.ListNodesResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.ListNodesRequest,
+      com.google.cloud.tpu.v2alpha1.ListNodesResponse> getListNodesMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.ListNodesRequest, com.google.cloud.tpu.v2alpha1.ListNodesResponse> getListNodesMethod;
+    if ((getListNodesMethod = TpuGrpc.getListNodesMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getListNodesMethod = TpuGrpc.getListNodesMethod) == null) {
+          TpuGrpc.getListNodesMethod = getListNodesMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v2alpha1.ListNodesRequest, com.google.cloud.tpu.v2alpha1.ListNodesResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListNodes"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.ListNodesRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.ListNodesResponse.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("ListNodes"))
+              .build();
+        }
+      }
+    }
+    return getListNodesMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GetNodeRequest,
+      com.google.cloud.tpu.v2alpha1.Node> getGetNodeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetNode",
+      requestType = com.google.cloud.tpu.v2alpha1.GetNodeRequest.class,
+      responseType = com.google.cloud.tpu.v2alpha1.Node.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GetNodeRequest,
+      com.google.cloud.tpu.v2alpha1.Node> getGetNodeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GetNodeRequest, com.google.cloud.tpu.v2alpha1.Node> getGetNodeMethod;
+    if ((getGetNodeMethod = TpuGrpc.getGetNodeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getGetNodeMethod = TpuGrpc.getGetNodeMethod) == null) {
+          TpuGrpc.getGetNodeMethod = getGetNodeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v2alpha1.GetNodeRequest, com.google.cloud.tpu.v2alpha1.Node>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetNode"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.GetNodeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.Node.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("GetNode"))
+              .build();
+        }
+      }
+    }
+    return getGetNodeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.CreateNodeRequest,
+      com.google.longrunning.Operation> getCreateNodeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "CreateNode",
+      requestType = com.google.cloud.tpu.v2alpha1.CreateNodeRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.CreateNodeRequest,
+      com.google.longrunning.Operation> getCreateNodeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.CreateNodeRequest, com.google.longrunning.Operation> getCreateNodeMethod;
+    if ((getCreateNodeMethod = TpuGrpc.getCreateNodeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getCreateNodeMethod = TpuGrpc.getCreateNodeMethod) == null) {
+          TpuGrpc.getCreateNodeMethod = getCreateNodeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v2alpha1.CreateNodeRequest, com.google.longrunning.Operation>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "CreateNode"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.CreateNodeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.longrunning.Operation.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("CreateNode"))
+              .build();
+        }
+      }
+    }
+    return getCreateNodeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.DeleteNodeRequest,
+      com.google.longrunning.Operation> getDeleteNodeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "DeleteNode",
+      requestType = com.google.cloud.tpu.v2alpha1.DeleteNodeRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.DeleteNodeRequest,
+      com.google.longrunning.Operation> getDeleteNodeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.DeleteNodeRequest, com.google.longrunning.Operation> getDeleteNodeMethod;
+    if ((getDeleteNodeMethod = TpuGrpc.getDeleteNodeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getDeleteNodeMethod = TpuGrpc.getDeleteNodeMethod) == null) {
+          TpuGrpc.getDeleteNodeMethod = getDeleteNodeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v2alpha1.DeleteNodeRequest, com.google.longrunning.Operation>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "DeleteNode"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.DeleteNodeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.longrunning.Operation.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("DeleteNode"))
+              .build();
+        }
+      }
+    }
+    return getDeleteNodeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.StopNodeRequest,
+      com.google.longrunning.Operation> getStopNodeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "StopNode",
+      requestType = com.google.cloud.tpu.v2alpha1.StopNodeRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.StopNodeRequest,
+      com.google.longrunning.Operation> getStopNodeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.StopNodeRequest, com.google.longrunning.Operation> getStopNodeMethod;
+    if ((getStopNodeMethod = TpuGrpc.getStopNodeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getStopNodeMethod = TpuGrpc.getStopNodeMethod) == null) {
+          TpuGrpc.getStopNodeMethod = getStopNodeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v2alpha1.StopNodeRequest, com.google.longrunning.Operation>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "StopNode"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.StopNodeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.longrunning.Operation.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("StopNode"))
+              .build();
+        }
+      }
+    }
+    return getStopNodeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.StartNodeRequest,
+      com.google.longrunning.Operation> getStartNodeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "StartNode",
+      requestType = com.google.cloud.tpu.v2alpha1.StartNodeRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.StartNodeRequest,
+      com.google.longrunning.Operation> getStartNodeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.StartNodeRequest, com.google.longrunning.Operation> getStartNodeMethod;
+    if ((getStartNodeMethod = TpuGrpc.getStartNodeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getStartNodeMethod = TpuGrpc.getStartNodeMethod) == null) {
+          TpuGrpc.getStartNodeMethod = getStartNodeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v2alpha1.StartNodeRequest, com.google.longrunning.Operation>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "StartNode"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.StartNodeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.longrunning.Operation.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("StartNode"))
+              .build();
+        }
+      }
+    }
+    return getStartNodeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.UpdateNodeRequest,
+      com.google.longrunning.Operation> getUpdateNodeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "UpdateNode",
+      requestType = com.google.cloud.tpu.v2alpha1.UpdateNodeRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.UpdateNodeRequest,
+      com.google.longrunning.Operation> getUpdateNodeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.UpdateNodeRequest, com.google.longrunning.Operation> getUpdateNodeMethod;
+    if ((getUpdateNodeMethod = TpuGrpc.getUpdateNodeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getUpdateNodeMethod = TpuGrpc.getUpdateNodeMethod) == null) {
+          TpuGrpc.getUpdateNodeMethod = getUpdateNodeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v2alpha1.UpdateNodeRequest, com.google.longrunning.Operation>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "UpdateNode"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.UpdateNodeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.longrunning.Operation.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("UpdateNode"))
+              .build();
+        }
+      }
+    }
+    return getUpdateNodeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest,
+      com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse> getGenerateServiceIdentityMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GenerateServiceIdentity",
+      requestType = com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest.class,
+      responseType = com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest,
+      com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse> getGenerateServiceIdentityMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest, com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse> getGenerateServiceIdentityMethod;
+    if ((getGenerateServiceIdentityMethod = TpuGrpc.getGenerateServiceIdentityMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getGenerateServiceIdentityMethod = TpuGrpc.getGenerateServiceIdentityMethod) == null) {
+          TpuGrpc.getGenerateServiceIdentityMethod = getGenerateServiceIdentityMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest, com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GenerateServiceIdentity"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("GenerateServiceIdentity"))
+              .build();
+        }
+      }
+    }
+    return getGenerateServiceIdentityMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest,
+      com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse> getListAcceleratorTypesMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListAcceleratorTypes",
+      requestType = com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest.class,
+      responseType = com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest,
+      com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse> getListAcceleratorTypesMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest, com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse> getListAcceleratorTypesMethod;
+    if ((getListAcceleratorTypesMethod = TpuGrpc.getListAcceleratorTypesMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getListAcceleratorTypesMethod = TpuGrpc.getListAcceleratorTypesMethod) == null) {
+          TpuGrpc.getListAcceleratorTypesMethod = getListAcceleratorTypesMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest, com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListAcceleratorTypes"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("ListAcceleratorTypes"))
+              .build();
+        }
+      }
+    }
+    return getListAcceleratorTypesMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest,
+      com.google.cloud.tpu.v2alpha1.AcceleratorType> getGetAcceleratorTypeMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetAcceleratorType",
+      requestType = com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest.class,
+      responseType = com.google.cloud.tpu.v2alpha1.AcceleratorType.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest,
+      com.google.cloud.tpu.v2alpha1.AcceleratorType> getGetAcceleratorTypeMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest, com.google.cloud.tpu.v2alpha1.AcceleratorType> getGetAcceleratorTypeMethod;
+    if ((getGetAcceleratorTypeMethod = TpuGrpc.getGetAcceleratorTypeMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getGetAcceleratorTypeMethod = TpuGrpc.getGetAcceleratorTypeMethod) == null) {
+          TpuGrpc.getGetAcceleratorTypeMethod = getGetAcceleratorTypeMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest, com.google.cloud.tpu.v2alpha1.AcceleratorType>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetAcceleratorType"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.AcceleratorType.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("GetAcceleratorType"))
+              .build();
+        }
+      }
+    }
+    return getGetAcceleratorTypeMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest,
+      com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse> getListRuntimeVersionsMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ListRuntimeVersions",
+      requestType = com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest.class,
+      responseType = com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest,
+      com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse> getListRuntimeVersionsMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest, com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse> getListRuntimeVersionsMethod;
+    if ((getListRuntimeVersionsMethod = TpuGrpc.getListRuntimeVersionsMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getListRuntimeVersionsMethod = TpuGrpc.getListRuntimeVersionsMethod) == null) {
+          TpuGrpc.getListRuntimeVersionsMethod = getListRuntimeVersionsMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest, com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ListRuntimeVersions"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("ListRuntimeVersions"))
+              .build();
+        }
+      }
+    }
+    return getListRuntimeVersionsMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest,
+      com.google.cloud.tpu.v2alpha1.RuntimeVersion> getGetRuntimeVersionMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetRuntimeVersion",
+      requestType = com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest.class,
+      responseType = com.google.cloud.tpu.v2alpha1.RuntimeVersion.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest,
+      com.google.cloud.tpu.v2alpha1.RuntimeVersion> getGetRuntimeVersionMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest, com.google.cloud.tpu.v2alpha1.RuntimeVersion> getGetRuntimeVersionMethod;
+    if ((getGetRuntimeVersionMethod = TpuGrpc.getGetRuntimeVersionMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getGetRuntimeVersionMethod = TpuGrpc.getGetRuntimeVersionMethod) == null) {
+          TpuGrpc.getGetRuntimeVersionMethod = getGetRuntimeVersionMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest, com.google.cloud.tpu.v2alpha1.RuntimeVersion>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetRuntimeVersion"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.RuntimeVersion.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("GetRuntimeVersion"))
+              .build();
+        }
+      }
+    }
+    return getGetRuntimeVersionMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest,
+      com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse> getGetGuestAttributesMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetGuestAttributes",
+      requestType = com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest.class,
+      responseType = com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest,
+      com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse> getGetGuestAttributesMethod() {
+    io.grpc.MethodDescriptor<com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest, com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse> getGetGuestAttributesMethod;
+    if ((getGetGuestAttributesMethod = TpuGrpc.getGetGuestAttributesMethod) == null) {
+      synchronized (TpuGrpc.class) {
+        if ((getGetGuestAttributesMethod = TpuGrpc.getGetGuestAttributesMethod) == null) {
+          TpuGrpc.getGetGuestAttributesMethod = getGetGuestAttributesMethod =
+              io.grpc.MethodDescriptor.<com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest, com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetGuestAttributes"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest.getDefaultInstance()))
+              .setResponseMarshaller(io.grpc.protobuf.ProtoUtils.marshaller(
+                  com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse.getDefaultInstance()))
+              .setSchemaDescriptor(new TpuMethodDescriptorSupplier("GetGuestAttributes"))
+              .build();
+        }
+      }
+    }
+    return getGetGuestAttributesMethod;
+  }
+
+  /**
+   * Creates a new async stub that supports all call types for the service
+   */
+  public static TpuStub newStub(io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<TpuStub> factory =
+      new io.grpc.stub.AbstractStub.StubFactory<TpuStub>() {
+        @java.lang.Override
+        public TpuStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+          return new TpuStub(channel, callOptions);
+        }
+      };
+    return TpuStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new blocking-style stub that supports unary and streaming output calls on the service
+   */
+  public static TpuBlockingStub newBlockingStub(
+      io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<TpuBlockingStub> factory =
+      new io.grpc.stub.AbstractStub.StubFactory<TpuBlockingStub>() {
+        @java.lang.Override
+        public TpuBlockingStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+          return new TpuBlockingStub(channel, callOptions);
+        }
+      };
+    return TpuBlockingStub.newStub(factory, channel);
+  }
+
+  /**
+   * Creates a new ListenableFuture-style stub that supports unary calls on the service
+   */
+  public static TpuFutureStub newFutureStub(
+      io.grpc.Channel channel) {
+    io.grpc.stub.AbstractStub.StubFactory<TpuFutureStub> factory =
+      new io.grpc.stub.AbstractStub.StubFactory<TpuFutureStub>() {
+        @java.lang.Override
+        public TpuFutureStub newStub(io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+          return new TpuFutureStub(channel, callOptions);
+        }
+      };
+    return TpuFutureStub.newStub(factory, channel);
+  }
+
+  /**
+   * <pre>
+   * Manages TPU nodes and other resources
+   * TPU API v2alpha1
+   * </pre>
+   */
+  public static abstract class TpuImplBase implements io.grpc.BindableService {
+
+    /**
+     * <pre>
+     * Lists nodes.
+     * </pre>
+     */
+    public void listNodes(com.google.cloud.tpu.v2alpha1.ListNodesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.ListNodesResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getListNodesMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Gets the details of a node.
+     * </pre>
+     */
+    public void getNode(com.google.cloud.tpu.v2alpha1.GetNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.Node> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getGetNodeMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Creates a node.
+     * </pre>
+     */
+    public void createNode(com.google.cloud.tpu.v2alpha1.CreateNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getCreateNodeMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Deletes a node.
+     * </pre>
+     */
+    public void deleteNode(com.google.cloud.tpu.v2alpha1.DeleteNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getDeleteNodeMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Stops a node. This operation is only available with single TPU nodes.
+     * </pre>
+     */
+    public void stopNode(com.google.cloud.tpu.v2alpha1.StopNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getStopNodeMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Starts a node.
+     * </pre>
+     */
+    public void startNode(com.google.cloud.tpu.v2alpha1.StartNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getStartNodeMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Updates the configurations of a node.
+     * </pre>
+     */
+    public void updateNode(com.google.cloud.tpu.v2alpha1.UpdateNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getUpdateNodeMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Generates the Cloud TPU service identity for the project.
+     * </pre>
+     */
+    public void generateServiceIdentity(com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getGenerateServiceIdentityMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Lists accelerator types supported by this API.
+     * </pre>
+     */
+    public void listAcceleratorTypes(com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getListAcceleratorTypesMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Gets AcceleratorType.
+     * </pre>
+     */
+    public void getAcceleratorType(com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.AcceleratorType> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getGetAcceleratorTypeMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Lists runtime versions supported by this API.
+     * </pre>
+     */
+    public void listRuntimeVersions(com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getListRuntimeVersionsMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Gets a runtime version.
+     * </pre>
+     */
+    public void getRuntimeVersion(com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.RuntimeVersion> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getGetRuntimeVersionMethod(), responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Retrieves the guest attributes for the node.
+     * </pre>
+     */
+    public void getGuestAttributes(com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse> responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(getGetGuestAttributesMethod(), responseObserver);
+    }
+
+    @java.lang.Override public final io.grpc.ServerServiceDefinition bindService() {
+      return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
+          .addMethod(
+            getListNodesMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v2alpha1.ListNodesRequest,
+                com.google.cloud.tpu.v2alpha1.ListNodesResponse>(
+                  this, METHODID_LIST_NODES)))
+          .addMethod(
+            getGetNodeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v2alpha1.GetNodeRequest,
+                com.google.cloud.tpu.v2alpha1.Node>(
+                  this, METHODID_GET_NODE)))
+          .addMethod(
+            getCreateNodeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v2alpha1.CreateNodeRequest,
+                com.google.longrunning.Operation>(
+                  this, METHODID_CREATE_NODE)))
+          .addMethod(
+            getDeleteNodeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v2alpha1.DeleteNodeRequest,
+                com.google.longrunning.Operation>(
+                  this, METHODID_DELETE_NODE)))
+          .addMethod(
+            getStopNodeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v2alpha1.StopNodeRequest,
+                com.google.longrunning.Operation>(
+                  this, METHODID_STOP_NODE)))
+          .addMethod(
+            getStartNodeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v2alpha1.StartNodeRequest,
+                com.google.longrunning.Operation>(
+                  this, METHODID_START_NODE)))
+          .addMethod(
+            getUpdateNodeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v2alpha1.UpdateNodeRequest,
+                com.google.longrunning.Operation>(
+                  this, METHODID_UPDATE_NODE)))
+          .addMethod(
+            getGenerateServiceIdentityMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest,
+                com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse>(
+                  this, METHODID_GENERATE_SERVICE_IDENTITY)))
+          .addMethod(
+            getListAcceleratorTypesMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest,
+                com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse>(
+                  this, METHODID_LIST_ACCELERATOR_TYPES)))
+          .addMethod(
+            getGetAcceleratorTypeMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest,
+                com.google.cloud.tpu.v2alpha1.AcceleratorType>(
+                  this, METHODID_GET_ACCELERATOR_TYPE)))
+          .addMethod(
+            getListRuntimeVersionsMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest,
+                com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse>(
+                  this, METHODID_LIST_RUNTIME_VERSIONS)))
+          .addMethod(
+            getGetRuntimeVersionMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest,
+                com.google.cloud.tpu.v2alpha1.RuntimeVersion>(
+                  this, METHODID_GET_RUNTIME_VERSION)))
+          .addMethod(
+            getGetGuestAttributesMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+              new MethodHandlers<
+                com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest,
+                com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse>(
+                  this, METHODID_GET_GUEST_ATTRIBUTES)))
+          .build();
+    }
+  }
+
+  /**
+   * <pre>
+   * Manages TPU nodes and other resources
+   * TPU API v2alpha1
+   * </pre>
+   */
+  public static final class TpuStub extends io.grpc.stub.AbstractAsyncStub<TpuStub> {
+    private TpuStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected TpuStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new TpuStub(channel, callOptions);
+    }
+
+    /**
+     * <pre>
+     * Lists nodes.
+     * </pre>
+     */
+    public void listNodes(com.google.cloud.tpu.v2alpha1.ListNodesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.ListNodesResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getListNodesMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Gets the details of a node.
+     * </pre>
+     */
+    public void getNode(com.google.cloud.tpu.v2alpha1.GetNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.Node> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getGetNodeMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Creates a node.
+     * </pre>
+     */
+    public void createNode(com.google.cloud.tpu.v2alpha1.CreateNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getCreateNodeMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Deletes a node.
+     * </pre>
+     */
+    public void deleteNode(com.google.cloud.tpu.v2alpha1.DeleteNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getDeleteNodeMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Stops a node. This operation is only available with single TPU nodes.
+     * </pre>
+     */
+    public void stopNode(com.google.cloud.tpu.v2alpha1.StopNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getStopNodeMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Starts a node.
+     * </pre>
+     */
+    public void startNode(com.google.cloud.tpu.v2alpha1.StartNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getStartNodeMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Updates the configurations of a node.
+     * </pre>
+     */
+    public void updateNode(com.google.cloud.tpu.v2alpha1.UpdateNodeRequest request,
+        io.grpc.stub.StreamObserver<com.google.longrunning.Operation> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getUpdateNodeMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Generates the Cloud TPU service identity for the project.
+     * </pre>
+     */
+    public void generateServiceIdentity(com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getGenerateServiceIdentityMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Lists accelerator types supported by this API.
+     * </pre>
+     */
+    public void listAcceleratorTypes(com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getListAcceleratorTypesMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Gets AcceleratorType.
+     * </pre>
+     */
+    public void getAcceleratorType(com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.AcceleratorType> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getGetAcceleratorTypeMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Lists runtime versions supported by this API.
+     * </pre>
+     */
+    public void listRuntimeVersions(com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getListRuntimeVersionsMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Gets a runtime version.
+     * </pre>
+     */
+    public void getRuntimeVersion(com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.RuntimeVersion> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getGetRuntimeVersionMethod(), getCallOptions()), request, responseObserver);
+    }
+
+    /**
+     * <pre>
+     * Retrieves the guest attributes for the node.
+     * </pre>
+     */
+    public void getGuestAttributes(com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest request,
+        io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse> responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getGetGuestAttributesMethod(), getCallOptions()), request, responseObserver);
+    }
+  }
+
+  /**
+   * <pre>
+   * Manages TPU nodes and other resources
+   * TPU API v2alpha1
+   * </pre>
+   */
+  public static final class TpuBlockingStub extends io.grpc.stub.AbstractBlockingStub<TpuBlockingStub> {
+    private TpuBlockingStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected TpuBlockingStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new TpuBlockingStub(channel, callOptions);
+    }
+
+    /**
+     * <pre>
+     * Lists nodes.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v2alpha1.ListNodesResponse listNodes(com.google.cloud.tpu.v2alpha1.ListNodesRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getListNodesMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Gets the details of a node.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v2alpha1.Node getNode(com.google.cloud.tpu.v2alpha1.GetNodeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGetNodeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Creates a node.
+     * </pre>
+     */
+    public com.google.longrunning.Operation createNode(com.google.cloud.tpu.v2alpha1.CreateNodeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getCreateNodeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Deletes a node.
+     * </pre>
+     */
+    public com.google.longrunning.Operation deleteNode(com.google.cloud.tpu.v2alpha1.DeleteNodeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getDeleteNodeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Stops a node. This operation is only available with single TPU nodes.
+     * </pre>
+     */
+    public com.google.longrunning.Operation stopNode(com.google.cloud.tpu.v2alpha1.StopNodeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getStopNodeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Starts a node.
+     * </pre>
+     */
+    public com.google.longrunning.Operation startNode(com.google.cloud.tpu.v2alpha1.StartNodeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getStartNodeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Updates the configurations of a node.
+     * </pre>
+     */
+    public com.google.longrunning.Operation updateNode(com.google.cloud.tpu.v2alpha1.UpdateNodeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getUpdateNodeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Generates the Cloud TPU service identity for the project.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse generateServiceIdentity(com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGenerateServiceIdentityMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Lists accelerator types supported by this API.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse listAcceleratorTypes(com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getListAcceleratorTypesMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Gets AcceleratorType.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v2alpha1.AcceleratorType getAcceleratorType(com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGetAcceleratorTypeMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Lists runtime versions supported by this API.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse listRuntimeVersions(com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getListRuntimeVersionsMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Gets a runtime version.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v2alpha1.RuntimeVersion getRuntimeVersion(com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGetRuntimeVersionMethod(), getCallOptions(), request);
+    }
+
+    /**
+     * <pre>
+     * Retrieves the guest attributes for the node.
+     * </pre>
+     */
+    public com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse getGuestAttributes(com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGetGuestAttributesMethod(), getCallOptions(), request);
+    }
+  }
+
+  /**
+   * <pre>
+   * Manages TPU nodes and other resources
+   * TPU API v2alpha1
+   * </pre>
+   */
+  public static final class TpuFutureStub extends io.grpc.stub.AbstractFutureStub<TpuFutureStub> {
+    private TpuFutureStub(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      super(channel, callOptions);
+    }
+
+    @java.lang.Override
+    protected TpuFutureStub build(
+        io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
+      return new TpuFutureStub(channel, callOptions);
+    }
+
+    /**
+     * <pre>
+     * Lists nodes.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v2alpha1.ListNodesResponse> listNodes(
+        com.google.cloud.tpu.v2alpha1.ListNodesRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getListNodesMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Gets the details of a node.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v2alpha1.Node> getNode(
+        com.google.cloud.tpu.v2alpha1.GetNodeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getGetNodeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Creates a node.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation> createNode(
+        com.google.cloud.tpu.v2alpha1.CreateNodeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getCreateNodeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Deletes a node.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation> deleteNode(
+        com.google.cloud.tpu.v2alpha1.DeleteNodeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getDeleteNodeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Stops a node. This operation is only available with single TPU nodes.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation> stopNode(
+        com.google.cloud.tpu.v2alpha1.StopNodeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getStopNodeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Starts a node.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation> startNode(
+        com.google.cloud.tpu.v2alpha1.StartNodeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getStartNodeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Updates the configurations of a node.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.longrunning.Operation> updateNode(
+        com.google.cloud.tpu.v2alpha1.UpdateNodeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getUpdateNodeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Generates the Cloud TPU service identity for the project.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse> generateServiceIdentity(
+        com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getGenerateServiceIdentityMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Lists accelerator types supported by this API.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse> listAcceleratorTypes(
+        com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getListAcceleratorTypesMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Gets AcceleratorType.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v2alpha1.AcceleratorType> getAcceleratorType(
+        com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getGetAcceleratorTypeMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Lists runtime versions supported by this API.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse> listRuntimeVersions(
+        com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getListRuntimeVersionsMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Gets a runtime version.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v2alpha1.RuntimeVersion> getRuntimeVersion(
+        com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getGetRuntimeVersionMethod(), getCallOptions()), request);
+    }
+
+    /**
+     * <pre>
+     * Retrieves the guest attributes for the node.
+     * </pre>
+     */
+    public com.google.common.util.concurrent.ListenableFuture<com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse> getGuestAttributes(
+        com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getGetGuestAttributesMethod(), getCallOptions()), request);
+    }
+  }
+
+  private static final int METHODID_LIST_NODES = 0;
+  private static final int METHODID_GET_NODE = 1;
+  private static final int METHODID_CREATE_NODE = 2;
+  private static final int METHODID_DELETE_NODE = 3;
+  private static final int METHODID_STOP_NODE = 4;
+  private static final int METHODID_START_NODE = 5;
+  private static final int METHODID_UPDATE_NODE = 6;
+  private static final int METHODID_GENERATE_SERVICE_IDENTITY = 7;
+  private static final int METHODID_LIST_ACCELERATOR_TYPES = 8;
+  private static final int METHODID_GET_ACCELERATOR_TYPE = 9;
+  private static final int METHODID_LIST_RUNTIME_VERSIONS = 10;
+  private static final int METHODID_GET_RUNTIME_VERSION = 11;
+  private static final int METHODID_GET_GUEST_ATTRIBUTES = 12;
+
+  private static final class MethodHandlers<Req, Resp> implements
+      io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
+      io.grpc.stub.ServerCalls.ServerStreamingMethod<Req, Resp>,
+      io.grpc.stub.ServerCalls.ClientStreamingMethod<Req, Resp>,
+      io.grpc.stub.ServerCalls.BidiStreamingMethod<Req, Resp> {
+    private final TpuImplBase serviceImpl;
+    private final int methodId;
+
+    MethodHandlers(TpuImplBase serviceImpl, int methodId) {
+      this.serviceImpl = serviceImpl;
+      this.methodId = methodId;
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        case METHODID_LIST_NODES:
+          serviceImpl.listNodes((com.google.cloud.tpu.v2alpha1.ListNodesRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.ListNodesResponse>) responseObserver);
+          break;
+        case METHODID_GET_NODE:
+          serviceImpl.getNode((com.google.cloud.tpu.v2alpha1.GetNodeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.Node>) responseObserver);
+          break;
+        case METHODID_CREATE_NODE:
+          serviceImpl.createNode((com.google.cloud.tpu.v2alpha1.CreateNodeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_DELETE_NODE:
+          serviceImpl.deleteNode((com.google.cloud.tpu.v2alpha1.DeleteNodeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_STOP_NODE:
+          serviceImpl.stopNode((com.google.cloud.tpu.v2alpha1.StopNodeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_START_NODE:
+          serviceImpl.startNode((com.google.cloud.tpu.v2alpha1.StartNodeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_UPDATE_NODE:
+          serviceImpl.updateNode((com.google.cloud.tpu.v2alpha1.UpdateNodeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.longrunning.Operation>) responseObserver);
+          break;
+        case METHODID_GENERATE_SERVICE_IDENTITY:
+          serviceImpl.generateServiceIdentity((com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse>) responseObserver);
+          break;
+        case METHODID_LIST_ACCELERATOR_TYPES:
+          serviceImpl.listAcceleratorTypes((com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse>) responseObserver);
+          break;
+        case METHODID_GET_ACCELERATOR_TYPE:
+          serviceImpl.getAcceleratorType((com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.AcceleratorType>) responseObserver);
+          break;
+        case METHODID_LIST_RUNTIME_VERSIONS:
+          serviceImpl.listRuntimeVersions((com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse>) responseObserver);
+          break;
+        case METHODID_GET_RUNTIME_VERSION:
+          serviceImpl.getRuntimeVersion((com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.RuntimeVersion>) responseObserver);
+          break;
+        case METHODID_GET_GUEST_ATTRIBUTES:
+          serviceImpl.getGuestAttributes((com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest) request,
+              (io.grpc.stub.StreamObserver<com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse>) responseObserver);
+          break;
+        default:
+          throw new AssertionError();
+      }
+    }
+
+    @java.lang.Override
+    @java.lang.SuppressWarnings("unchecked")
+    public io.grpc.stub.StreamObserver<Req> invoke(
+        io.grpc.stub.StreamObserver<Resp> responseObserver) {
+      switch (methodId) {
+        default:
+          throw new AssertionError();
+      }
+    }
+  }
+
+  private static abstract class TpuBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoFileDescriptorSupplier, io.grpc.protobuf.ProtoServiceDescriptorSupplier {
+    TpuBaseDescriptorSupplier() {}
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.FileDescriptor getFileDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.getDescriptor();
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.ServiceDescriptor getServiceDescriptor() {
+      return getFileDescriptor().findServiceByName("Tpu");
+    }
+  }
+
+  private static final class TpuFileDescriptorSupplier
+      extends TpuBaseDescriptorSupplier {
+    TpuFileDescriptorSupplier() {}
+  }
+
+  private static final class TpuMethodDescriptorSupplier
+      extends TpuBaseDescriptorSupplier
+      implements io.grpc.protobuf.ProtoMethodDescriptorSupplier {
+    private final String methodName;
+
+    TpuMethodDescriptorSupplier(String methodName) {
+      this.methodName = methodName;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.MethodDescriptor getMethodDescriptor() {
+      return getServiceDescriptor().findMethodByName(methodName);
+    }
+  }
+
+  private static volatile io.grpc.ServiceDescriptor serviceDescriptor;
+
+  public static io.grpc.ServiceDescriptor getServiceDescriptor() {
+    io.grpc.ServiceDescriptor result = serviceDescriptor;
+    if (result == null) {
+      synchronized (TpuGrpc.class) {
+        result = serviceDescriptor;
+        if (result == null) {
+          serviceDescriptor = result = io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
+              .setSchemaDescriptor(new TpuFileDescriptorSupplier())
+              .addMethod(getListNodesMethod())
+              .addMethod(getGetNodeMethod())
+              .addMethod(getCreateNodeMethod())
+              .addMethod(getDeleteNodeMethod())
+              .addMethod(getStopNodeMethod())
+              .addMethod(getStartNodeMethod())
+              .addMethod(getUpdateNodeMethod())
+              .addMethod(getGenerateServiceIdentityMethod())
+              .addMethod(getListAcceleratorTypesMethod())
+              .addMethod(getGetAcceleratorTypeMethod())
+              .addMethod(getListRuntimeVersionsMethod())
+              .addMethod(getGetRuntimeVersionMethod())
+              .addMethod(getGetGuestAttributesMethod())
+              .build();
+        }
+      }
+    }
+    return result;
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorType.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorType.java
new file mode 100644
index 000000000000..d75113261ecf
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorType.java
@@ -0,0 +1,761 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * A accelerator type that a Node can be configured with.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.AcceleratorType}
+ */
+public final class AcceleratorType extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.AcceleratorType)
+    AcceleratorTypeOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use AcceleratorType.newBuilder() to construct.
+  private AcceleratorType(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private AcceleratorType() {
+    name_ = "";
+    type_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new AcceleratorType();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private AcceleratorType(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            type_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AcceleratorType_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AcceleratorType_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.AcceleratorType.class, com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int TYPE_FIELD_NUMBER = 2;
+  private volatile java.lang.Object type_;
+  /**
+   * <pre>
+   * the accelerator type.
+   * </pre>
+   *
+   * <code>string type = 2;</code>
+   * @return The type.
+   */
+  @java.lang.Override
+  public java.lang.String getType() {
+    java.lang.Object ref = type_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      type_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * the accelerator type.
+   * </pre>
+   *
+   * <code>string type = 2;</code>
+   * @return The bytes for type.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getTypeBytes() {
+    java.lang.Object ref = type_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      type_ = b;
+      return b;
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+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
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+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(type_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, type_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(type_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, type_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.AcceleratorType)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.AcceleratorType other = (com.google.cloud.tpu.v2alpha1.AcceleratorType) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!getType()
+        .equals(other.getType())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + TYPE_FIELD_NUMBER;
+    hash = (53 * hash) + getType().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.AcceleratorType parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AcceleratorType parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AcceleratorType parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AcceleratorType parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AcceleratorType parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AcceleratorType parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AcceleratorType parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AcceleratorType parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AcceleratorType parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AcceleratorType parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AcceleratorType parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AcceleratorType parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.AcceleratorType prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A accelerator type that a Node can be configured with.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.AcceleratorType}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.AcceleratorType)
+      com.google.cloud.tpu.v2alpha1.AcceleratorTypeOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AcceleratorType_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AcceleratorType_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.AcceleratorType.class, com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.AcceleratorType.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      type_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AcceleratorType_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.AcceleratorType getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.AcceleratorType.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.AcceleratorType build() {
+      com.google.cloud.tpu.v2alpha1.AcceleratorType result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.AcceleratorType buildPartial() {
+      com.google.cloud.tpu.v2alpha1.AcceleratorType result = new com.google.cloud.tpu.v2alpha1.AcceleratorType(this);
+      result.name_ = name_;
+      result.type_ = type_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.AcceleratorType) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.AcceleratorType)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.AcceleratorType other) {
+      if (other == com.google.cloud.tpu.v2alpha1.AcceleratorType.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getType().isEmpty()) {
+        type_ = other.type_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.AcceleratorType parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.AcceleratorType) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object type_ = "";
+    /**
+     * <pre>
+     * the accelerator type.
+     * </pre>
+     *
+     * <code>string type = 2;</code>
+     * @return The type.
+     */
+    public java.lang.String getType() {
+      java.lang.Object ref = type_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        type_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * the accelerator type.
+     * </pre>
+     *
+     * <code>string type = 2;</code>
+     * @return The bytes for type.
+     */
+    public com.google.protobuf.ByteString
+        getTypeBytes() {
+      java.lang.Object ref = type_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        type_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * the accelerator type.
+     * </pre>
+     *
+     * <code>string type = 2;</code>
+     * @param value The type to set.
+     * @return This builder for chaining.
+     */
+    public Builder setType(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      type_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * the accelerator type.
+     * </pre>
+     *
+     * <code>string type = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearType() {
+      
+      type_ = getDefaultInstance().getType();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * the accelerator type.
+     * </pre>
+     *
+     * <code>string type = 2;</code>
+     * @param value The bytes for type to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTypeBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      type_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.AcceleratorType)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.AcceleratorType)
+  private static final com.google.cloud.tpu.v2alpha1.AcceleratorType DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.AcceleratorType();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.AcceleratorType getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<AcceleratorType>
+      PARSER = new com.google.protobuf.AbstractParser<AcceleratorType>() {
+    @java.lang.Override
+    public AcceleratorType parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new AcceleratorType(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<AcceleratorType> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<AcceleratorType> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.AcceleratorType getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorTypeName.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorTypeName.java
new file mode 100644
index 000000000000..f9c364852c39
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorTypeName.java
@@ -0,0 +1,227 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+@Generated("by gapic-generator-java")
+public class AcceleratorTypeName implements ResourceName {
+  private static final PathTemplate PROJECT_LOCATION_ACCELERATOR_TYPE =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/acceleratorTypes/{accelerator_type}");
+  private volatile Map<String, String> fieldValuesMap;
+  private final String project;
+  private final String location;
+  private final String acceleratorType;
+
+  @Deprecated
+  protected AcceleratorTypeName() {
+    project = null;
+    location = null;
+    acceleratorType = null;
+  }
+
+  private AcceleratorTypeName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    acceleratorType = Preconditions.checkNotNull(builder.getAcceleratorType());
+  }
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getAcceleratorType() {
+    return acceleratorType;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static AcceleratorTypeName of(String project, String location, String acceleratorType) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAcceleratorType(acceleratorType)
+        .build();
+  }
+
+  public static String format(String project, String location, String acceleratorType) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setAcceleratorType(acceleratorType)
+        .build()
+        .toString();
+  }
+
+  public static AcceleratorTypeName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PROJECT_LOCATION_ACCELERATOR_TYPE.validatedMatch(
+            formattedString, "AcceleratorTypeName.parse: formattedString not in valid format");
+    return of(matchMap.get("project"), matchMap.get("location"), matchMap.get("accelerator_type"));
+  }
+
+  public static List<AcceleratorTypeName> parseList(List<String> formattedStrings) {
+    List<AcceleratorTypeName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<AcceleratorTypeName> values) {
+    List<String> list = new ArrayList<>(values.size());
+    for (AcceleratorTypeName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT_LOCATION_ACCELERATOR_TYPE.matches(formattedString);
+  }
+
+  @Override
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          if (acceleratorType != null) {
+            fieldMapBuilder.put("accelerator_type", acceleratorType);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PROJECT_LOCATION_ACCELERATOR_TYPE.instantiate(
+        "project", project, "location", location, "accelerator_type", acceleratorType);
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      AcceleratorTypeName that = ((AcceleratorTypeName) o);
+      return Objects.equals(this.project, that.project)
+          && Objects.equals(this.location, that.location)
+          && Objects.equals(this.acceleratorType, that.acceleratorType);
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    h *= 1000003;
+    h ^= Objects.hashCode(acceleratorType);
+    return h;
+  }
+
+  /** Builder for projects/{project}/locations/{location}/acceleratorTypes/{accelerator_type}. */
+  public static class Builder {
+    private String project;
+    private String location;
+    private String acceleratorType;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getAcceleratorType() {
+      return acceleratorType;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setAcceleratorType(String acceleratorType) {
+      this.acceleratorType = acceleratorType;
+      return this;
+    }
+
+    private Builder(AcceleratorTypeName acceleratorTypeName) {
+      this.project = acceleratorTypeName.project;
+      this.location = acceleratorTypeName.location;
+      this.acceleratorType = acceleratorTypeName.acceleratorType;
+    }
+
+    public AcceleratorTypeName build() {
+      return new AcceleratorTypeName(this);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorTypeOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorTypeOrBuilder.java
new file mode 100644
index 000000000000..961b59c1216c
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AcceleratorTypeOrBuilder.java
@@ -0,0 +1,49 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface AcceleratorTypeOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.AcceleratorType)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+
+  /**
+   * <pre>
+   * the accelerator type.
+   * </pre>
+   *
+   * <code>string type = 2;</code>
+   * @return The type.
+   */
+  java.lang.String getType();
+  /**
+   * <pre>
+   * the accelerator type.
+   * </pre>
+   *
+   * <code>string type = 2;</code>
+   * @return The bytes for type.
+   */
+  com.google.protobuf.ByteString
+      getTypeBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfig.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfig.java
new file mode 100644
index 000000000000..f9bc2d2564c5
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfig.java
@@ -0,0 +1,595 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * An access config attached to the TPU worker.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.AccessConfig}
+ */
+public final class AccessConfig extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.AccessConfig)
+    AccessConfigOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use AccessConfig.newBuilder() to construct.
+  private AccessConfig(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private AccessConfig() {
+    externalIp_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new AccessConfig();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private AccessConfig(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            externalIp_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AccessConfig_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AccessConfig_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.AccessConfig.class, com.google.cloud.tpu.v2alpha1.AccessConfig.Builder.class);
+  }
+
+  public static final int EXTERNAL_IP_FIELD_NUMBER = 1;
+  private volatile java.lang.Object externalIp_;
+  /**
+   * <pre>
+   * Output only. An external IP address associated with the TPU worker.
+   * </pre>
+   *
+   * <code>string external_ip = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The externalIp.
+   */
+  @java.lang.Override
+  public java.lang.String getExternalIp() {
+    java.lang.Object ref = externalIp_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      externalIp_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Output only. An external IP address associated with the TPU worker.
+   * </pre>
+   *
+   * <code>string external_ip = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The bytes for externalIp.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getExternalIpBytes() {
+    java.lang.Object ref = externalIp_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      externalIp_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(externalIp_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, externalIp_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(externalIp_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, externalIp_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.AccessConfig)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.AccessConfig other = (com.google.cloud.tpu.v2alpha1.AccessConfig) obj;
+
+    if (!getExternalIp()
+        .equals(other.getExternalIp())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + EXTERNAL_IP_FIELD_NUMBER;
+    hash = (53 * hash) + getExternalIp().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.AccessConfig parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AccessConfig parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AccessConfig parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AccessConfig parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AccessConfig parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AccessConfig parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AccessConfig parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AccessConfig parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AccessConfig parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AccessConfig parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AccessConfig parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AccessConfig parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.AccessConfig prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * An access config attached to the TPU worker.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.AccessConfig}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.AccessConfig)
+      com.google.cloud.tpu.v2alpha1.AccessConfigOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AccessConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AccessConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.AccessConfig.class, com.google.cloud.tpu.v2alpha1.AccessConfig.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.AccessConfig.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      externalIp_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AccessConfig_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.AccessConfig getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.AccessConfig.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.AccessConfig build() {
+      com.google.cloud.tpu.v2alpha1.AccessConfig result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.AccessConfig buildPartial() {
+      com.google.cloud.tpu.v2alpha1.AccessConfig result = new com.google.cloud.tpu.v2alpha1.AccessConfig(this);
+      result.externalIp_ = externalIp_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.AccessConfig) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.AccessConfig)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.AccessConfig other) {
+      if (other == com.google.cloud.tpu.v2alpha1.AccessConfig.getDefaultInstance()) return this;
+      if (!other.getExternalIp().isEmpty()) {
+        externalIp_ = other.externalIp_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.AccessConfig parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.AccessConfig) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object externalIp_ = "";
+    /**
+     * <pre>
+     * Output only. An external IP address associated with the TPU worker.
+     * </pre>
+     *
+     * <code>string external_ip = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The externalIp.
+     */
+    public java.lang.String getExternalIp() {
+      java.lang.Object ref = externalIp_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        externalIp_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. An external IP address associated with the TPU worker.
+     * </pre>
+     *
+     * <code>string external_ip = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The bytes for externalIp.
+     */
+    public com.google.protobuf.ByteString
+        getExternalIpBytes() {
+      java.lang.Object ref = externalIp_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        externalIp_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. An external IP address associated with the TPU worker.
+     * </pre>
+     *
+     * <code>string external_ip = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The externalIp to set.
+     * @return This builder for chaining.
+     */
+    public Builder setExternalIp(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      externalIp_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. An external IP address associated with the TPU worker.
+     * </pre>
+     *
+     * <code>string external_ip = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearExternalIp() {
+      
+      externalIp_ = getDefaultInstance().getExternalIp();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. An external IP address associated with the TPU worker.
+     * </pre>
+     *
+     * <code>string external_ip = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The bytes for externalIp to set.
+     * @return This builder for chaining.
+     */
+    public Builder setExternalIpBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      externalIp_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.AccessConfig)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.AccessConfig)
+  private static final com.google.cloud.tpu.v2alpha1.AccessConfig DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.AccessConfig();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.AccessConfig getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<AccessConfig>
+      PARSER = new com.google.protobuf.AbstractParser<AccessConfig>() {
+    @java.lang.Override
+    public AccessConfig parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new AccessConfig(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<AccessConfig> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<AccessConfig> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.AccessConfig getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfigOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfigOrBuilder.java
new file mode 100644
index 000000000000..f8ae5ed04810
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AccessConfigOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface AccessConfigOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.AccessConfig)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Output only. An external IP address associated with the TPU worker.
+   * </pre>
+   *
+   * <code>string external_ip = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The externalIp.
+   */
+  java.lang.String getExternalIp();
+  /**
+   * <pre>
+   * Output only. An external IP address associated with the TPU worker.
+   * </pre>
+   *
+   * <code>string external_ip = 1 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The bytes for externalIp.
+   */
+  com.google.protobuf.ByteString
+      getExternalIpBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDisk.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDisk.java
new file mode 100644
index 000000000000..bc2123e95ae5
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDisk.java
@@ -0,0 +1,891 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * A node-attached disk resource.
+ * Next ID: 8;
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.AttachedDisk}
+ */
+public final class AttachedDisk extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.AttachedDisk)
+    AttachedDiskOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use AttachedDisk.newBuilder() to construct.
+  private AttachedDisk(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private AttachedDisk() {
+    sourceDisk_ = "";
+    mode_ = 0;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new AttachedDisk();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private AttachedDisk(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            sourceDisk_ = s;
+            break;
+          }
+          case 32: {
+            int rawValue = input.readEnum();
+
+            mode_ = rawValue;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AttachedDisk_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AttachedDisk_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.AttachedDisk.class, com.google.cloud.tpu.v2alpha1.AttachedDisk.Builder.class);
+  }
+
+  /**
+   * <pre>
+   * The different mode of the attached disk.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode}
+   */
+  public enum DiskMode
+      implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     * <pre>
+     * The disk mode is not known/set.
+     * </pre>
+     *
+     * <code>DISK_MODE_UNSPECIFIED = 0;</code>
+     */
+    DISK_MODE_UNSPECIFIED(0),
+    /**
+     * <pre>
+     * Attaches the disk in read-write mode. Only one TPU node can attach a disk
+     * in read-write mode at a time.
+     * </pre>
+     *
+     * <code>READ_WRITE = 1;</code>
+     */
+    READ_WRITE(1),
+    /**
+     * <pre>
+     * Attaches the disk in read-only mode. Multiple TPU nodes can attach
+     * a disk in read-only mode at a time.
+     * </pre>
+     *
+     * <code>READ_ONLY = 2;</code>
+     */
+    READ_ONLY(2),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     * <pre>
+     * The disk mode is not known/set.
+     * </pre>
+     *
+     * <code>DISK_MODE_UNSPECIFIED = 0;</code>
+     */
+    public static final int DISK_MODE_UNSPECIFIED_VALUE = 0;
+    /**
+     * <pre>
+     * Attaches the disk in read-write mode. Only one TPU node can attach a disk
+     * in read-write mode at a time.
+     * </pre>
+     *
+     * <code>READ_WRITE = 1;</code>
+     */
+    public static final int READ_WRITE_VALUE = 1;
+    /**
+     * <pre>
+     * Attaches the disk in read-only mode. Multiple TPU nodes can attach
+     * a disk in read-only mode at a time.
+     * </pre>
+     *
+     * <code>READ_ONLY = 2;</code>
+     */
+    public static final int READ_ONLY_VALUE = 2;
+
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static DiskMode valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static DiskMode forNumber(int value) {
+      switch (value) {
+        case 0: return DISK_MODE_UNSPECIFIED;
+        case 1: return READ_WRITE;
+        case 2: return READ_ONLY;
+        default: return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<DiskMode>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+    private static final com.google.protobuf.Internal.EnumLiteMap<
+        DiskMode> internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap<DiskMode>() {
+            public DiskMode findValueByNumber(int number) {
+              return DiskMode.forNumber(number);
+            }
+          };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor
+        getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+    public final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptorForType() {
+      return getDescriptor();
+    }
+    public static final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.AttachedDisk.getDescriptor().getEnumTypes().get(0);
+    }
+
+    private static final DiskMode[] VALUES = values();
+
+    public static DiskMode valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private DiskMode(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode)
+  }
+
+  public static final int SOURCE_DISK_FIELD_NUMBER = 3;
+  private volatile java.lang.Object sourceDisk_;
+  /**
+   * <pre>
+   * Specifies the full path to an existing disk.
+   * For example: "projects/my-project/zones/us-central1-c/disks/my-disk".
+   * </pre>
+   *
+   * <code>string source_disk = 3;</code>
+   * @return The sourceDisk.
+   */
+  @java.lang.Override
+  public java.lang.String getSourceDisk() {
+    java.lang.Object ref = sourceDisk_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      sourceDisk_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Specifies the full path to an existing disk.
+   * For example: "projects/my-project/zones/us-central1-c/disks/my-disk".
+   * </pre>
+   *
+   * <code>string source_disk = 3;</code>
+   * @return The bytes for sourceDisk.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getSourceDiskBytes() {
+    java.lang.Object ref = sourceDisk_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      sourceDisk_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int MODE_FIELD_NUMBER = 4;
+  private int mode_;
+  /**
+   * <pre>
+   * The mode in which to attach this disk.
+   * If not specified, the default is READ_WRITE mode.
+   * Only applicable to data_disks.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode mode = 4;</code>
+   * @return The enum numeric value on the wire for mode.
+   */
+  @java.lang.Override public int getModeValue() {
+    return mode_;
+  }
+  /**
+   * <pre>
+   * The mode in which to attach this disk.
+   * If not specified, the default is READ_WRITE mode.
+   * Only applicable to data_disks.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode mode = 4;</code>
+   * @return The mode.
+   */
+  @java.lang.Override public com.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode getMode() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode result = com.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode.valueOf(mode_);
+    return result == null ? com.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode.UNRECOGNIZED : result;
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(sourceDisk_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, sourceDisk_);
+    }
+    if (mode_ != com.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode.DISK_MODE_UNSPECIFIED.getNumber()) {
+      output.writeEnum(4, mode_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(sourceDisk_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, sourceDisk_);
+    }
+    if (mode_ != com.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode.DISK_MODE_UNSPECIFIED.getNumber()) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeEnumSize(4, mode_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.AttachedDisk)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.AttachedDisk other = (com.google.cloud.tpu.v2alpha1.AttachedDisk) obj;
+
+    if (!getSourceDisk()
+        .equals(other.getSourceDisk())) return false;
+    if (mode_ != other.mode_) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + SOURCE_DISK_FIELD_NUMBER;
+    hash = (53 * hash) + getSourceDisk().hashCode();
+    hash = (37 * hash) + MODE_FIELD_NUMBER;
+    hash = (53 * hash) + mode_;
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.AttachedDisk parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AttachedDisk parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AttachedDisk parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AttachedDisk parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AttachedDisk parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AttachedDisk parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AttachedDisk parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AttachedDisk parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AttachedDisk parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AttachedDisk parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AttachedDisk parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.AttachedDisk parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.AttachedDisk prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A node-attached disk resource.
+   * Next ID: 8;
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.AttachedDisk}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.AttachedDisk)
+      com.google.cloud.tpu.v2alpha1.AttachedDiskOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AttachedDisk_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AttachedDisk_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.AttachedDisk.class, com.google.cloud.tpu.v2alpha1.AttachedDisk.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.AttachedDisk.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      sourceDisk_ = "";
+
+      mode_ = 0;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_AttachedDisk_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.AttachedDisk getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.AttachedDisk.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.AttachedDisk build() {
+      com.google.cloud.tpu.v2alpha1.AttachedDisk result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.AttachedDisk buildPartial() {
+      com.google.cloud.tpu.v2alpha1.AttachedDisk result = new com.google.cloud.tpu.v2alpha1.AttachedDisk(this);
+      result.sourceDisk_ = sourceDisk_;
+      result.mode_ = mode_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.AttachedDisk) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.AttachedDisk)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.AttachedDisk other) {
+      if (other == com.google.cloud.tpu.v2alpha1.AttachedDisk.getDefaultInstance()) return this;
+      if (!other.getSourceDisk().isEmpty()) {
+        sourceDisk_ = other.sourceDisk_;
+        onChanged();
+      }
+      if (other.mode_ != 0) {
+        setModeValue(other.getModeValue());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.AttachedDisk parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.AttachedDisk) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object sourceDisk_ = "";
+    /**
+     * <pre>
+     * Specifies the full path to an existing disk.
+     * For example: "projects/my-project/zones/us-central1-c/disks/my-disk".
+     * </pre>
+     *
+     * <code>string source_disk = 3;</code>
+     * @return The sourceDisk.
+     */
+    public java.lang.String getSourceDisk() {
+      java.lang.Object ref = sourceDisk_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        sourceDisk_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Specifies the full path to an existing disk.
+     * For example: "projects/my-project/zones/us-central1-c/disks/my-disk".
+     * </pre>
+     *
+     * <code>string source_disk = 3;</code>
+     * @return The bytes for sourceDisk.
+     */
+    public com.google.protobuf.ByteString
+        getSourceDiskBytes() {
+      java.lang.Object ref = sourceDisk_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        sourceDisk_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Specifies the full path to an existing disk.
+     * For example: "projects/my-project/zones/us-central1-c/disks/my-disk".
+     * </pre>
+     *
+     * <code>string source_disk = 3;</code>
+     * @param value The sourceDisk to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSourceDisk(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      sourceDisk_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Specifies the full path to an existing disk.
+     * For example: "projects/my-project/zones/us-central1-c/disks/my-disk".
+     * </pre>
+     *
+     * <code>string source_disk = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearSourceDisk() {
+      
+      sourceDisk_ = getDefaultInstance().getSourceDisk();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Specifies the full path to an existing disk.
+     * For example: "projects/my-project/zones/us-central1-c/disks/my-disk".
+     * </pre>
+     *
+     * <code>string source_disk = 3;</code>
+     * @param value The bytes for sourceDisk to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSourceDiskBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      sourceDisk_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int mode_ = 0;
+    /**
+     * <pre>
+     * The mode in which to attach this disk.
+     * If not specified, the default is READ_WRITE mode.
+     * Only applicable to data_disks.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode mode = 4;</code>
+     * @return The enum numeric value on the wire for mode.
+     */
+    @java.lang.Override public int getModeValue() {
+      return mode_;
+    }
+    /**
+     * <pre>
+     * The mode in which to attach this disk.
+     * If not specified, the default is READ_WRITE mode.
+     * Only applicable to data_disks.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode mode = 4;</code>
+     * @param value The enum numeric value on the wire for mode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setModeValue(int value) {
+      
+      mode_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The mode in which to attach this disk.
+     * If not specified, the default is READ_WRITE mode.
+     * Only applicable to data_disks.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode mode = 4;</code>
+     * @return The mode.
+     */
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode getMode() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode result = com.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode.valueOf(mode_);
+      return result == null ? com.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode.UNRECOGNIZED : result;
+    }
+    /**
+     * <pre>
+     * The mode in which to attach this disk.
+     * If not specified, the default is READ_WRITE mode.
+     * Only applicable to data_disks.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode mode = 4;</code>
+     * @param value The mode to set.
+     * @return This builder for chaining.
+     */
+    public Builder setMode(com.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      
+      mode_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The mode in which to attach this disk.
+     * If not specified, the default is READ_WRITE mode.
+     * Only applicable to data_disks.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode mode = 4;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearMode() {
+      
+      mode_ = 0;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.AttachedDisk)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.AttachedDisk)
+  private static final com.google.cloud.tpu.v2alpha1.AttachedDisk DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.AttachedDisk();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.AttachedDisk getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<AttachedDisk>
+      PARSER = new com.google.protobuf.AbstractParser<AttachedDisk>() {
+    @java.lang.Override
+    public AttachedDisk parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new AttachedDisk(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<AttachedDisk> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<AttachedDisk> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.AttachedDisk getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDiskOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDiskOrBuilder.java
new file mode 100644
index 000000000000..e1a6a845faa7
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/AttachedDiskOrBuilder.java
@@ -0,0 +1,54 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface AttachedDiskOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.AttachedDisk)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Specifies the full path to an existing disk.
+   * For example: "projects/my-project/zones/us-central1-c/disks/my-disk".
+   * </pre>
+   *
+   * <code>string source_disk = 3;</code>
+   * @return The sourceDisk.
+   */
+  java.lang.String getSourceDisk();
+  /**
+   * <pre>
+   * Specifies the full path to an existing disk.
+   * For example: "projects/my-project/zones/us-central1-c/disks/my-disk".
+   * </pre>
+   *
+   * <code>string source_disk = 3;</code>
+   * @return The bytes for sourceDisk.
+   */
+  com.google.protobuf.ByteString
+      getSourceDiskBytes();
+
+  /**
+   * <pre>
+   * The mode in which to attach this disk.
+   * If not specified, the default is READ_WRITE mode.
+   * Only applicable to data_disks.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode mode = 4;</code>
+   * @return The enum numeric value on the wire for mode.
+   */
+  int getModeValue();
+  /**
+   * <pre>
+   * The mode in which to attach this disk.
+   * If not specified, the default is READ_WRITE mode.
+   * Only applicable to data_disks.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode mode = 4;</code>
+   * @return The mode.
+   */
+  com.google.cloud.tpu.v2alpha1.AttachedDisk.DiskMode getMode();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CloudTpuProto.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CloudTpuProto.java
new file mode 100644
index 000000000000..17b5f521720a
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CloudTpuProto.java
@@ -0,0 +1,665 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public final class CloudTpuProto {
+  private CloudTpuProto() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v2alpha1_GuestAttributes_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v2alpha1_GuestAttributes_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v2alpha1_GuestAttributesValue_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v2alpha1_GuestAttributesValue_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v2alpha1_GuestAttributesEntry_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v2alpha1_GuestAttributesEntry_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v2alpha1_AttachedDisk_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v2alpha1_AttachedDisk_fieldAccessorTable;
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+    internal_static_google_cloud_tpu_v2alpha1_SchedulingConfig_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v2alpha1_SchedulingConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v2alpha1_NetworkEndpoint_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v2alpha1_NetworkEndpoint_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v2alpha1_AccessConfig_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v2alpha1_AccessConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v2alpha1_NetworkConfig_descriptor;
+  static final 
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+      internal_static_google_cloud_tpu_v2alpha1_NetworkConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_google_cloud_tpu_v2alpha1_ServiceAccount_descriptor;
+  static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v2alpha1_ServiceAccount_fieldAccessorTable;
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+    internal_static_google_cloud_tpu_v2alpha1_Node_descriptor;
+  static final 
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+      internal_static_google_cloud_tpu_v2alpha1_Node_fieldAccessorTable;
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+    internal_static_google_cloud_tpu_v2alpha1_Node_LabelsEntry_descriptor;
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+    internal_static_google_cloud_tpu_v2alpha1_Node_MetadataEntry_descriptor;
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+      internal_static_google_cloud_tpu_v2alpha1_Node_MetadataEntry_fieldAccessorTable;
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+    internal_static_google_cloud_tpu_v2alpha1_ListNodesRequest_descriptor;
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+      internal_static_google_cloud_tpu_v2alpha1_ListNodesRequest_fieldAccessorTable;
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+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_tpu_v2alpha1_ListNodesResponse_fieldAccessorTable;
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+    internal_static_google_cloud_tpu_v2alpha1_GetNodeRequest_descriptor;
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+      internal_static_google_cloud_tpu_v2alpha1_StopNodeRequest_fieldAccessorTable;
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+    internal_static_google_cloud_tpu_v2alpha1_StartNodeRequest_descriptor;
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+      "pha1;tpub\006proto3"
+    };
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+      .internalBuildGeneratedFileFrom(descriptorData,
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+          com.google.api.ClientProto.getDescriptor(),
+          com.google.api.FieldBehaviorProto.getDescriptor(),
+          com.google.api.ResourceProto.getDescriptor(),
+          com.google.longrunning.OperationsProto.getDescriptor(),
+          com.google.protobuf.FieldMaskProto.getDescriptor(),
+          com.google.protobuf.TimestampProto.getDescriptor(),
+        });
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+    internal_static_google_cloud_tpu_v2alpha1_GuestAttributesValue_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_GuestAttributesValue_descriptor,
+        new java.lang.String[] { "Items", });
+    internal_static_google_cloud_tpu_v2alpha1_GuestAttributesEntry_descriptor =
+      getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_tpu_v2alpha1_GuestAttributesEntry_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_GuestAttributesEntry_descriptor,
+        new java.lang.String[] { "Namespace", "Key", "Value", });
+    internal_static_google_cloud_tpu_v2alpha1_AttachedDisk_descriptor =
+      getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_tpu_v2alpha1_AttachedDisk_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_AttachedDisk_descriptor,
+        new java.lang.String[] { "SourceDisk", "Mode", });
+    internal_static_google_cloud_tpu_v2alpha1_SchedulingConfig_descriptor =
+      getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_tpu_v2alpha1_SchedulingConfig_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_SchedulingConfig_descriptor,
+        new java.lang.String[] { "Preemptible", "Reserved", });
+    internal_static_google_cloud_tpu_v2alpha1_NetworkEndpoint_descriptor =
+      getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_tpu_v2alpha1_NetworkEndpoint_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_NetworkEndpoint_descriptor,
+        new java.lang.String[] { "IpAddress", "Port", "AccessConfig", });
+    internal_static_google_cloud_tpu_v2alpha1_AccessConfig_descriptor =
+      getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_tpu_v2alpha1_AccessConfig_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_AccessConfig_descriptor,
+        new java.lang.String[] { "ExternalIp", });
+    internal_static_google_cloud_tpu_v2alpha1_NetworkConfig_descriptor =
+      getDescriptor().getMessageTypes().get(7);
+    internal_static_google_cloud_tpu_v2alpha1_NetworkConfig_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_NetworkConfig_descriptor,
+        new java.lang.String[] { "Network", "Subnetwork", "EnableExternalIps", });
+    internal_static_google_cloud_tpu_v2alpha1_ServiceAccount_descriptor =
+      getDescriptor().getMessageTypes().get(8);
+    internal_static_google_cloud_tpu_v2alpha1_ServiceAccount_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_ServiceAccount_descriptor,
+        new java.lang.String[] { "Email", "Scope", });
+    internal_static_google_cloud_tpu_v2alpha1_Node_descriptor =
+      getDescriptor().getMessageTypes().get(9);
+    internal_static_google_cloud_tpu_v2alpha1_Node_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_Node_descriptor,
+        new java.lang.String[] { "Name", "Description", "AcceleratorType", "State", "HealthDescription", "RuntimeVersion", "NetworkConfig", "CidrBlock", "ServiceAccount", "CreateTime", "SchedulingConfig", "NetworkEndpoints", "Health", "Labels", "Metadata", "Tags", "Id", "DataDisks", "ApiVersion", "Symptoms", "ShieldedInstanceConfig", });
+    internal_static_google_cloud_tpu_v2alpha1_Node_LabelsEntry_descriptor =
+      internal_static_google_cloud_tpu_v2alpha1_Node_descriptor.getNestedTypes().get(0);
+    internal_static_google_cloud_tpu_v2alpha1_Node_LabelsEntry_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_Node_LabelsEntry_descriptor,
+        new java.lang.String[] { "Key", "Value", });
+    internal_static_google_cloud_tpu_v2alpha1_Node_MetadataEntry_descriptor =
+      internal_static_google_cloud_tpu_v2alpha1_Node_descriptor.getNestedTypes().get(1);
+    internal_static_google_cloud_tpu_v2alpha1_Node_MetadataEntry_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_Node_MetadataEntry_descriptor,
+        new java.lang.String[] { "Key", "Value", });
+    internal_static_google_cloud_tpu_v2alpha1_ListNodesRequest_descriptor =
+      getDescriptor().getMessageTypes().get(10);
+    internal_static_google_cloud_tpu_v2alpha1_ListNodesRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_ListNodesRequest_descriptor,
+        new java.lang.String[] { "Parent", "PageSize", "PageToken", });
+    internal_static_google_cloud_tpu_v2alpha1_ListNodesResponse_descriptor =
+      getDescriptor().getMessageTypes().get(11);
+    internal_static_google_cloud_tpu_v2alpha1_ListNodesResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_ListNodesResponse_descriptor,
+        new java.lang.String[] { "Nodes", "NextPageToken", "Unreachable", });
+    internal_static_google_cloud_tpu_v2alpha1_GetNodeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(12);
+    internal_static_google_cloud_tpu_v2alpha1_GetNodeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_GetNodeRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_google_cloud_tpu_v2alpha1_CreateNodeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(13);
+    internal_static_google_cloud_tpu_v2alpha1_CreateNodeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_CreateNodeRequest_descriptor,
+        new java.lang.String[] { "Parent", "NodeId", "Node", });
+    internal_static_google_cloud_tpu_v2alpha1_DeleteNodeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(14);
+    internal_static_google_cloud_tpu_v2alpha1_DeleteNodeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_DeleteNodeRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_google_cloud_tpu_v2alpha1_StopNodeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(15);
+    internal_static_google_cloud_tpu_v2alpha1_StopNodeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_StopNodeRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_google_cloud_tpu_v2alpha1_StartNodeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(16);
+    internal_static_google_cloud_tpu_v2alpha1_StartNodeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_StartNodeRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_google_cloud_tpu_v2alpha1_UpdateNodeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(17);
+    internal_static_google_cloud_tpu_v2alpha1_UpdateNodeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_UpdateNodeRequest_descriptor,
+        new java.lang.String[] { "UpdateMask", "Node", });
+    internal_static_google_cloud_tpu_v2alpha1_ServiceIdentity_descriptor =
+      getDescriptor().getMessageTypes().get(18);
+    internal_static_google_cloud_tpu_v2alpha1_ServiceIdentity_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_ServiceIdentity_descriptor,
+        new java.lang.String[] { "Email", });
+    internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityRequest_descriptor =
+      getDescriptor().getMessageTypes().get(19);
+    internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityRequest_descriptor,
+        new java.lang.String[] { "Parent", });
+    internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityResponse_descriptor =
+      getDescriptor().getMessageTypes().get(20);
+    internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityResponse_descriptor,
+        new java.lang.String[] { "Identity", });
+    internal_static_google_cloud_tpu_v2alpha1_AcceleratorType_descriptor =
+      getDescriptor().getMessageTypes().get(21);
+    internal_static_google_cloud_tpu_v2alpha1_AcceleratorType_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_AcceleratorType_descriptor,
+        new java.lang.String[] { "Name", "Type", });
+    internal_static_google_cloud_tpu_v2alpha1_GetAcceleratorTypeRequest_descriptor =
+      getDescriptor().getMessageTypes().get(22);
+    internal_static_google_cloud_tpu_v2alpha1_GetAcceleratorTypeRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_GetAcceleratorTypeRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_google_cloud_tpu_v2alpha1_ListAcceleratorTypesRequest_descriptor =
+      getDescriptor().getMessageTypes().get(23);
+    internal_static_google_cloud_tpu_v2alpha1_ListAcceleratorTypesRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_ListAcceleratorTypesRequest_descriptor,
+        new java.lang.String[] { "Parent", "PageSize", "PageToken", "Filter", "OrderBy", });
+    internal_static_google_cloud_tpu_v2alpha1_ListAcceleratorTypesResponse_descriptor =
+      getDescriptor().getMessageTypes().get(24);
+    internal_static_google_cloud_tpu_v2alpha1_ListAcceleratorTypesResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_ListAcceleratorTypesResponse_descriptor,
+        new java.lang.String[] { "AcceleratorTypes", "NextPageToken", "Unreachable", });
+    internal_static_google_cloud_tpu_v2alpha1_OperationMetadata_descriptor =
+      getDescriptor().getMessageTypes().get(25);
+    internal_static_google_cloud_tpu_v2alpha1_OperationMetadata_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_OperationMetadata_descriptor,
+        new java.lang.String[] { "CreateTime", "EndTime", "Target", "Verb", "StatusDetail", "CancelRequested", "ApiVersion", });
+    internal_static_google_cloud_tpu_v2alpha1_RuntimeVersion_descriptor =
+      getDescriptor().getMessageTypes().get(26);
+    internal_static_google_cloud_tpu_v2alpha1_RuntimeVersion_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_RuntimeVersion_descriptor,
+        new java.lang.String[] { "Name", "Version", });
+    internal_static_google_cloud_tpu_v2alpha1_GetRuntimeVersionRequest_descriptor =
+      getDescriptor().getMessageTypes().get(27);
+    internal_static_google_cloud_tpu_v2alpha1_GetRuntimeVersionRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_GetRuntimeVersionRequest_descriptor,
+        new java.lang.String[] { "Name", });
+    internal_static_google_cloud_tpu_v2alpha1_ListRuntimeVersionsRequest_descriptor =
+      getDescriptor().getMessageTypes().get(28);
+    internal_static_google_cloud_tpu_v2alpha1_ListRuntimeVersionsRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_ListRuntimeVersionsRequest_descriptor,
+        new java.lang.String[] { "Parent", "PageSize", "PageToken", "Filter", "OrderBy", });
+    internal_static_google_cloud_tpu_v2alpha1_ListRuntimeVersionsResponse_descriptor =
+      getDescriptor().getMessageTypes().get(29);
+    internal_static_google_cloud_tpu_v2alpha1_ListRuntimeVersionsResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_ListRuntimeVersionsResponse_descriptor,
+        new java.lang.String[] { "RuntimeVersions", "NextPageToken", "Unreachable", });
+    internal_static_google_cloud_tpu_v2alpha1_Symptom_descriptor =
+      getDescriptor().getMessageTypes().get(30);
+    internal_static_google_cloud_tpu_v2alpha1_Symptom_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_Symptom_descriptor,
+        new java.lang.String[] { "CreateTime", "SymptomType", "Details", "WorkerId", });
+    internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesRequest_descriptor =
+      getDescriptor().getMessageTypes().get(31);
+    internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesRequest_descriptor,
+        new java.lang.String[] { "Name", "QueryPath", "WorkerIds", });
+    internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesResponse_descriptor =
+      getDescriptor().getMessageTypes().get(32);
+    internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesResponse_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesResponse_descriptor,
+        new java.lang.String[] { "GuestAttributes", });
+    internal_static_google_cloud_tpu_v2alpha1_ShieldedInstanceConfig_descriptor =
+      getDescriptor().getMessageTypes().get(33);
+    internal_static_google_cloud_tpu_v2alpha1_ShieldedInstanceConfig_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_google_cloud_tpu_v2alpha1_ShieldedInstanceConfig_descriptor,
+        new java.lang.String[] { "EnableSecureBoot", });
+    com.google.protobuf.ExtensionRegistry registry =
+        com.google.protobuf.ExtensionRegistry.newInstance();
+    registry.add(com.google.api.ClientProto.defaultHost);
+    registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
+    registry.add(com.google.api.AnnotationsProto.http);
+    registry.add(com.google.api.ClientProto.methodSignature);
+    registry.add(com.google.api.ClientProto.oauthScopes);
+    registry.add(com.google.api.ResourceProto.resource);
+    registry.add(com.google.api.ResourceProto.resourceReference);
+    registry.add(com.google.longrunning.OperationsProto.operationInfo);
+    com.google.protobuf.Descriptors.FileDescriptor
+        .internalUpdateFileDescriptor(descriptor, registry);
+    com.google.api.AnnotationsProto.getDescriptor();
+    com.google.api.ClientProto.getDescriptor();
+    com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.api.ResourceProto.getDescriptor();
+    com.google.longrunning.OperationsProto.getDescriptor();
+    com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.protobuf.TimestampProto.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequest.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequest.java
new file mode 100644
index 000000000000..35b5c40fa86a
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequest.java
@@ -0,0 +1,997 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Request for [CreateNode][google.cloud.tpu.v2alpha1.Tpu.CreateNode].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.CreateNodeRequest}
+ */
+public final class CreateNodeRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.CreateNodeRequest)
+    CreateNodeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use CreateNodeRequest.newBuilder() to construct.
+  private CreateNodeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private CreateNodeRequest() {
+    parent_ = "";
+    nodeId_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new CreateNodeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private CreateNodeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            parent_ = s;
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            nodeId_ = s;
+            break;
+          }
+          case 26: {
+            com.google.cloud.tpu.v2alpha1.Node.Builder subBuilder = null;
+            if (node_ != null) {
+              subBuilder = node_.toBuilder();
+            }
+            node_ = input.readMessage(com.google.cloud.tpu.v2alpha1.Node.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(node_);
+              node_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_CreateNodeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_CreateNodeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.CreateNodeRequest.class, com.google.cloud.tpu.v2alpha1.CreateNodeRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int NODE_ID_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nodeId_;
+  /**
+   * <pre>
+   * The unqualified resource name.
+   * </pre>
+   *
+   * <code>string node_id = 2;</code>
+   * @return The nodeId.
+   */
+  @java.lang.Override
+  public java.lang.String getNodeId() {
+    java.lang.Object ref = nodeId_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nodeId_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The unqualified resource name.
+   * </pre>
+   *
+   * <code>string node_id = 2;</code>
+   * @return The bytes for nodeId.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNodeIdBytes() {
+    java.lang.Object ref = nodeId_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      nodeId_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int NODE_FIELD_NUMBER = 3;
+  private com.google.cloud.tpu.v2alpha1.Node node_;
+  /**
+   * <pre>
+   * Required. The node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return Whether the node field is set.
+   */
+  @java.lang.Override
+  public boolean hasNode() {
+    return node_ != null;
+  }
+  /**
+   * <pre>
+   * Required. The node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The node.
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.Node getNode() {
+    return node_ == null ? com.google.cloud.tpu.v2alpha1.Node.getDefaultInstance() : node_;
+  }
+  /**
+   * <pre>
+   * Required. The node.
+   * </pre>
+   *
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+  public int hashCode() {
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+    return PARSER.parseFrom(data);
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+  public static com.google.cloud.tpu.v2alpha1.CreateNodeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
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+  public static com.google.cloud.tpu.v2alpha1.CreateNodeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
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+  public static com.google.cloud.tpu.v2alpha1.CreateNodeRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.CreateNodeRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v2alpha1.CreateNodeRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+  public static com.google.cloud.tpu.v2alpha1.CreateNodeRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.CreateNodeRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.CreateNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.CreateNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.CreateNodeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for [CreateNode][google.cloud.tpu.v2alpha1.Tpu.CreateNode].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.CreateNodeRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.CreateNodeRequest)
+      com.google.cloud.tpu.v2alpha1.CreateNodeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_CreateNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
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+
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+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
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+    @java.lang.Override
+    public Builder clear() {
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+      parent_ = "";
+
+      nodeId_ = "";
+
+      if (nodeBuilder_ == null) {
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+        nodeBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_CreateNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.CreateNodeRequest getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.CreateNodeRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.CreateNodeRequest build() {
+      com.google.cloud.tpu.v2alpha1.CreateNodeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.CreateNodeRequest buildPartial() {
+      com.google.cloud.tpu.v2alpha1.CreateNodeRequest result = new com.google.cloud.tpu.v2alpha1.CreateNodeRequest(this);
+      result.parent_ = parent_;
+      result.nodeId_ = nodeId_;
+      if (nodeBuilder_ == null) {
+        result.node_ = node_;
+      } else {
+        result.node_ = nodeBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
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+        java.lang.Object value) {
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+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
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+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
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+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    @java.lang.Override
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+      if (other instanceof com.google.cloud.tpu.v2alpha1.CreateNodeRequest) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.CreateNodeRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.CreateNodeRequest other) {
+      if (other == com.google.cloud.tpu.v2alpha1.CreateNodeRequest.getDefaultInstance()) return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (!other.getNodeId().isEmpty()) {
+        nodeId_ = other.nodeId_;
+        onChanged();
+      }
+      if (other.hasNode()) {
+        mergeNode(other.getNode());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.CreateNodeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.CreateNodeRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
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+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for parent.
+     */
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+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
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+                (java.lang.String) ref);
+        parent_ = b;
+        return b;
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+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+      
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object nodeId_ = "";
+    /**
+     * <pre>
+     * The unqualified resource name.
+     * </pre>
+     *
+     * <code>string node_id = 2;</code>
+     * @return The nodeId.
+     */
+    public java.lang.String getNodeId() {
+      java.lang.Object ref = nodeId_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nodeId_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The unqualified resource name.
+     * </pre>
+     *
+     * <code>string node_id = 2;</code>
+     * @return The bytes for nodeId.
+     */
+    public com.google.protobuf.ByteString
+        getNodeIdBytes() {
+      java.lang.Object ref = nodeId_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        nodeId_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The unqualified resource name.
+     * </pre>
+     *
+     * <code>string node_id = 2;</code>
+     * @param value The nodeId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNodeId(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      nodeId_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The unqualified resource name.
+     * </pre>
+     *
+     * <code>string node_id = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNodeId() {
+      
+      nodeId_ = getDefaultInstance().getNodeId();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The unqualified resource name.
+     * </pre>
+     *
+     * <code>string node_id = 2;</code>
+     * @param value The bytes for nodeId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNodeIdBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      nodeId_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.tpu.v2alpha1.Node node_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.Node, com.google.cloud.tpu.v2alpha1.Node.Builder, com.google.cloud.tpu.v2alpha1.NodeOrBuilder> nodeBuilder_;
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return Whether the node field is set.
+     */
+    public boolean hasNode() {
+      return nodeBuilder_ != null || node_ != null;
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return The node.
+     */
+    public com.google.cloud.tpu.v2alpha1.Node getNode() {
+      if (nodeBuilder_ == null) {
+        return node_ == null ? com.google.cloud.tpu.v2alpha1.Node.getDefaultInstance() : node_;
+      } else {
+        return nodeBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder setNode(com.google.cloud.tpu.v2alpha1.Node value) {
+      if (nodeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        node_ = value;
+        onChanged();
+      } else {
+        nodeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder setNode(
+        com.google.cloud.tpu.v2alpha1.Node.Builder builderForValue) {
+      if (nodeBuilder_ == null) {
+        node_ = builderForValue.build();
+        onChanged();
+      } else {
+        nodeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder mergeNode(com.google.cloud.tpu.v2alpha1.Node value) {
+      if (nodeBuilder_ == null) {
+        if (node_ != null) {
+          node_ =
+            com.google.cloud.tpu.v2alpha1.Node.newBuilder(node_).mergeFrom(value).buildPartial();
+        } else {
+          node_ = value;
+        }
+        onChanged();
+      } else {
+        nodeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder clearNode() {
+      if (nodeBuilder_ == null) {
+        node_ = null;
+        onChanged();
+      } else {
+        node_ = null;
+        nodeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.Node.Builder getNodeBuilder() {
+      
+      onChanged();
+      return getNodeFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.NodeOrBuilder getNodeOrBuilder() {
+      if (nodeBuilder_ != null) {
+        return nodeBuilder_.getMessageOrBuilder();
+      } else {
+        return node_ == null ?
+            com.google.cloud.tpu.v2alpha1.Node.getDefaultInstance() : node_;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.Node, com.google.cloud.tpu.v2alpha1.Node.Builder, com.google.cloud.tpu.v2alpha1.NodeOrBuilder> 
+        getNodeFieldBuilder() {
+      if (nodeBuilder_ == null) {
+        nodeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.Node, com.google.cloud.tpu.v2alpha1.Node.Builder, com.google.cloud.tpu.v2alpha1.NodeOrBuilder>(
+                getNode(),
+                getParentForChildren(),
+                isClean());
+        node_ = null;
+      }
+      return nodeBuilder_;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.CreateNodeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.CreateNodeRequest)
+  private static final com.google.cloud.tpu.v2alpha1.CreateNodeRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.CreateNodeRequest();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.CreateNodeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<CreateNodeRequest>
+      PARSER = new com.google.protobuf.AbstractParser<CreateNodeRequest>() {
+    @java.lang.Override
+    public CreateNodeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new CreateNodeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<CreateNodeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<CreateNodeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.CreateNodeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequestOrBuilder.java
new file mode 100644
index 000000000000..58cfbcf11c19
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/CreateNodeRequestOrBuilder.java
@@ -0,0 +1,76 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface CreateNodeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.CreateNodeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString
+      getParentBytes();
+
+  /**
+   * <pre>
+   * The unqualified resource name.
+   * </pre>
+   *
+   * <code>string node_id = 2;</code>
+   * @return The nodeId.
+   */
+  java.lang.String getNodeId();
+  /**
+   * <pre>
+   * The unqualified resource name.
+   * </pre>
+   *
+   * <code>string node_id = 2;</code>
+   * @return The bytes for nodeId.
+   */
+  com.google.protobuf.ByteString
+      getNodeIdBytes();
+
+  /**
+   * <pre>
+   * Required. The node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return Whether the node field is set.
+   */
+  boolean hasNode();
+  /**
+   * <pre>
+   * Required. The node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The node.
+   */
+  com.google.cloud.tpu.v2alpha1.Node getNode();
+  /**
+   * <pre>
+   * Required. The node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node node = 3 [(.google.api.field_behavior) = REQUIRED];</code>
+   */
+  com.google.cloud.tpu.v2alpha1.NodeOrBuilder getNodeOrBuilder();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequest.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequest.java
new file mode 100644
index 000000000000..c64ddd447658
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequest.java
@@ -0,0 +1,595 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Request for [DeleteNode][google.cloud.tpu.v2alpha1.Tpu.DeleteNode].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.DeleteNodeRequest}
+ */
+public final class DeleteNodeRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.DeleteNodeRequest)
+    DeleteNodeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use DeleteNodeRequest.newBuilder() to construct.
+  private DeleteNodeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private DeleteNodeRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new DeleteNodeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private DeleteNodeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_DeleteNodeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_DeleteNodeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.DeleteNodeRequest.class, com.google.cloud.tpu.v2alpha1.DeleteNodeRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.DeleteNodeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.DeleteNodeRequest other = (com.google.cloud.tpu.v2alpha1.DeleteNodeRequest) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.DeleteNodeRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.DeleteNodeRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.DeleteNodeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.DeleteNodeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.DeleteNodeRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.DeleteNodeRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.DeleteNodeRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.DeleteNodeRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.DeleteNodeRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.DeleteNodeRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.DeleteNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.DeleteNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.DeleteNodeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for [DeleteNode][google.cloud.tpu.v2alpha1.Tpu.DeleteNode].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.DeleteNodeRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.DeleteNodeRequest)
+      com.google.cloud.tpu.v2alpha1.DeleteNodeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_DeleteNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_DeleteNodeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.DeleteNodeRequest.class, com.google.cloud.tpu.v2alpha1.DeleteNodeRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.DeleteNodeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_DeleteNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.DeleteNodeRequest getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.DeleteNodeRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.DeleteNodeRequest build() {
+      com.google.cloud.tpu.v2alpha1.DeleteNodeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.DeleteNodeRequest buildPartial() {
+      com.google.cloud.tpu.v2alpha1.DeleteNodeRequest result = new com.google.cloud.tpu.v2alpha1.DeleteNodeRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.DeleteNodeRequest) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.DeleteNodeRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.DeleteNodeRequest other) {
+      if (other == com.google.cloud.tpu.v2alpha1.DeleteNodeRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.DeleteNodeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.DeleteNodeRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.DeleteNodeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.DeleteNodeRequest)
+  private static final com.google.cloud.tpu.v2alpha1.DeleteNodeRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.DeleteNodeRequest();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.DeleteNodeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<DeleteNodeRequest>
+      PARSER = new com.google.protobuf.AbstractParser<DeleteNodeRequest>() {
+    @java.lang.Override
+    public DeleteNodeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new DeleteNodeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<DeleteNodeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<DeleteNodeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.DeleteNodeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequestOrBuilder.java
new file mode 100644
index 000000000000..0c6333da567a
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/DeleteNodeRequestOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface DeleteNodeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.DeleteNodeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequest.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequest.java
new file mode 100644
index 000000000000..e50c9990a816
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequest.java
@@ -0,0 +1,597 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Request for
+ * [GenerateServiceIdentity][google.cloud.tpu.v2alpha1.Tpu.GenerateServiceIdentity].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest}
+ */
+public final class GenerateServiceIdentityRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest)
+    GenerateServiceIdentityRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GenerateServiceIdentityRequest.newBuilder() to construct.
+  private GenerateServiceIdentityRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GenerateServiceIdentityRequest() {
+    parent_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GenerateServiceIdentityRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GenerateServiceIdentityRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
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+        switch (tag) {
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+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            parent_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest.class, com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest.Builder.class);
+  }
+
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+  private volatile java.lang.Object parent_;
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
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+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
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+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
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+      parent_ = b;
+      return b;
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+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
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+    unknownFields.writeTo(output);
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+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
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+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest other = (com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest) obj;
+
+    if (!getParent()
+        .equals(other.getParent())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PARENT_FIELD_NUMBER;
+    hash = (53 * hash) + getParent().hashCode();
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+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for
+   * [GenerateServiceIdentity][google.cloud.tpu.v2alpha1.Tpu.GenerateServiceIdentity].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest)
+      com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest.class, com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      parent_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest build() {
+      com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest buildPartial() {
+      com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest result = new com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest(this);
+      result.parent_ = parent_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest other) {
+      if (other == com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest.getDefaultInstance()) return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
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+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
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+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
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+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString
+        getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
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+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+      
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest)
+  private static final com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GenerateServiceIdentityRequest>
+      PARSER = new com.google.protobuf.AbstractParser<GenerateServiceIdentityRequest>() {
+    @java.lang.Override
+    public GenerateServiceIdentityRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GenerateServiceIdentityRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GenerateServiceIdentityRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GenerateServiceIdentityRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequestOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequestOrBuilder.java
new file mode 100644
index 000000000000..d8435479991d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityRequestOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface GenerateServiceIdentityRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString
+      getParentBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponse.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponse.java
new file mode 100644
index 000000000000..5a74e3581370
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponse.java
@@ -0,0 +1,667 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Response for
+ * [GenerateServiceIdentity][google.cloud.tpu.v2alpha1.Tpu.GenerateServiceIdentity].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse}
+ */
+public final class GenerateServiceIdentityResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse)
+    GenerateServiceIdentityResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GenerateServiceIdentityResponse.newBuilder() to construct.
+  private GenerateServiceIdentityResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GenerateServiceIdentityResponse() {
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GenerateServiceIdentityResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GenerateServiceIdentityResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            com.google.cloud.tpu.v2alpha1.ServiceIdentity.Builder subBuilder = null;
+            if (identity_ != null) {
+              subBuilder = identity_.toBuilder();
+            }
+            identity_ = input.readMessage(com.google.cloud.tpu.v2alpha1.ServiceIdentity.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(identity_);
+              identity_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse.class, com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse.Builder.class);
+  }
+
+  public static final int IDENTITY_FIELD_NUMBER = 1;
+  private com.google.cloud.tpu.v2alpha1.ServiceIdentity identity_;
+  /**
+   * <pre>
+   * ServiceIdentity that was created or retrieved.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+   * @return Whether the identity field is set.
+   */
+  @java.lang.Override
+  public boolean hasIdentity() {
+    return identity_ != null;
+  }
+  /**
+   * <pre>
+   * ServiceIdentity that was created or retrieved.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+   * @return The identity.
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ServiceIdentity getIdentity() {
+    return identity_ == null ? com.google.cloud.tpu.v2alpha1.ServiceIdentity.getDefaultInstance() : identity_;
+  }
+  /**
+   * <pre>
+   * ServiceIdentity that was created or retrieved.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ServiceIdentityOrBuilder getIdentityOrBuilder() {
+    return getIdentity();
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (identity_ != null) {
+      output.writeMessage(1, getIdentity());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (identity_ != null) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(1, getIdentity());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse other = (com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse) obj;
+
+    if (hasIdentity() != other.hasIdentity()) return false;
+    if (hasIdentity()) {
+      if (!getIdentity()
+          .equals(other.getIdentity())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasIdentity()) {
+      hash = (37 * hash) + IDENTITY_FIELD_NUMBER;
+      hash = (53 * hash) + getIdentity().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Response for
+   * [GenerateServiceIdentity][google.cloud.tpu.v2alpha1.Tpu.GenerateServiceIdentity].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse)
+      com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse.class, com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (identityBuilder_ == null) {
+        identity_ = null;
+      } else {
+        identity_ = null;
+        identityBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GenerateServiceIdentityResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse build() {
+      com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse buildPartial() {
+      com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse result = new com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse(this);
+      if (identityBuilder_ == null) {
+        result.identity_ = identity_;
+      } else {
+        result.identity_ = identityBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse other) {
+      if (other == com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse.getDefaultInstance()) return this;
+      if (other.hasIdentity()) {
+        mergeIdentity(other.getIdentity());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.cloud.tpu.v2alpha1.ServiceIdentity identity_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.ServiceIdentity, com.google.cloud.tpu.v2alpha1.ServiceIdentity.Builder, com.google.cloud.tpu.v2alpha1.ServiceIdentityOrBuilder> identityBuilder_;
+    /**
+     * <pre>
+     * ServiceIdentity that was created or retrieved.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+     * @return Whether the identity field is set.
+     */
+    public boolean hasIdentity() {
+      return identityBuilder_ != null || identity_ != null;
+    }
+    /**
+     * <pre>
+     * ServiceIdentity that was created or retrieved.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+     * @return The identity.
+     */
+    public com.google.cloud.tpu.v2alpha1.ServiceIdentity getIdentity() {
+      if (identityBuilder_ == null) {
+        return identity_ == null ? com.google.cloud.tpu.v2alpha1.ServiceIdentity.getDefaultInstance() : identity_;
+      } else {
+        return identityBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * ServiceIdentity that was created or retrieved.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+     */
+    public Builder setIdentity(com.google.cloud.tpu.v2alpha1.ServiceIdentity value) {
+      if (identityBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        identity_ = value;
+        onChanged();
+      } else {
+        identityBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * ServiceIdentity that was created or retrieved.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+     */
+    public Builder setIdentity(
+        com.google.cloud.tpu.v2alpha1.ServiceIdentity.Builder builderForValue) {
+      if (identityBuilder_ == null) {
+        identity_ = builderForValue.build();
+        onChanged();
+      } else {
+        identityBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * ServiceIdentity that was created or retrieved.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+     */
+    public Builder mergeIdentity(com.google.cloud.tpu.v2alpha1.ServiceIdentity value) {
+      if (identityBuilder_ == null) {
+        if (identity_ != null) {
+          identity_ =
+            com.google.cloud.tpu.v2alpha1.ServiceIdentity.newBuilder(identity_).mergeFrom(value).buildPartial();
+        } else {
+          identity_ = value;
+        }
+        onChanged();
+      } else {
+        identityBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * ServiceIdentity that was created or retrieved.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+     */
+    public Builder clearIdentity() {
+      if (identityBuilder_ == null) {
+        identity_ = null;
+        onChanged();
+      } else {
+        identity_ = null;
+        identityBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * ServiceIdentity that was created or retrieved.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.ServiceIdentity.Builder getIdentityBuilder() {
+      
+      onChanged();
+      return getIdentityFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * ServiceIdentity that was created or retrieved.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.ServiceIdentityOrBuilder getIdentityOrBuilder() {
+      if (identityBuilder_ != null) {
+        return identityBuilder_.getMessageOrBuilder();
+      } else {
+        return identity_ == null ?
+            com.google.cloud.tpu.v2alpha1.ServiceIdentity.getDefaultInstance() : identity_;
+      }
+    }
+    /**
+     * <pre>
+     * ServiceIdentity that was created or retrieved.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.ServiceIdentity, com.google.cloud.tpu.v2alpha1.ServiceIdentity.Builder, com.google.cloud.tpu.v2alpha1.ServiceIdentityOrBuilder> 
+        getIdentityFieldBuilder() {
+      if (identityBuilder_ == null) {
+        identityBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.ServiceIdentity, com.google.cloud.tpu.v2alpha1.ServiceIdentity.Builder, com.google.cloud.tpu.v2alpha1.ServiceIdentityOrBuilder>(
+                getIdentity(),
+                getParentForChildren(),
+                isClean());
+        identity_ = null;
+      }
+      return identityBuilder_;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse)
+  private static final com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GenerateServiceIdentityResponse>
+      PARSER = new com.google.protobuf.AbstractParser<GenerateServiceIdentityResponse>() {
+    @java.lang.Override
+    public GenerateServiceIdentityResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GenerateServiceIdentityResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GenerateServiceIdentityResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GenerateServiceIdentityResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponseOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponseOrBuilder.java
new file mode 100644
index 000000000000..60569c6ed088
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GenerateServiceIdentityResponseOrBuilder.java
@@ -0,0 +1,36 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface GenerateServiceIdentityResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * ServiceIdentity that was created or retrieved.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+   * @return Whether the identity field is set.
+   */
+  boolean hasIdentity();
+  /**
+   * <pre>
+   * ServiceIdentity that was created or retrieved.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+   * @return The identity.
+   */
+  com.google.cloud.tpu.v2alpha1.ServiceIdentity getIdentity();
+  /**
+   * <pre>
+   * ServiceIdentity that was created or retrieved.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ServiceIdentity identity = 1;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.ServiceIdentityOrBuilder getIdentityOrBuilder();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequest.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequest.java
new file mode 100644
index 000000000000..5d94643faa71
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequest.java
@@ -0,0 +1,597 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Request for
+ * [GetAcceleratorType][google.cloud.tpu.v2alpha1.Tpu.GetAcceleratorType].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest}
+ */
+public final class GetAcceleratorTypeRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest)
+    GetAcceleratorTypeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GetAcceleratorTypeRequest.newBuilder() to construct.
+  private GetAcceleratorTypeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GetAcceleratorTypeRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GetAcceleratorTypeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GetAcceleratorTypeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetAcceleratorTypeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetAcceleratorTypeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest.class, com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest other = (com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for
+   * [GetAcceleratorType][google.cloud.tpu.v2alpha1.Tpu.GetAcceleratorType].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest)
+      com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetAcceleratorTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetAcceleratorTypeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest.class, com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetAcceleratorTypeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest build() {
+      com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest buildPartial() {
+      com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest result = new com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest other) {
+      if (other == com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest)
+  private static final com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetAcceleratorTypeRequest>
+      PARSER = new com.google.protobuf.AbstractParser<GetAcceleratorTypeRequest>() {
+    @java.lang.Override
+    public GetAcceleratorTypeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GetAcceleratorTypeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GetAcceleratorTypeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetAcceleratorTypeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequestOrBuilder.java
new file mode 100644
index 000000000000..a52d77c225d3
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetAcceleratorTypeRequestOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface GetAcceleratorTypeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequest.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequest.java
new file mode 100644
index 000000000000..682bd21138c6
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequest.java
@@ -0,0 +1,1023 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Request for
+ * [GetGuestAttributes][google.cloud.tpu.v2alpha1.Tpu.GetGuestAttributes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.GetGuestAttributesRequest}
+ */
+public final class GetGuestAttributesRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.GetGuestAttributesRequest)
+    GetGuestAttributesRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GetGuestAttributesRequest.newBuilder() to construct.
+  private GetGuestAttributesRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GetGuestAttributesRequest() {
+    name_ = "";
+    queryPath_ = "";
+    workerIds_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GetGuestAttributesRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GetGuestAttributesRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            queryPath_ = s;
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+            if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+              workerIds_ = new com.google.protobuf.LazyStringArrayList();
+              mutable_bitField0_ |= 0x00000001;
+            }
+            workerIds_.add(s);
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        workerIds_ = workerIds_.getUnmodifiableView();
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest.class, com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int QUERY_PATH_FIELD_NUMBER = 2;
+  private volatile java.lang.Object queryPath_;
+  /**
+   * <pre>
+   * The guest attributes path to be queried.
+   * </pre>
+   *
+   * <code>string query_path = 2;</code>
+   * @return The queryPath.
+   */
+  @java.lang.Override
+  public java.lang.String getQueryPath() {
+    java.lang.Object ref = queryPath_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      queryPath_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The guest attributes path to be queried.
+   * </pre>
+   *
+   * <code>string query_path = 2;</code>
+   * @return The bytes for queryPath.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getQueryPathBytes() {
+    java.lang.Object ref = queryPath_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      queryPath_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int WORKER_IDS_FIELD_NUMBER = 3;
+  private com.google.protobuf.LazyStringList workerIds_;
+  /**
+   * <pre>
+   * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+   * returned.
+   * </pre>
+   *
+   * <code>repeated string worker_ids = 3;</code>
+   * @return A list containing the workerIds.
+   */
+  public com.google.protobuf.ProtocolStringList
+      getWorkerIdsList() {
+    return workerIds_;
+  }
+  /**
+   * <pre>
+   * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+   * returned.
+   * </pre>
+   *
+   * <code>repeated string worker_ids = 3;</code>
+   * @return The count of workerIds.
+   */
+  public int getWorkerIdsCount() {
+    return workerIds_.size();
+  }
+  /**
+   * <pre>
+   * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+   * returned.
+   * </pre>
+   *
+   * <code>repeated string worker_ids = 3;</code>
+   * @param index The index of the element to return.
+   * @return The workerIds at the given index.
+   */
+  public java.lang.String getWorkerIds(int index) {
+    return workerIds_.get(index);
+  }
+  /**
+   * <pre>
+   * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+   * returned.
+   * </pre>
+   *
+   * <code>repeated string worker_ids = 3;</code>
+   * @param index The index of the value to return.
+   * @return The bytes of the workerIds at the given index.
+   */
+  public com.google.protobuf.ByteString
+      getWorkerIdsBytes(int index) {
+    return workerIds_.getByteString(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(queryPath_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, queryPath_);
+    }
+    for (int i = 0; i < workerIds_.size(); i++) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, workerIds_.getRaw(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(queryPath_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, queryPath_);
+    }
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+      for (int i = 0; i < workerIds_.size(); i++) {
+        dataSize += computeStringSizeNoTag(workerIds_.getRaw(i));
+      }
+      size += dataSize;
+      size += 1 * getWorkerIdsList().size();
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest other = (com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!getQueryPath()
+        .equals(other.getQueryPath())) return false;
+    if (!getWorkerIdsList()
+        .equals(other.getWorkerIdsList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + QUERY_PATH_FIELD_NUMBER;
+    hash = (53 * hash) + getQueryPath().hashCode();
+    if (getWorkerIdsCount() > 0) {
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+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for
+   * [GetGuestAttributes][google.cloud.tpu.v2alpha1.Tpu.GetGuestAttributes].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.GetGuestAttributesRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.GetGuestAttributesRequest)
+      com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest.class, com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      queryPath_ = "";
+
+      workerIds_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000001);
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest build() {
+      com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest buildPartial() {
+      com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest result = new com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest(this);
+      int from_bitField0_ = bitField0_;
+      result.name_ = name_;
+      result.queryPath_ = queryPath_;
+      if (((bitField0_ & 0x00000001) != 0)) {
+        workerIds_ = workerIds_.getUnmodifiableView();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      }
+      result.workerIds_ = workerIds_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest other) {
+      if (other == com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getQueryPath().isEmpty()) {
+        queryPath_ = other.queryPath_;
+        onChanged();
+      }
+      if (!other.workerIds_.isEmpty()) {
+        if (workerIds_.isEmpty()) {
+          workerIds_ = other.workerIds_;
+          bitField0_ = (bitField0_ & ~0x00000001);
+        } else {
+          ensureWorkerIdsIsMutable();
+          workerIds_.addAll(other.workerIds_);
+        }
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+    private int bitField0_;
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object queryPath_ = "";
+    /**
+     * <pre>
+     * The guest attributes path to be queried.
+     * </pre>
+     *
+     * <code>string query_path = 2;</code>
+     * @return The queryPath.
+     */
+    public java.lang.String getQueryPath() {
+      java.lang.Object ref = queryPath_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        queryPath_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The guest attributes path to be queried.
+     * </pre>
+     *
+     * <code>string query_path = 2;</code>
+     * @return The bytes for queryPath.
+     */
+    public com.google.protobuf.ByteString
+        getQueryPathBytes() {
+      java.lang.Object ref = queryPath_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        queryPath_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The guest attributes path to be queried.
+     * </pre>
+     *
+     * <code>string query_path = 2;</code>
+     * @param value The queryPath to set.
+     * @return This builder for chaining.
+     */
+    public Builder setQueryPath(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      queryPath_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The guest attributes path to be queried.
+     * </pre>
+     *
+     * <code>string query_path = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearQueryPath() {
+      
+      queryPath_ = getDefaultInstance().getQueryPath();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The guest attributes path to be queried.
+     * </pre>
+     *
+     * <code>string query_path = 2;</code>
+     * @param value The bytes for queryPath to set.
+     * @return This builder for chaining.
+     */
+    public Builder setQueryPathBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      queryPath_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.LazyStringList workerIds_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+    private void ensureWorkerIdsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        workerIds_ = new com.google.protobuf.LazyStringArrayList(workerIds_);
+        bitField0_ |= 0x00000001;
+       }
+    }
+    /**
+     * <pre>
+     * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+     * returned.
+     * </pre>
+     *
+     * <code>repeated string worker_ids = 3;</code>
+     * @return A list containing the workerIds.
+     */
+    public com.google.protobuf.ProtocolStringList
+        getWorkerIdsList() {
+      return workerIds_.getUnmodifiableView();
+    }
+    /**
+     * <pre>
+     * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+     * returned.
+     * </pre>
+     *
+     * <code>repeated string worker_ids = 3;</code>
+     * @return The count of workerIds.
+     */
+    public int getWorkerIdsCount() {
+      return workerIds_.size();
+    }
+    /**
+     * <pre>
+     * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+     * returned.
+     * </pre>
+     *
+     * <code>repeated string worker_ids = 3;</code>
+     * @param index The index of the element to return.
+     * @return The workerIds at the given index.
+     */
+    public java.lang.String getWorkerIds(int index) {
+      return workerIds_.get(index);
+    }
+    /**
+     * <pre>
+     * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+     * returned.
+     * </pre>
+     *
+     * <code>repeated string worker_ids = 3;</code>
+     * @param index The index of the value to return.
+     * @return The bytes of the workerIds at the given index.
+     */
+    public com.google.protobuf.ByteString
+        getWorkerIdsBytes(int index) {
+      return workerIds_.getByteString(index);
+    }
+    /**
+     * <pre>
+     * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+     * returned.
+     * </pre>
+     *
+     * <code>repeated string worker_ids = 3;</code>
+     * @param index The index to set the value at.
+     * @param value The workerIds to set.
+     * @return This builder for chaining.
+     */
+    public Builder setWorkerIds(
+        int index, java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureWorkerIdsIsMutable();
+      workerIds_.set(index, value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+     * returned.
+     * </pre>
+     *
+     * <code>repeated string worker_ids = 3;</code>
+     * @param value The workerIds to add.
+     * @return This builder for chaining.
+     */
+    public Builder addWorkerIds(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureWorkerIdsIsMutable();
+      workerIds_.add(value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+     * returned.
+     * </pre>
+     *
+     * <code>repeated string worker_ids = 3;</code>
+     * @param values The workerIds to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllWorkerIds(
+        java.lang.Iterable<java.lang.String> values) {
+      ensureWorkerIdsIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(
+          values, workerIds_);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+     * returned.
+     * </pre>
+     *
+     * <code>repeated string worker_ids = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearWorkerIds() {
+      workerIds_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000001);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+     * returned.
+     * </pre>
+     *
+     * <code>repeated string worker_ids = 3;</code>
+     * @param value The bytes of the workerIds to add.
+     * @return This builder for chaining.
+     */
+    public Builder addWorkerIdsBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      ensureWorkerIdsIsMutable();
+      workerIds_.add(value);
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.GetGuestAttributesRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.GetGuestAttributesRequest)
+  private static final com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetGuestAttributesRequest>
+      PARSER = new com.google.protobuf.AbstractParser<GetGuestAttributesRequest>() {
+    @java.lang.Override
+    public GetGuestAttributesRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GetGuestAttributesRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GetGuestAttributesRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetGuestAttributesRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequestOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequestOrBuilder.java
new file mode 100644
index 000000000000..aef6790d7f31
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesRequestOrBuilder.java
@@ -0,0 +1,94 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface GetGuestAttributesRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.GetGuestAttributesRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+
+  /**
+   * <pre>
+   * The guest attributes path to be queried.
+   * </pre>
+   *
+   * <code>string query_path = 2;</code>
+   * @return The queryPath.
+   */
+  java.lang.String getQueryPath();
+  /**
+   * <pre>
+   * The guest attributes path to be queried.
+   * </pre>
+   *
+   * <code>string query_path = 2;</code>
+   * @return The bytes for queryPath.
+   */
+  com.google.protobuf.ByteString
+      getQueryPathBytes();
+
+  /**
+   * <pre>
+   * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+   * returned.
+   * </pre>
+   *
+   * <code>repeated string worker_ids = 3;</code>
+   * @return A list containing the workerIds.
+   */
+  java.util.List<java.lang.String>
+      getWorkerIdsList();
+  /**
+   * <pre>
+   * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+   * returned.
+   * </pre>
+   *
+   * <code>repeated string worker_ids = 3;</code>
+   * @return The count of workerIds.
+   */
+  int getWorkerIdsCount();
+  /**
+   * <pre>
+   * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+   * returned.
+   * </pre>
+   *
+   * <code>repeated string worker_ids = 3;</code>
+   * @param index The index of the element to return.
+   * @return The workerIds at the given index.
+   */
+  java.lang.String getWorkerIds(int index);
+  /**
+   * <pre>
+   * The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+   * returned.
+   * </pre>
+   *
+   * <code>repeated string worker_ids = 3;</code>
+   * @param index The index of the value to return.
+   * @return The bytes of the workerIds at the given index.
+   */
+  com.google.protobuf.ByteString
+      getWorkerIdsBytes(int index);
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponse.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponse.java
new file mode 100644
index 000000000000..0690bd2a3864
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponse.java
@@ -0,0 +1,874 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Response for
+ * [GetGuestAttributes][google.cloud.tpu.v2alpha1.Tpu.GetGuestAttributes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.GetGuestAttributesResponse}
+ */
+public final class GetGuestAttributesResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.GetGuestAttributesResponse)
+    GetGuestAttributesResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GetGuestAttributesResponse.newBuilder() to construct.
+  private GetGuestAttributesResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GetGuestAttributesResponse() {
+    guestAttributes_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GetGuestAttributesResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GetGuestAttributesResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+              guestAttributes_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.GuestAttributes>();
+              mutable_bitField0_ |= 0x00000001;
+            }
+            guestAttributes_.add(
+                input.readMessage(com.google.cloud.tpu.v2alpha1.GuestAttributes.parser(), extensionRegistry));
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        guestAttributes_ = java.util.Collections.unmodifiableList(guestAttributes_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse.class, com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse.Builder.class);
+  }
+
+  public static final int GUEST_ATTRIBUTES_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.tpu.v2alpha1.GuestAttributes> guestAttributes_;
+  /**
+   * <pre>
+   * The guest attributes for the TPU workers.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.tpu.v2alpha1.GuestAttributes> getGuestAttributesList() {
+    return guestAttributes_;
+  }
+  /**
+   * <pre>
+   * The guest attributes for the TPU workers.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.tpu.v2alpha1.GuestAttributesOrBuilder> 
+      getGuestAttributesOrBuilderList() {
+    return guestAttributes_;
+  }
+  /**
+   * <pre>
+   * The guest attributes for the TPU workers.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+   */
+  @java.lang.Override
+  public int getGuestAttributesCount() {
+    return guestAttributes_.size();
+  }
+  /**
+   * <pre>
+   * The guest attributes for the TPU workers.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GuestAttributes getGuestAttributes(int index) {
+    return guestAttributes_.get(index);
+  }
+  /**
+   * <pre>
+   * The guest attributes for the TPU workers.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GuestAttributesOrBuilder getGuestAttributesOrBuilder(
+      int index) {
+    return guestAttributes_.get(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    for (int i = 0; i < guestAttributes_.size(); i++) {
+      output.writeMessage(1, guestAttributes_.get(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < guestAttributes_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(1, guestAttributes_.get(i));
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse other = (com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse) obj;
+
+    if (!getGuestAttributesList()
+        .equals(other.getGuestAttributesList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getGuestAttributesCount() > 0) {
+      hash = (37 * hash) + GUEST_ATTRIBUTES_FIELD_NUMBER;
+      hash = (53 * hash) + getGuestAttributesList().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Response for
+   * [GetGuestAttributes][google.cloud.tpu.v2alpha1.Tpu.GetGuestAttributes].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.GetGuestAttributesResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.GetGuestAttributesResponse)
+      com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse.class, com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+        getGuestAttributesFieldBuilder();
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (guestAttributesBuilder_ == null) {
+        guestAttributes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        guestAttributesBuilder_.clear();
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetGuestAttributesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse build() {
+      com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse buildPartial() {
+      com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse result = new com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (guestAttributesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          guestAttributes_ = java.util.Collections.unmodifiableList(guestAttributes_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.guestAttributes_ = guestAttributes_;
+      } else {
+        result.guestAttributes_ = guestAttributesBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse other) {
+      if (other == com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse.getDefaultInstance()) return this;
+      if (guestAttributesBuilder_ == null) {
+        if (!other.guestAttributes_.isEmpty()) {
+          if (guestAttributes_.isEmpty()) {
+            guestAttributes_ = other.guestAttributes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureGuestAttributesIsMutable();
+            guestAttributes_.addAll(other.guestAttributes_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.guestAttributes_.isEmpty()) {
+          if (guestAttributesBuilder_.isEmpty()) {
+            guestAttributesBuilder_.dispose();
+            guestAttributesBuilder_ = null;
+            guestAttributes_ = other.guestAttributes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            guestAttributesBuilder_ = 
+              com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
+                 getGuestAttributesFieldBuilder() : null;
+          } else {
+            guestAttributesBuilder_.addAllMessages(other.guestAttributes_);
+          }
+        }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.tpu.v2alpha1.GuestAttributes> guestAttributes_ =
+      java.util.Collections.emptyList();
+    private void ensureGuestAttributesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        guestAttributes_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.GuestAttributes>(guestAttributes_);
+        bitField0_ |= 0x00000001;
+       }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.GuestAttributes, com.google.cloud.tpu.v2alpha1.GuestAttributes.Builder, com.google.cloud.tpu.v2alpha1.GuestAttributesOrBuilder> guestAttributesBuilder_;
+
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.GuestAttributes> getGuestAttributesList() {
+      if (guestAttributesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(guestAttributes_);
+      } else {
+        return guestAttributesBuilder_.getMessageList();
+      }
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public int getGuestAttributesCount() {
+      if (guestAttributesBuilder_ == null) {
+        return guestAttributes_.size();
+      } else {
+        return guestAttributesBuilder_.getCount();
+      }
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.GuestAttributes getGuestAttributes(int index) {
+      if (guestAttributesBuilder_ == null) {
+        return guestAttributes_.get(index);
+      } else {
+        return guestAttributesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public Builder setGuestAttributes(
+        int index, com.google.cloud.tpu.v2alpha1.GuestAttributes value) {
+      if (guestAttributesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureGuestAttributesIsMutable();
+        guestAttributes_.set(index, value);
+        onChanged();
+      } else {
+        guestAttributesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public Builder setGuestAttributes(
+        int index, com.google.cloud.tpu.v2alpha1.GuestAttributes.Builder builderForValue) {
+      if (guestAttributesBuilder_ == null) {
+        ensureGuestAttributesIsMutable();
+        guestAttributes_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        guestAttributesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public Builder addGuestAttributes(com.google.cloud.tpu.v2alpha1.GuestAttributes value) {
+      if (guestAttributesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureGuestAttributesIsMutable();
+        guestAttributes_.add(value);
+        onChanged();
+      } else {
+        guestAttributesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public Builder addGuestAttributes(
+        int index, com.google.cloud.tpu.v2alpha1.GuestAttributes value) {
+      if (guestAttributesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureGuestAttributesIsMutable();
+        guestAttributes_.add(index, value);
+        onChanged();
+      } else {
+        guestAttributesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public Builder addGuestAttributes(
+        com.google.cloud.tpu.v2alpha1.GuestAttributes.Builder builderForValue) {
+      if (guestAttributesBuilder_ == null) {
+        ensureGuestAttributesIsMutable();
+        guestAttributes_.add(builderForValue.build());
+        onChanged();
+      } else {
+        guestAttributesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public Builder addGuestAttributes(
+        int index, com.google.cloud.tpu.v2alpha1.GuestAttributes.Builder builderForValue) {
+      if (guestAttributesBuilder_ == null) {
+        ensureGuestAttributesIsMutable();
+        guestAttributes_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        guestAttributesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public Builder addAllGuestAttributes(
+        java.lang.Iterable<? extends com.google.cloud.tpu.v2alpha1.GuestAttributes> values) {
+      if (guestAttributesBuilder_ == null) {
+        ensureGuestAttributesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, guestAttributes_);
+        onChanged();
+      } else {
+        guestAttributesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public Builder clearGuestAttributes() {
+      if (guestAttributesBuilder_ == null) {
+        guestAttributes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        guestAttributesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public Builder removeGuestAttributes(int index) {
+      if (guestAttributesBuilder_ == null) {
+        ensureGuestAttributesIsMutable();
+        guestAttributes_.remove(index);
+        onChanged();
+      } else {
+        guestAttributesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.GuestAttributes.Builder getGuestAttributesBuilder(
+        int index) {
+      return getGuestAttributesFieldBuilder().getBuilder(index);
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesOrBuilder getGuestAttributesOrBuilder(
+        int index) {
+      if (guestAttributesBuilder_ == null) {
+        return guestAttributes_.get(index);  } else {
+        return guestAttributesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.tpu.v2alpha1.GuestAttributesOrBuilder> 
+         getGuestAttributesOrBuilderList() {
+      if (guestAttributesBuilder_ != null) {
+        return guestAttributesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(guestAttributes_);
+      }
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.GuestAttributes.Builder addGuestAttributesBuilder() {
+      return getGuestAttributesFieldBuilder().addBuilder(
+          com.google.cloud.tpu.v2alpha1.GuestAttributes.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.GuestAttributes.Builder addGuestAttributesBuilder(
+        int index) {
+      return getGuestAttributesFieldBuilder().addBuilder(
+          index, com.google.cloud.tpu.v2alpha1.GuestAttributes.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The guest attributes for the TPU workers.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.GuestAttributes.Builder> 
+         getGuestAttributesBuilderList() {
+      return getGuestAttributesFieldBuilder().getBuilderList();
+    }
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.GuestAttributes, com.google.cloud.tpu.v2alpha1.GuestAttributes.Builder, com.google.cloud.tpu.v2alpha1.GuestAttributesOrBuilder> 
+        getGuestAttributesFieldBuilder() {
+      if (guestAttributesBuilder_ == null) {
+        guestAttributesBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.GuestAttributes, com.google.cloud.tpu.v2alpha1.GuestAttributes.Builder, com.google.cloud.tpu.v2alpha1.GuestAttributesOrBuilder>(
+                guestAttributes_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        guestAttributes_ = null;
+      }
+      return guestAttributesBuilder_;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.GetGuestAttributesResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.GetGuestAttributesResponse)
+  private static final com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetGuestAttributesResponse>
+      PARSER = new com.google.protobuf.AbstractParser<GetGuestAttributesResponse>() {
+    @java.lang.Override
+    public GetGuestAttributesResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GetGuestAttributesResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GetGuestAttributesResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetGuestAttributesResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponseOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponseOrBuilder.java
new file mode 100644
index 000000000000..34ae4e22da30
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetGuestAttributesResponseOrBuilder.java
@@ -0,0 +1,53 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface GetGuestAttributesResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.GetGuestAttributesResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The guest attributes for the TPU workers.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+   */
+  java.util.List<com.google.cloud.tpu.v2alpha1.GuestAttributes> 
+      getGuestAttributesList();
+  /**
+   * <pre>
+   * The guest attributes for the TPU workers.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.GuestAttributes getGuestAttributes(int index);
+  /**
+   * <pre>
+   * The guest attributes for the TPU workers.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+   */
+  int getGuestAttributesCount();
+  /**
+   * <pre>
+   * The guest attributes for the TPU workers.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.tpu.v2alpha1.GuestAttributesOrBuilder> 
+      getGuestAttributesOrBuilderList();
+  /**
+   * <pre>
+   * The guest attributes for the TPU workers.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributes guest_attributes = 1;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.GuestAttributesOrBuilder getGuestAttributesOrBuilder(
+      int index);
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequest.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequest.java
new file mode 100644
index 000000000000..71202aa1cb91
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequest.java
@@ -0,0 +1,595 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Request for [GetNode][google.cloud.tpu.v2alpha1.Tpu.GetNode].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.GetNodeRequest}
+ */
+public final class GetNodeRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.GetNodeRequest)
+    GetNodeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GetNodeRequest.newBuilder() to construct.
+  private GetNodeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GetNodeRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GetNodeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GetNodeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetNodeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetNodeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.GetNodeRequest.class, com.google.cloud.tpu.v2alpha1.GetNodeRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.GetNodeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.GetNodeRequest other = (com.google.cloud.tpu.v2alpha1.GetNodeRequest) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GetNodeRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetNodeRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetNodeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetNodeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetNodeRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetNodeRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetNodeRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetNodeRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetNodeRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetNodeRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.GetNodeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for [GetNode][google.cloud.tpu.v2alpha1.Tpu.GetNode].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.GetNodeRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.GetNodeRequest)
+      com.google.cloud.tpu.v2alpha1.GetNodeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetNodeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.GetNodeRequest.class, com.google.cloud.tpu.v2alpha1.GetNodeRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.GetNodeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetNodeRequest getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.GetNodeRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetNodeRequest build() {
+      com.google.cloud.tpu.v2alpha1.GetNodeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetNodeRequest buildPartial() {
+      com.google.cloud.tpu.v2alpha1.GetNodeRequest result = new com.google.cloud.tpu.v2alpha1.GetNodeRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.GetNodeRequest) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.GetNodeRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.GetNodeRequest other) {
+      if (other == com.google.cloud.tpu.v2alpha1.GetNodeRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.GetNodeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.GetNodeRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.GetNodeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.GetNodeRequest)
+  private static final com.google.cloud.tpu.v2alpha1.GetNodeRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.GetNodeRequest();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GetNodeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetNodeRequest>
+      PARSER = new com.google.protobuf.AbstractParser<GetNodeRequest>() {
+    @java.lang.Override
+    public GetNodeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GetNodeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GetNodeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetNodeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GetNodeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequestOrBuilder.java
new file mode 100644
index 000000000000..4374797464d5
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetNodeRequestOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface GetNodeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.GetNodeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequest.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequest.java
new file mode 100644
index 000000000000..8fdf3fe3301d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequest.java
@@ -0,0 +1,597 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Request for
+ * [GetRuntimeVersion][google.cloud.tpu.v2alpha1.Tpu.GetRuntimeVersion].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest}
+ */
+public final class GetRuntimeVersionRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest)
+    GetRuntimeVersionRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GetRuntimeVersionRequest.newBuilder() to construct.
+  private GetRuntimeVersionRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GetRuntimeVersionRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GetRuntimeVersionRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GetRuntimeVersionRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
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+
+            name_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
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+            break;
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+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetRuntimeVersionRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
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+            com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest.class, com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest.Builder.class);
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+
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+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
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+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
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+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
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+  public com.google.protobuf.ByteString
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+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
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+  @java.lang.Override
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+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
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+    memoizedIsInitialized = 1;
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+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
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+  @java.lang.Override
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+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest)) {
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+
+    if (!getName()
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+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
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+  public static com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest parseFrom(
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+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for
+   * [GetRuntimeVersion][google.cloud.tpu.v2alpha1.Tpu.GetRuntimeVersion].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest)
+      com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetRuntimeVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetRuntimeVersionRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest.class, com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GetRuntimeVersionRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest build() {
+      com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest buildPartial() {
+      com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest result = new com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest other) {
+      if (other == com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The resource name.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest)
+  private static final com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GetRuntimeVersionRequest>
+      PARSER = new com.google.protobuf.AbstractParser<GetRuntimeVersionRequest>() {
+    @java.lang.Override
+    public GetRuntimeVersionRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GetRuntimeVersionRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GetRuntimeVersionRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GetRuntimeVersionRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequestOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequestOrBuilder.java
new file mode 100644
index 000000000000..e5e3a11c3528
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GetRuntimeVersionRequestOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface GetRuntimeVersionRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * Required. The resource name.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributes.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributes.java
new file mode 100644
index 000000000000..02bb58a8c39a
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributes.java
@@ -0,0 +1,845 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * A guest attributes.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.GuestAttributes}
+ */
+public final class GuestAttributes extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.GuestAttributes)
+    GuestAttributesOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GuestAttributes.newBuilder() to construct.
+  private GuestAttributes(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GuestAttributes() {
+    queryPath_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GuestAttributes();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GuestAttributes(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
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+        switch (tag) {
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+
+            queryPath_ = s;
+            break;
+          }
+          case 18: {
+            com.google.cloud.tpu.v2alpha1.GuestAttributesValue.Builder subBuilder = null;
+            if (queryValue_ != null) {
+              subBuilder = queryValue_.toBuilder();
+            }
+            queryValue_ = input.readMessage(com.google.cloud.tpu.v2alpha1.GuestAttributesValue.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(queryValue_);
+              queryValue_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
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+              done = true;
+            }
+            break;
+          }
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+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributes_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributes_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.GuestAttributes.class, com.google.cloud.tpu.v2alpha1.GuestAttributes.Builder.class);
+  }
+
+  public static final int QUERY_PATH_FIELD_NUMBER = 1;
+  private volatile java.lang.Object queryPath_;
+  /**
+   * <pre>
+   * The path to be queried. This can be the default namespace ('/') or a
+   * nested namespace ('/&#92;&lt;namespace&#92;&gt;/') or a specified key
+   * ('/&#92;&lt;namespace&#92;&gt;/&#92;&lt;key&#92;&gt;')
+   * </pre>
+   *
+   * <code>string query_path = 1;</code>
+   * @return The queryPath.
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+  public java.lang.String getQueryPath() {
+    java.lang.Object ref = queryPath_;
+    if (ref instanceof java.lang.String) {
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+      com.google.protobuf.ByteString bs = 
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+      java.lang.String s = bs.toStringUtf8();
+      queryPath_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The path to be queried. This can be the default namespace ('/') or a
+   * nested namespace ('/&#92;&lt;namespace&#92;&gt;/') or a specified key
+   * ('/&#92;&lt;namespace&#92;&gt;/&#92;&lt;key&#92;&gt;')
+   * </pre>
+   *
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+   * @return The bytes for queryPath.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getQueryPathBytes() {
+    java.lang.Object ref = queryPath_;
+    if (ref instanceof java.lang.String) {
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+      queryPath_ = b;
+      return b;
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+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int QUERY_VALUE_FIELD_NUMBER = 2;
+  private com.google.cloud.tpu.v2alpha1.GuestAttributesValue queryValue_;
+  /**
+   * <pre>
+   * The value of the requested queried path.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+   * @return Whether the queryValue field is set.
+   */
+  @java.lang.Override
+  public boolean hasQueryValue() {
+    return queryValue_ != null;
+  }
+  /**
+   * <pre>
+   * The value of the requested queried path.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+   * @return The queryValue.
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GuestAttributesValue getQueryValue() {
+    return queryValue_ == null ? com.google.cloud.tpu.v2alpha1.GuestAttributesValue.getDefaultInstance() : queryValue_;
+  }
+  /**
+   * <pre>
+   * The value of the requested queried path.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GuestAttributesValueOrBuilder getQueryValueOrBuilder() {
+    return getQueryValue();
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
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+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
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+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(queryPath_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, queryPath_);
+    }
+    if (queryValue_ != null) {
+      output.writeMessage(2, getQueryValue());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(queryPath_)) {
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+    }
+    if (queryValue_ != null) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(2, getQueryValue());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.GuestAttributes)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.GuestAttributes other = (com.google.cloud.tpu.v2alpha1.GuestAttributes) obj;
+
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+    if (hasQueryValue() != other.hasQueryValue()) return false;
+    if (hasQueryValue()) {
+      if (!getQueryValue()
+          .equals(other.getQueryValue())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + QUERY_PATH_FIELD_NUMBER;
+    hash = (53 * hash) + getQueryPath().hashCode();
+    if (hasQueryValue()) {
+      hash = (37 * hash) + QUERY_VALUE_FIELD_NUMBER;
+      hash = (53 * hash) + getQueryValue().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributes parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributes parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributes parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributes parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributes parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributes parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributes parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributes parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributes parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributes parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributes parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributes parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.GuestAttributes prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A guest attributes.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.GuestAttributes}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.GuestAttributes)
+      com.google.cloud.tpu.v2alpha1.GuestAttributesOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributes_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributes_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.GuestAttributes.class, com.google.cloud.tpu.v2alpha1.GuestAttributes.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.GuestAttributes.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      queryPath_ = "";
+
+      if (queryValueBuilder_ == null) {
+        queryValue_ = null;
+      } else {
+        queryValue_ = null;
+        queryValueBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributes_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GuestAttributes getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.GuestAttributes.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GuestAttributes build() {
+      com.google.cloud.tpu.v2alpha1.GuestAttributes result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GuestAttributes buildPartial() {
+      com.google.cloud.tpu.v2alpha1.GuestAttributes result = new com.google.cloud.tpu.v2alpha1.GuestAttributes(this);
+      result.queryPath_ = queryPath_;
+      if (queryValueBuilder_ == null) {
+        result.queryValue_ = queryValue_;
+      } else {
+        result.queryValue_ = queryValueBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.GuestAttributes) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.GuestAttributes)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.GuestAttributes other) {
+      if (other == com.google.cloud.tpu.v2alpha1.GuestAttributes.getDefaultInstance()) return this;
+      if (!other.getQueryPath().isEmpty()) {
+        queryPath_ = other.queryPath_;
+        onChanged();
+      }
+      if (other.hasQueryValue()) {
+        mergeQueryValue(other.getQueryValue());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.GuestAttributes parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.GuestAttributes) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object queryPath_ = "";
+    /**
+     * <pre>
+     * The path to be queried. This can be the default namespace ('/') or a
+     * nested namespace ('/&#92;&lt;namespace&#92;&gt;/') or a specified key
+     * ('/&#92;&lt;namespace&#92;&gt;/&#92;&lt;key&#92;&gt;')
+     * </pre>
+     *
+     * <code>string query_path = 1;</code>
+     * @return The queryPath.
+     */
+    public java.lang.String getQueryPath() {
+      java.lang.Object ref = queryPath_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        queryPath_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The path to be queried. This can be the default namespace ('/') or a
+     * nested namespace ('/&#92;&lt;namespace&#92;&gt;/') or a specified key
+     * ('/&#92;&lt;namespace&#92;&gt;/&#92;&lt;key&#92;&gt;')
+     * </pre>
+     *
+     * <code>string query_path = 1;</code>
+     * @return The bytes for queryPath.
+     */
+    public com.google.protobuf.ByteString
+        getQueryPathBytes() {
+      java.lang.Object ref = queryPath_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        queryPath_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The path to be queried. This can be the default namespace ('/') or a
+     * nested namespace ('/&#92;&lt;namespace&#92;&gt;/') or a specified key
+     * ('/&#92;&lt;namespace&#92;&gt;/&#92;&lt;key&#92;&gt;')
+     * </pre>
+     *
+     * <code>string query_path = 1;</code>
+     * @param value The queryPath to set.
+     * @return This builder for chaining.
+     */
+    public Builder setQueryPath(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      queryPath_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The path to be queried. This can be the default namespace ('/') or a
+     * nested namespace ('/&#92;&lt;namespace&#92;&gt;/') or a specified key
+     * ('/&#92;&lt;namespace&#92;&gt;/&#92;&lt;key&#92;&gt;')
+     * </pre>
+     *
+     * <code>string query_path = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearQueryPath() {
+      
+      queryPath_ = getDefaultInstance().getQueryPath();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The path to be queried. This can be the default namespace ('/') or a
+     * nested namespace ('/&#92;&lt;namespace&#92;&gt;/') or a specified key
+     * ('/&#92;&lt;namespace&#92;&gt;/&#92;&lt;key&#92;&gt;')
+     * </pre>
+     *
+     * <code>string query_path = 1;</code>
+     * @param value The bytes for queryPath to set.
+     * @return This builder for chaining.
+     */
+    public Builder setQueryPathBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      queryPath_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.tpu.v2alpha1.GuestAttributesValue queryValue_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.GuestAttributesValue, com.google.cloud.tpu.v2alpha1.GuestAttributesValue.Builder, com.google.cloud.tpu.v2alpha1.GuestAttributesValueOrBuilder> queryValueBuilder_;
+    /**
+     * <pre>
+     * The value of the requested queried path.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+     * @return Whether the queryValue field is set.
+     */
+    public boolean hasQueryValue() {
+      return queryValueBuilder_ != null || queryValue_ != null;
+    }
+    /**
+     * <pre>
+     * The value of the requested queried path.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+     * @return The queryValue.
+     */
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesValue getQueryValue() {
+      if (queryValueBuilder_ == null) {
+        return queryValue_ == null ? com.google.cloud.tpu.v2alpha1.GuestAttributesValue.getDefaultInstance() : queryValue_;
+      } else {
+        return queryValueBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * The value of the requested queried path.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+     */
+    public Builder setQueryValue(com.google.cloud.tpu.v2alpha1.GuestAttributesValue value) {
+      if (queryValueBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        queryValue_ = value;
+        onChanged();
+      } else {
+        queryValueBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The value of the requested queried path.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+     */
+    public Builder setQueryValue(
+        com.google.cloud.tpu.v2alpha1.GuestAttributesValue.Builder builderForValue) {
+      if (queryValueBuilder_ == null) {
+        queryValue_ = builderForValue.build();
+        onChanged();
+      } else {
+        queryValueBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The value of the requested queried path.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+     */
+    public Builder mergeQueryValue(com.google.cloud.tpu.v2alpha1.GuestAttributesValue value) {
+      if (queryValueBuilder_ == null) {
+        if (queryValue_ != null) {
+          queryValue_ =
+            com.google.cloud.tpu.v2alpha1.GuestAttributesValue.newBuilder(queryValue_).mergeFrom(value).buildPartial();
+        } else {
+          queryValue_ = value;
+        }
+        onChanged();
+      } else {
+        queryValueBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The value of the requested queried path.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+     */
+    public Builder clearQueryValue() {
+      if (queryValueBuilder_ == null) {
+        queryValue_ = null;
+        onChanged();
+      } else {
+        queryValue_ = null;
+        queryValueBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The value of the requested queried path.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesValue.Builder getQueryValueBuilder() {
+      
+      onChanged();
+      return getQueryValueFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * The value of the requested queried path.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesValueOrBuilder getQueryValueOrBuilder() {
+      if (queryValueBuilder_ != null) {
+        return queryValueBuilder_.getMessageOrBuilder();
+      } else {
+        return queryValue_ == null ?
+            com.google.cloud.tpu.v2alpha1.GuestAttributesValue.getDefaultInstance() : queryValue_;
+      }
+    }
+    /**
+     * <pre>
+     * The value of the requested queried path.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.GuestAttributesValue, com.google.cloud.tpu.v2alpha1.GuestAttributesValue.Builder, com.google.cloud.tpu.v2alpha1.GuestAttributesValueOrBuilder> 
+        getQueryValueFieldBuilder() {
+      if (queryValueBuilder_ == null) {
+        queryValueBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.GuestAttributesValue, com.google.cloud.tpu.v2alpha1.GuestAttributesValue.Builder, com.google.cloud.tpu.v2alpha1.GuestAttributesValueOrBuilder>(
+                getQueryValue(),
+                getParentForChildren(),
+                isClean());
+        queryValue_ = null;
+      }
+      return queryValueBuilder_;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.GuestAttributes)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.GuestAttributes)
+  private static final com.google.cloud.tpu.v2alpha1.GuestAttributes DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.GuestAttributes();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributes getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GuestAttributes>
+      PARSER = new com.google.protobuf.AbstractParser<GuestAttributes>() {
+    @java.lang.Override
+    public GuestAttributes parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GuestAttributes(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GuestAttributes> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GuestAttributes> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GuestAttributes getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntry.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntry.java
new file mode 100644
index 000000000000..9bc25e63e29b
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntry.java
@@ -0,0 +1,927 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * A guest attributes namespace/key/value entry.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.GuestAttributesEntry}
+ */
+public final class GuestAttributesEntry extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.GuestAttributesEntry)
+    GuestAttributesEntryOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GuestAttributesEntry.newBuilder() to construct.
+  private GuestAttributesEntry(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GuestAttributesEntry() {
+    namespace_ = "";
+    key_ = "";
+    value_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GuestAttributesEntry();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GuestAttributesEntry(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            namespace_ = s;
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            key_ = s;
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            value_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributesEntry_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributesEntry_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.class, com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.Builder.class);
+  }
+
+  public static final int NAMESPACE_FIELD_NUMBER = 1;
+  private volatile java.lang.Object namespace_;
+  /**
+   * <pre>
+   * Namespace for the guest attribute entry.
+   * </pre>
+   *
+   * <code>string namespace = 1;</code>
+   * @return The namespace.
+   */
+  @java.lang.Override
+  public java.lang.String getNamespace() {
+    java.lang.Object ref = namespace_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      namespace_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Namespace for the guest attribute entry.
+   * </pre>
+   *
+   * <code>string namespace = 1;</code>
+   * @return The bytes for namespace.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNamespaceBytes() {
+    java.lang.Object ref = namespace_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      namespace_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int KEY_FIELD_NUMBER = 2;
+  private volatile java.lang.Object key_;
+  /**
+   * <pre>
+   * Key for the guest attribute entry.
+   * </pre>
+   *
+   * <code>string key = 2;</code>
+   * @return The key.
+   */
+  @java.lang.Override
+  public java.lang.String getKey() {
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesEntry parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
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+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesEntry parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesEntry parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
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+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesEntry parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
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+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesEntry parseFrom(
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesEntry parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesEntry parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesEntry parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesEntry parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.GuestAttributesEntry prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A guest attributes namespace/key/value entry.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.GuestAttributesEntry}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.GuestAttributesEntry)
+      com.google.cloud.tpu.v2alpha1.GuestAttributesEntryOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributesEntry_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
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+    private void maybeForceBuilderInitialization() {
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+
+      key_ = "";
+
+      value_ = "";
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+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributesEntry_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesEntry getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesEntry build() {
+      com.google.cloud.tpu.v2alpha1.GuestAttributesEntry result = buildPartial();
+      if (!result.isInitialized()) {
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+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesEntry buildPartial() {
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+      result.namespace_ = namespace_;
+      result.key_ = key_;
+      result.value_ = value_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
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+    @java.lang.Override
+    public Builder clearOneof(
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+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.GuestAttributesEntry) {
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+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.GuestAttributesEntry other) {
+      if (other == com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.getDefaultInstance()) return this;
+      if (!other.getNamespace().isEmpty()) {
+        namespace_ = other.namespace_;
+        onChanged();
+      }
+      if (!other.getKey().isEmpty()) {
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+      onChanged();
+      return this;
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+
+    @java.lang.Override
+    public final boolean isInitialized() {
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+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.GuestAttributesEntry parsedMessage = null;
+      try {
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+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.GuestAttributesEntry) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
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+      return this;
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+
+    private java.lang.Object namespace_ = "";
+    /**
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+     * </pre>
+     *
+     * <code>string namespace = 1;</code>
+     * @return The namespace.
+     */
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+        namespace_ = s;
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+    /**
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+     *
+     * <code>string namespace = 1;</code>
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+      java.lang.Object ref = namespace_;
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+        namespace_ = b;
+        return b;
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+      }
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+    /**
+     * <pre>
+     * Namespace for the guest attribute entry.
+     * </pre>
+     *
+     * <code>string namespace = 1;</code>
+     * @param value The namespace to set.
+     * @return This builder for chaining.
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+    public Builder setNamespace(
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+      if (value == null) {
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+  
+      namespace_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
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+     * </pre>
+     *
+     * <code>string namespace = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNamespace() {
+      
+      namespace_ = getDefaultInstance().getNamespace();
+      onChanged();
+      return this;
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+    /**
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+      if (value == null) {
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+  checkByteStringIsUtf8(value);
+      
+      namespace_ = value;
+      onChanged();
+      return this;
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+
+    private java.lang.Object key_ = "";
+    /**
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+     * Key for the guest attribute entry.
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+     *
+     * <code>string key = 2;</code>
+     * @return The key.
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+        key_ = s;
+        return s;
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+    /**
+     * <pre>
+     * Key for the guest attribute entry.
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+     *
+     * <code>string key = 2;</code>
+     * @return The bytes for key.
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+      java.lang.Object ref = key_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
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+        key_ = b;
+        return b;
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+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Key for the guest attribute entry.
+     * </pre>
+     *
+     * <code>string key = 2;</code>
+     * @param value The key to set.
+     * @return This builder for chaining.
+     */
+    public Builder setKey(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      key_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Key for the guest attribute entry.
+     * </pre>
+     *
+     * <code>string key = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearKey() {
+      
+      key_ = getDefaultInstance().getKey();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Key for the guest attribute entry.
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+     *
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+     * @param value The bytes for key to set.
+     * @return This builder for chaining.
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+      if (value == null) {
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+  checkByteStringIsUtf8(value);
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+      onChanged();
+      return this;
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+    /**
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+     *
+     * <code>string value = 3;</code>
+     * @return The value.
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+        java.lang.String s = bs.toStringUtf8();
+        value_ = s;
+        return s;
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+     *
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+     * @param value The value to set.
+     * @return This builder for chaining.
+     */
+    public Builder setValue(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      value_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Value for the guest attribute entry.
+     * </pre>
+     *
+     * <code>string value = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearValue() {
+      
+      value_ = getDefaultInstance().getValue();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Value for the guest attribute entry.
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+     *
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+     * @param value The bytes for value to set.
+     * @return This builder for chaining.
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+      if (value == null) {
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+  checkByteStringIsUtf8(value);
+      
+      value_ = value;
+      onChanged();
+      return this;
+    }
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+    @java.lang.Override
+    public final Builder mergeUnknownFields(
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+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.GuestAttributesEntry)
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+  static {
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+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesEntry getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GuestAttributesEntry>
+      PARSER = new com.google.protobuf.AbstractParser<GuestAttributesEntry>() {
+    @java.lang.Override
+    public GuestAttributesEntry parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GuestAttributesEntry(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GuestAttributesEntry> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GuestAttributesEntry> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GuestAttributesEntry getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntryOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntryOrBuilder.java
new file mode 100644
index 000000000000..415dc3dc7b86
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesEntryOrBuilder.java
@@ -0,0 +1,69 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface GuestAttributesEntryOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.GuestAttributesEntry)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Namespace for the guest attribute entry.
+   * </pre>
+   *
+   * <code>string namespace = 1;</code>
+   * @return The namespace.
+   */
+  java.lang.String getNamespace();
+  /**
+   * <pre>
+   * Namespace for the guest attribute entry.
+   * </pre>
+   *
+   * <code>string namespace = 1;</code>
+   * @return The bytes for namespace.
+   */
+  com.google.protobuf.ByteString
+      getNamespaceBytes();
+
+  /**
+   * <pre>
+   * Key for the guest attribute entry.
+   * </pre>
+   *
+   * <code>string key = 2;</code>
+   * @return The key.
+   */
+  java.lang.String getKey();
+  /**
+   * <pre>
+   * Key for the guest attribute entry.
+   * </pre>
+   *
+   * <code>string key = 2;</code>
+   * @return The bytes for key.
+   */
+  com.google.protobuf.ByteString
+      getKeyBytes();
+
+  /**
+   * <pre>
+   * Value for the guest attribute entry.
+   * </pre>
+   *
+   * <code>string value = 3;</code>
+   * @return The value.
+   */
+  java.lang.String getValue();
+  /**
+   * <pre>
+   * Value for the guest attribute entry.
+   * </pre>
+   *
+   * <code>string value = 3;</code>
+   * @return The bytes for value.
+   */
+  com.google.protobuf.ByteString
+      getValueBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesOrBuilder.java
new file mode 100644
index 000000000000..e233695fde73
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesOrBuilder.java
@@ -0,0 +1,60 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface GuestAttributesOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.GuestAttributes)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The path to be queried. This can be the default namespace ('/') or a
+   * nested namespace ('/&#92;&lt;namespace&#92;&gt;/') or a specified key
+   * ('/&#92;&lt;namespace&#92;&gt;/&#92;&lt;key&#92;&gt;')
+   * </pre>
+   *
+   * <code>string query_path = 1;</code>
+   * @return The queryPath.
+   */
+  java.lang.String getQueryPath();
+  /**
+   * <pre>
+   * The path to be queried. This can be the default namespace ('/') or a
+   * nested namespace ('/&#92;&lt;namespace&#92;&gt;/') or a specified key
+   * ('/&#92;&lt;namespace&#92;&gt;/&#92;&lt;key&#92;&gt;')
+   * </pre>
+   *
+   * <code>string query_path = 1;</code>
+   * @return The bytes for queryPath.
+   */
+  com.google.protobuf.ByteString
+      getQueryPathBytes();
+
+  /**
+   * <pre>
+   * The value of the requested queried path.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+   * @return Whether the queryValue field is set.
+   */
+  boolean hasQueryValue();
+  /**
+   * <pre>
+   * The value of the requested queried path.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+   * @return The queryValue.
+   */
+  com.google.cloud.tpu.v2alpha1.GuestAttributesValue getQueryValue();
+  /**
+   * <pre>
+   * The value of the requested queried path.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.GuestAttributesValue query_value = 2;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.GuestAttributesValueOrBuilder getQueryValueOrBuilder();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValue.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValue.java
new file mode 100644
index 000000000000..5bd7e1a59385
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValue.java
@@ -0,0 +1,872 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Array of guest attribute namespace/key/value tuples.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.GuestAttributesValue}
+ */
+public final class GuestAttributesValue extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.GuestAttributesValue)
+    GuestAttributesValueOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use GuestAttributesValue.newBuilder() to construct.
+  private GuestAttributesValue(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private GuestAttributesValue() {
+    items_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new GuestAttributesValue();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private GuestAttributesValue(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+              items_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.GuestAttributesEntry>();
+              mutable_bitField0_ |= 0x00000001;
+            }
+            items_.add(
+                input.readMessage(com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.parser(), extensionRegistry));
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        items_ = java.util.Collections.unmodifiableList(items_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributesValue_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributesValue_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.GuestAttributesValue.class, com.google.cloud.tpu.v2alpha1.GuestAttributesValue.Builder.class);
+  }
+
+  public static final int ITEMS_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.tpu.v2alpha1.GuestAttributesEntry> items_;
+  /**
+   * <pre>
+   * The list of guest attributes entries.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.tpu.v2alpha1.GuestAttributesEntry> getItemsList() {
+    return items_;
+  }
+  /**
+   * <pre>
+   * The list of guest attributes entries.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.tpu.v2alpha1.GuestAttributesEntryOrBuilder> 
+      getItemsOrBuilderList() {
+    return items_;
+  }
+  /**
+   * <pre>
+   * The list of guest attributes entries.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+   */
+  @java.lang.Override
+  public int getItemsCount() {
+    return items_.size();
+  }
+  /**
+   * <pre>
+   * The list of guest attributes entries.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GuestAttributesEntry getItems(int index) {
+    return items_.get(index);
+  }
+  /**
+   * <pre>
+   * The list of guest attributes entries.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GuestAttributesEntryOrBuilder getItemsOrBuilder(
+      int index) {
+    return items_.get(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    for (int i = 0; i < items_.size(); i++) {
+      output.writeMessage(1, items_.get(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < items_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(1, items_.get(i));
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.GuestAttributesValue)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.GuestAttributesValue other = (com.google.cloud.tpu.v2alpha1.GuestAttributesValue) obj;
+
+    if (!getItemsList()
+        .equals(other.getItemsList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getItemsCount() > 0) {
+      hash = (37 * hash) + ITEMS_FIELD_NUMBER;
+      hash = (53 * hash) + getItemsList().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesValue parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesValue parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesValue parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesValue parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesValue parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesValue parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesValue parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesValue parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesValue parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesValue parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesValue parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesValue parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.GuestAttributesValue prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Array of guest attribute namespace/key/value tuples.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.GuestAttributesValue}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.GuestAttributesValue)
+      com.google.cloud.tpu.v2alpha1.GuestAttributesValueOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributesValue_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributesValue_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.GuestAttributesValue.class, com.google.cloud.tpu.v2alpha1.GuestAttributesValue.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.GuestAttributesValue.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
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+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_GuestAttributesValue_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesValue getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.GuestAttributesValue.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesValue build() {
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+      if (!result.isInitialized()) {
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+      }
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+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesValue buildPartial() {
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+      int from_bitField0_ = bitField0_;
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+        }
+        result.items_ = items_;
+      } else {
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+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    public Builder clearField(
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+    public Builder clearOneof(
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+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
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+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.GuestAttributesValue) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.GuestAttributesValue)other);
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+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.GuestAttributesValue other) {
+      if (other == com.google.cloud.tpu.v2alpha1.GuestAttributesValue.getDefaultInstance()) return this;
+      if (itemsBuilder_ == null) {
+        if (!other.items_.isEmpty()) {
+          if (items_.isEmpty()) {
+            items_ = other.items_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureItemsIsMutable();
+            items_.addAll(other.items_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.items_.isEmpty()) {
+          if (itemsBuilder_.isEmpty()) {
+            itemsBuilder_.dispose();
+            itemsBuilder_ = null;
+            items_ = other.items_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            itemsBuilder_ = 
+              com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
+                 getItemsFieldBuilder() : null;
+          } else {
+            itemsBuilder_.addAllMessages(other.items_);
+          }
+        }
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.GuestAttributesValue parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.GuestAttributesValue) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.tpu.v2alpha1.GuestAttributesEntry> items_ =
+      java.util.Collections.emptyList();
+    private void ensureItemsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        items_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.GuestAttributesEntry>(items_);
+        bitField0_ |= 0x00000001;
+       }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.GuestAttributesEntry, com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.Builder, com.google.cloud.tpu.v2alpha1.GuestAttributesEntryOrBuilder> itemsBuilder_;
+
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.GuestAttributesEntry> getItemsList() {
+      if (itemsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(items_);
+      } else {
+        return itemsBuilder_.getMessageList();
+      }
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public int getItemsCount() {
+      if (itemsBuilder_ == null) {
+        return items_.size();
+      } else {
+        return itemsBuilder_.getCount();
+      }
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesEntry getItems(int index) {
+      if (itemsBuilder_ == null) {
+        return items_.get(index);
+      } else {
+        return itemsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public Builder setItems(
+        int index, com.google.cloud.tpu.v2alpha1.GuestAttributesEntry value) {
+      if (itemsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureItemsIsMutable();
+        items_.set(index, value);
+        onChanged();
+      } else {
+        itemsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public Builder setItems(
+        int index, com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.Builder builderForValue) {
+      if (itemsBuilder_ == null) {
+        ensureItemsIsMutable();
+        items_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        itemsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public Builder addItems(com.google.cloud.tpu.v2alpha1.GuestAttributesEntry value) {
+      if (itemsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureItemsIsMutable();
+        items_.add(value);
+        onChanged();
+      } else {
+        itemsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public Builder addItems(
+        int index, com.google.cloud.tpu.v2alpha1.GuestAttributesEntry value) {
+      if (itemsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureItemsIsMutable();
+        items_.add(index, value);
+        onChanged();
+      } else {
+        itemsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public Builder addItems(
+        com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.Builder builderForValue) {
+      if (itemsBuilder_ == null) {
+        ensureItemsIsMutable();
+        items_.add(builderForValue.build());
+        onChanged();
+      } else {
+        itemsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public Builder addItems(
+        int index, com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.Builder builderForValue) {
+      if (itemsBuilder_ == null) {
+        ensureItemsIsMutable();
+        items_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        itemsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public Builder addAllItems(
+        java.lang.Iterable<? extends com.google.cloud.tpu.v2alpha1.GuestAttributesEntry> values) {
+      if (itemsBuilder_ == null) {
+        ensureItemsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, items_);
+        onChanged();
+      } else {
+        itemsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public Builder clearItems() {
+      if (itemsBuilder_ == null) {
+        items_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        itemsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public Builder removeItems(int index) {
+      if (itemsBuilder_ == null) {
+        ensureItemsIsMutable();
+        items_.remove(index);
+        onChanged();
+      } else {
+        itemsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.Builder getItemsBuilder(
+        int index) {
+      return getItemsFieldBuilder().getBuilder(index);
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesEntryOrBuilder getItemsOrBuilder(
+        int index) {
+      if (itemsBuilder_ == null) {
+        return items_.get(index);  } else {
+        return itemsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.tpu.v2alpha1.GuestAttributesEntryOrBuilder> 
+         getItemsOrBuilderList() {
+      if (itemsBuilder_ != null) {
+        return itemsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(items_);
+      }
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.Builder addItemsBuilder() {
+      return getItemsFieldBuilder().addBuilder(
+          com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.Builder addItemsBuilder(
+        int index) {
+      return getItemsFieldBuilder().addBuilder(
+          index, com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The list of guest attributes entries.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.Builder> 
+         getItemsBuilderList() {
+      return getItemsFieldBuilder().getBuilderList();
+    }
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.GuestAttributesEntry, com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.Builder, com.google.cloud.tpu.v2alpha1.GuestAttributesEntryOrBuilder> 
+        getItemsFieldBuilder() {
+      if (itemsBuilder_ == null) {
+        itemsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.GuestAttributesEntry, com.google.cloud.tpu.v2alpha1.GuestAttributesEntry.Builder, com.google.cloud.tpu.v2alpha1.GuestAttributesEntryOrBuilder>(
+                items_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        items_ = null;
+      }
+      return itemsBuilder_;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.GuestAttributesValue)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.GuestAttributesValue)
+  private static final com.google.cloud.tpu.v2alpha1.GuestAttributesValue DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.GuestAttributesValue();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.GuestAttributesValue getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<GuestAttributesValue>
+      PARSER = new com.google.protobuf.AbstractParser<GuestAttributesValue>() {
+    @java.lang.Override
+    public GuestAttributesValue parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new GuestAttributesValue(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<GuestAttributesValue> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<GuestAttributesValue> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.GuestAttributesValue getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValueOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValueOrBuilder.java
new file mode 100644
index 000000000000..d7a9b5abe4f8
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/GuestAttributesValueOrBuilder.java
@@ -0,0 +1,53 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface GuestAttributesValueOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.GuestAttributesValue)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The list of guest attributes entries.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+   */
+  java.util.List<com.google.cloud.tpu.v2alpha1.GuestAttributesEntry> 
+      getItemsList();
+  /**
+   * <pre>
+   * The list of guest attributes entries.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.GuestAttributesEntry getItems(int index);
+  /**
+   * <pre>
+   * The list of guest attributes entries.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+   */
+  int getItemsCount();
+  /**
+   * <pre>
+   * The list of guest attributes entries.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.tpu.v2alpha1.GuestAttributesEntryOrBuilder> 
+      getItemsOrBuilderList();
+  /**
+   * <pre>
+   * The list of guest attributes entries.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.GuestAttributesEntry items = 1;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.GuestAttributesEntryOrBuilder getItemsOrBuilder(
+      int index);
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequest.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequest.java
new file mode 100644
index 000000000000..09478d219a59
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequest.java
@@ -0,0 +1,1175 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Request for
+ * [ListAcceleratorTypes][google.cloud.tpu.v2alpha1.Tpu.ListAcceleratorTypes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest}
+ */
+public final class ListAcceleratorTypesRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest)
+    ListAcceleratorTypesRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ListAcceleratorTypesRequest.newBuilder() to construct.
+  private ListAcceleratorTypesRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ListAcceleratorTypesRequest() {
+    parent_ = "";
+    pageToken_ = "";
+    filter_ = "";
+    orderBy_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ListAcceleratorTypesRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ListAcceleratorTypesRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            parent_ = s;
+            break;
+          }
+          case 16: {
+
+            pageSize_ = input.readInt32();
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            pageToken_ = s;
+            break;
+          }
+          case 42: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            filter_ = s;
+            break;
+          }
+          case 50: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            orderBy_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListAcceleratorTypesRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListAcceleratorTypesRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest.class, com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 2;
+  private int pageSize_;
+  /**
+   * <pre>
+   * The maximum number of items to return.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The pageToken.
+   */
+  @java.lang.Override
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+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest parseFrom(
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+  public Builder newBuilderForType() { return newBuilder(); }
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+   * </pre>
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+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+      
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object filter_ = "";
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @return The filter.
+     */
+    public java.lang.String getFilter() {
+      java.lang.Object ref = filter_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        filter_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @return The bytes for filter.
+     */
+    public com.google.protobuf.ByteString
+        getFilterBytes() {
+      java.lang.Object ref = filter_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        filter_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @param value The filter to set.
+     * @return This builder for chaining.
+     */
+    public Builder setFilter(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      filter_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearFilter() {
+      
+      filter_ = getDefaultInstance().getFilter();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @param value The bytes for filter to set.
+     * @return This builder for chaining.
+     */
+    public Builder setFilterBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      filter_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object orderBy_ = "";
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @return The orderBy.
+     */
+    public java.lang.String getOrderBy() {
+      java.lang.Object ref = orderBy_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        orderBy_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @return The bytes for orderBy.
+     */
+    public com.google.protobuf.ByteString
+        getOrderByBytes() {
+      java.lang.Object ref = orderBy_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        orderBy_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @param value The orderBy to set.
+     * @return This builder for chaining.
+     */
+    public Builder setOrderBy(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      orderBy_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearOrderBy() {
+      
+      orderBy_ = getDefaultInstance().getOrderBy();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @param value The bytes for orderBy to set.
+     * @return This builder for chaining.
+     */
+    public Builder setOrderByBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      orderBy_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest)
+  private static final com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListAcceleratorTypesRequest>
+      PARSER = new com.google.protobuf.AbstractParser<ListAcceleratorTypesRequest>() {
+    @java.lang.Override
+    public ListAcceleratorTypesRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ListAcceleratorTypesRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ListAcceleratorTypesRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListAcceleratorTypesRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequestOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequestOrBuilder.java
new file mode 100644
index 000000000000..2c6486a70c5f
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesRequestOrBuilder.java
@@ -0,0 +1,99 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface ListAcceleratorTypesRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString
+      getParentBytes();
+
+  /**
+   * <pre>
+   * The maximum number of items to return.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString
+      getPageTokenBytes();
+
+  /**
+   * <pre>
+   * List filter.
+   * </pre>
+   *
+   * <code>string filter = 5;</code>
+   * @return The filter.
+   */
+  java.lang.String getFilter();
+  /**
+   * <pre>
+   * List filter.
+   * </pre>
+   *
+   * <code>string filter = 5;</code>
+   * @return The bytes for filter.
+   */
+  com.google.protobuf.ByteString
+      getFilterBytes();
+
+  /**
+   * <pre>
+   * Sort results.
+   * </pre>
+   *
+   * <code>string order_by = 6;</code>
+   * @return The orderBy.
+   */
+  java.lang.String getOrderBy();
+  /**
+   * <pre>
+   * Sort results.
+   * </pre>
+   *
+   * <code>string order_by = 6;</code>
+   * @return The bytes for orderBy.
+   */
+  com.google.protobuf.ByteString
+      getOrderByBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponse.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponse.java
new file mode 100644
index 000000000000..e54eb48388e4
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponse.java
@@ -0,0 +1,1284 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Response for
+ * [ListAcceleratorTypes][google.cloud.tpu.v2alpha1.Tpu.ListAcceleratorTypes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse}
+ */
+public final class ListAcceleratorTypesResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse)
+    ListAcceleratorTypesResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ListAcceleratorTypesResponse.newBuilder() to construct.
+  private ListAcceleratorTypesResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ListAcceleratorTypesResponse() {
+    acceleratorTypes_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+    unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ListAcceleratorTypesResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ListAcceleratorTypesResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+              acceleratorTypes_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.AcceleratorType>();
+              mutable_bitField0_ |= 0x00000001;
+            }
+            acceleratorTypes_.add(
+                input.readMessage(com.google.cloud.tpu.v2alpha1.AcceleratorType.parser(), extensionRegistry));
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            nextPageToken_ = s;
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+            if (!((mutable_bitField0_ & 0x00000002) != 0)) {
+              unreachable_ = new com.google.protobuf.LazyStringArrayList();
+              mutable_bitField0_ |= 0x00000002;
+            }
+            unreachable_.add(s);
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        acceleratorTypes_ = java.util.Collections.unmodifiableList(acceleratorTypes_);
+      }
+      if (((mutable_bitField0_ & 0x00000002) != 0)) {
+        unreachable_ = unreachable_.getUnmodifiableView();
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListAcceleratorTypesResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListAcceleratorTypesResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse.class, com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse.Builder.class);
+  }
+
+  public static final int ACCELERATOR_TYPES_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.tpu.v2alpha1.AcceleratorType> acceleratorTypes_;
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.tpu.v2alpha1.AcceleratorType> getAcceleratorTypesList() {
+    return acceleratorTypes_;
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.tpu.v2alpha1.AcceleratorTypeOrBuilder> 
+      getAcceleratorTypesOrBuilderList() {
+    return acceleratorTypes_;
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+   */
+  @java.lang.Override
+  public int getAcceleratorTypesCount() {
+    return acceleratorTypes_.size();
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.AcceleratorType getAcceleratorTypes(int index) {
+    return acceleratorTypes_.get(index);
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.AcceleratorTypeOrBuilder getAcceleratorTypesOrBuilder(
+      int index) {
+    return acceleratorTypes_.get(index);
+  }
+
+  public static final int NEXT_PAGE_TOKEN_FIELD_NUMBER = 2;
+  private volatile java.lang.Object nextPageToken_;
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The nextPageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getNextPageToken() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      nextPageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The bytes for nextPageToken.
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+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNextPageTokenBytes() {
+    java.lang.Object ref = nextPageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
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+      nextPageToken_ = b;
+      return b;
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+      return (com.google.protobuf.ByteString) ref;
+    }
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+
+  public static final int UNREACHABLE_FIELD_NUMBER = 3;
+  private com.google.protobuf.LazyStringList unreachable_;
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return A list containing the unreachable.
+   */
+  public com.google.protobuf.ProtocolStringList
+      getUnreachableList() {
+    return unreachable_;
+  }
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return The count of unreachable.
+   */
+  public int getUnreachableCount() {
+    return unreachable_.size();
+  }
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the element to return.
+   * @return The unreachable at the given index.
+   */
+  public java.lang.String getUnreachable(int index) {
+    return unreachable_.get(index);
+  }
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the value to return.
+   * @return The bytes of the unreachable at the given index.
+   */
+  public com.google.protobuf.ByteString
+      getUnreachableBytes(int index) {
+    return unreachable_.getByteString(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    for (int i = 0; i < acceleratorTypes_.size(); i++) {
+      output.writeMessage(1, acceleratorTypes_.get(i));
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
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+    for (int i = 0; i < unreachable_.size(); i++) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, unreachable_.getRaw(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
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+      size += dataSize;
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+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
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+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse other = (com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse) obj;
+
+    if (!getAcceleratorTypesList()
+        .equals(other.getAcceleratorTypesList())) return false;
+    if (!getNextPageToken()
+        .equals(other.getNextPageToken())) return false;
+    if (!getUnreachableList()
+        .equals(other.getUnreachableList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getAcceleratorTypesCount() > 0) {
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+    hash = (53 * hash) + getNextPageToken().hashCode();
+    if (getUnreachableCount() > 0) {
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+      hash = (53 * hash) + getUnreachableList().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Response for
+   * [ListAcceleratorTypes][google.cloud.tpu.v2alpha1.Tpu.ListAcceleratorTypes].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse)
+      com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListAcceleratorTypesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListAcceleratorTypesResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse.class, com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+        getAcceleratorTypesFieldBuilder();
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (acceleratorTypesBuilder_ == null) {
+        acceleratorTypes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        acceleratorTypesBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000002);
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListAcceleratorTypesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse build() {
+      com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse buildPartial() {
+      com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse result = new com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (acceleratorTypesBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          acceleratorTypes_ = java.util.Collections.unmodifiableList(acceleratorTypes_);
+          bitField0_ = (bitField0_ & ~0x00000001);
+        }
+        result.acceleratorTypes_ = acceleratorTypes_;
+      } else {
+        result.acceleratorTypes_ = acceleratorTypesBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
+      if (((bitField0_ & 0x00000002) != 0)) {
+        unreachable_ = unreachable_.getUnmodifiableView();
+        bitField0_ = (bitField0_ & ~0x00000002);
+      }
+      result.unreachable_ = unreachable_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse other) {
+      if (other == com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse.getDefaultInstance()) return this;
+      if (acceleratorTypesBuilder_ == null) {
+        if (!other.acceleratorTypes_.isEmpty()) {
+          if (acceleratorTypes_.isEmpty()) {
+            acceleratorTypes_ = other.acceleratorTypes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureAcceleratorTypesIsMutable();
+            acceleratorTypes_.addAll(other.acceleratorTypes_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.acceleratorTypes_.isEmpty()) {
+          if (acceleratorTypesBuilder_.isEmpty()) {
+            acceleratorTypesBuilder_.dispose();
+            acceleratorTypesBuilder_ = null;
+            acceleratorTypes_ = other.acceleratorTypes_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            acceleratorTypesBuilder_ = 
+              com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
+                 getAcceleratorTypesFieldBuilder() : null;
+          } else {
+            acceleratorTypesBuilder_.addAllMessages(other.acceleratorTypes_);
+          }
+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      if (!other.unreachable_.isEmpty()) {
+        if (unreachable_.isEmpty()) {
+          unreachable_ = other.unreachable_;
+          bitField0_ = (bitField0_ & ~0x00000002);
+        } else {
+          ensureUnreachableIsMutable();
+          unreachable_.addAll(other.unreachable_);
+        }
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.tpu.v2alpha1.AcceleratorType> acceleratorTypes_ =
+      java.util.Collections.emptyList();
+    private void ensureAcceleratorTypesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        acceleratorTypes_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.AcceleratorType>(acceleratorTypes_);
+        bitField0_ |= 0x00000001;
+       }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.AcceleratorType, com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder, com.google.cloud.tpu.v2alpha1.AcceleratorTypeOrBuilder> acceleratorTypesBuilder_;
+
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.AcceleratorType> getAcceleratorTypesList() {
+      if (acceleratorTypesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(acceleratorTypes_);
+      } else {
+        return acceleratorTypesBuilder_.getMessageList();
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public int getAcceleratorTypesCount() {
+      if (acceleratorTypesBuilder_ == null) {
+        return acceleratorTypes_.size();
+      } else {
+        return acceleratorTypesBuilder_.getCount();
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.AcceleratorType getAcceleratorTypes(int index) {
+      if (acceleratorTypesBuilder_ == null) {
+        return acceleratorTypes_.get(index);
+      } else {
+        return acceleratorTypesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder setAcceleratorTypes(
+        int index, com.google.cloud.tpu.v2alpha1.AcceleratorType value) {
+      if (acceleratorTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.set(index, value);
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder setAcceleratorTypes(
+        int index, com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder builderForValue) {
+      if (acceleratorTypesBuilder_ == null) {
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder addAcceleratorTypes(com.google.cloud.tpu.v2alpha1.AcceleratorType value) {
+      if (acceleratorTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.add(value);
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder addAcceleratorTypes(
+        int index, com.google.cloud.tpu.v2alpha1.AcceleratorType value) {
+      if (acceleratorTypesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.add(index, value);
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder addAcceleratorTypes(
+        com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder builderForValue) {
+      if (acceleratorTypesBuilder_ == null) {
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.add(builderForValue.build());
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder addAcceleratorTypes(
+        int index, com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder builderForValue) {
+      if (acceleratorTypesBuilder_ == null) {
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder addAllAcceleratorTypes(
+        java.lang.Iterable<? extends com.google.cloud.tpu.v2alpha1.AcceleratorType> values) {
+      if (acceleratorTypesBuilder_ == null) {
+        ensureAcceleratorTypesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, acceleratorTypes_);
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder clearAcceleratorTypes() {
+      if (acceleratorTypesBuilder_ == null) {
+        acceleratorTypes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public Builder removeAcceleratorTypes(int index) {
+      if (acceleratorTypesBuilder_ == null) {
+        ensureAcceleratorTypesIsMutable();
+        acceleratorTypes_.remove(index);
+        onChanged();
+      } else {
+        acceleratorTypesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder getAcceleratorTypesBuilder(
+        int index) {
+      return getAcceleratorTypesFieldBuilder().getBuilder(index);
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.AcceleratorTypeOrBuilder getAcceleratorTypesOrBuilder(
+        int index) {
+      if (acceleratorTypesBuilder_ == null) {
+        return acceleratorTypes_.get(index);  } else {
+        return acceleratorTypesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.tpu.v2alpha1.AcceleratorTypeOrBuilder> 
+         getAcceleratorTypesOrBuilderList() {
+      if (acceleratorTypesBuilder_ != null) {
+        return acceleratorTypesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(acceleratorTypes_);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder addAcceleratorTypesBuilder() {
+      return getAcceleratorTypesFieldBuilder().addBuilder(
+          com.google.cloud.tpu.v2alpha1.AcceleratorType.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder addAcceleratorTypesBuilder(
+        int index) {
+      return getAcceleratorTypesFieldBuilder().addBuilder(
+          index, com.google.cloud.tpu.v2alpha1.AcceleratorType.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder> 
+         getAcceleratorTypesBuilderList() {
+      return getAcceleratorTypesFieldBuilder().getBuilderList();
+    }
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.AcceleratorType, com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder, com.google.cloud.tpu.v2alpha1.AcceleratorTypeOrBuilder> 
+        getAcceleratorTypesFieldBuilder() {
+      if (acceleratorTypesBuilder_ == null) {
+        acceleratorTypesBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.AcceleratorType, com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder, com.google.cloud.tpu.v2alpha1.AcceleratorTypeOrBuilder>(
+                acceleratorTypes_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        acceleratorTypes_ = null;
+      }
+      return acceleratorTypesBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString
+        getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+      
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.LazyStringList unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+    private void ensureUnreachableIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        unreachable_ = new com.google.protobuf.LazyStringArrayList(unreachable_);
+        bitField0_ |= 0x00000002;
+       }
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return A list containing the unreachable.
+     */
+    public com.google.protobuf.ProtocolStringList
+        getUnreachableList() {
+      return unreachable_.getUnmodifiableView();
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return The count of unreachable.
+     */
+    public int getUnreachableCount() {
+      return unreachable_.size();
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index of the element to return.
+     * @return The unreachable at the given index.
+     */
+    public java.lang.String getUnreachable(int index) {
+      return unreachable_.get(index);
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index of the value to return.
+     * @return The bytes of the unreachable at the given index.
+     */
+    public com.google.protobuf.ByteString
+        getUnreachableBytes(int index) {
+      return unreachable_.getByteString(index);
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index to set the value at.
+     * @param value The unreachable to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUnreachable(
+        int index, java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureUnreachableIsMutable();
+      unreachable_.set(index, value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param value The unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addUnreachable(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureUnreachableIsMutable();
+      unreachable_.add(value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param values The unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllUnreachable(
+        java.lang.Iterable<java.lang.String> values) {
+      ensureUnreachableIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(
+          values, unreachable_);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearUnreachable() {
+      unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000002);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param value The bytes of the unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addUnreachableBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      ensureUnreachableIsMutable();
+      unreachable_.add(value);
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse)
+  private static final com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListAcceleratorTypesResponse>
+      PARSER = new com.google.protobuf.AbstractParser<ListAcceleratorTypesResponse>() {
+    @java.lang.Override
+    public ListAcceleratorTypesResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ListAcceleratorTypesResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ListAcceleratorTypesResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListAcceleratorTypesResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponseOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponseOrBuilder.java
new file mode 100644
index 000000000000..9bcc0f264186
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponseOrBuilder.java
@@ -0,0 +1,114 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface ListAcceleratorTypesResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+   */
+  java.util.List<com.google.cloud.tpu.v2alpha1.AcceleratorType> 
+      getAcceleratorTypesList();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.AcceleratorType getAcceleratorTypes(int index);
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+   */
+  int getAcceleratorTypesCount();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.tpu.v2alpha1.AcceleratorTypeOrBuilder> 
+      getAcceleratorTypesOrBuilderList();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.AcceleratorTypeOrBuilder getAcceleratorTypesOrBuilder(
+      int index);
+
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString
+      getNextPageTokenBytes();
+
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return A list containing the unreachable.
+   */
+  java.util.List<java.lang.String>
+      getUnreachableList();
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return The count of unreachable.
+   */
+  int getUnreachableCount();
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the element to return.
+   * @return The unreachable at the given index.
+   */
+  java.lang.String getUnreachable(int index);
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the value to return.
+   * @return The bytes of the unreachable at the given index.
+   */
+  com.google.protobuf.ByteString
+      getUnreachableBytes(int index);
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequest.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequest.java
new file mode 100644
index 000000000000..24a7ec7c2378
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequest.java
@@ -0,0 +1,841 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Request for [ListNodes][google.cloud.tpu.v2alpha1.Tpu.ListNodes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.ListNodesRequest}
+ */
+public final class ListNodesRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.ListNodesRequest)
+    ListNodesRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ListNodesRequest.newBuilder() to construct.
+  private ListNodesRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ListNodesRequest() {
+    parent_ = "";
+    pageToken_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ListNodesRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ListNodesRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            parent_ = s;
+            break;
+          }
+          case 16: {
+
+            pageSize_ = input.readInt32();
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            pageToken_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListNodesRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListNodesRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.ListNodesRequest.class, com.google.cloud.tpu.v2alpha1.ListNodesRequest.Builder.class);
+  }
+
+  public static final int PARENT_FIELD_NUMBER = 1;
+  private volatile java.lang.Object parent_;
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  @java.lang.Override
+  public java.lang.String getParent() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      parent_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getParentBytes() {
+    java.lang.Object ref = parent_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      parent_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PAGE_SIZE_FIELD_NUMBER = 2;
+  private int pageSize_;
+  /**
+   * <pre>
+   * The maximum number of items to return.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The pageToken.
+   */
+  @java.lang.Override
+  public java.lang.String getPageToken() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      pageToken_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The bytes for pageToken.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getPageTokenBytes() {
+    java.lang.Object ref = pageToken_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      pageToken_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
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+      com.google.protobuf.ByteString data)
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+  public static com.google.cloud.tpu.v2alpha1.ListNodesRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+  public static com.google.cloud.tpu.v2alpha1.ListNodesRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListNodesRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListNodesRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v2alpha1.ListNodesRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+  public static com.google.cloud.tpu.v2alpha1.ListNodesRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListNodesRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListNodesRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListNodesRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.ListNodesRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for [ListNodes][google.cloud.tpu.v2alpha1.Tpu.ListNodes].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.ListNodesRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.ListNodesRequest)
+      com.google.cloud.tpu.v2alpha1.ListNodesRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListNodesRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
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+              com.google.cloud.tpu.v2alpha1.ListNodesRequest.class, com.google.cloud.tpu.v2alpha1.ListNodesRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.ListNodesRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
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+    private void maybeForceBuilderInitialization() {
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+    @java.lang.Override
+    public Builder clear() {
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+      parent_ = "";
+
+      pageSize_ = 0;
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+      pageToken_ = "";
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+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListNodesRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ListNodesRequest getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.ListNodesRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ListNodesRequest build() {
+      com.google.cloud.tpu.v2alpha1.ListNodesRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ListNodesRequest buildPartial() {
+      com.google.cloud.tpu.v2alpha1.ListNodesRequest result = new com.google.cloud.tpu.v2alpha1.ListNodesRequest(this);
+      result.parent_ = parent_;
+      result.pageSize_ = pageSize_;
+      result.pageToken_ = pageToken_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
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+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
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+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.ListNodesRequest) {
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+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.ListNodesRequest other) {
+      if (other == com.google.cloud.tpu.v2alpha1.ListNodesRequest.getDefaultInstance()) return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.getPageSize() != 0) {
+        setPageSize(other.getPageSize());
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+      if (!other.getPageToken().isEmpty()) {
+        pageToken_ = other.pageToken_;
+        onChanged();
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.ListNodesRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.ListNodesRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString
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+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
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+        return b;
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+        return (com.google.protobuf.ByteString) ref;
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+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+      
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
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+  checkByteStringIsUtf8(value);
+      
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_ ;
+    /**
+     * <pre>
+     * The maximum number of items to return.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     * <pre>
+     * The maximum number of items to return.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+      
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The maximum number of items to return.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+      
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString
+        getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+      
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.ListNodesRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.ListNodesRequest)
+  private static final com.google.cloud.tpu.v2alpha1.ListNodesRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.ListNodesRequest();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.ListNodesRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListNodesRequest>
+      PARSER = new com.google.protobuf.AbstractParser<ListNodesRequest>() {
+    @java.lang.Override
+    public ListNodesRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ListNodesRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ListNodesRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListNodesRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ListNodesRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequestOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequestOrBuilder.java
new file mode 100644
index 000000000000..6ccc65aa25cd
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesRequestOrBuilder.java
@@ -0,0 +1,59 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface ListNodesRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.ListNodesRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString
+      getParentBytes();
+
+  /**
+   * <pre>
+   * The maximum number of items to return.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString
+      getPageTokenBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponse.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponse.java
new file mode 100644
index 000000000000..36ae29aa6c1a
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponse.java
@@ -0,0 +1,1282 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Response for [ListNodes][google.cloud.tpu.v2alpha1.Tpu.ListNodes].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.ListNodesResponse}
+ */
+public final class ListNodesResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.ListNodesResponse)
+    ListNodesResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ListNodesResponse.newBuilder() to construct.
+  private ListNodesResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ListNodesResponse() {
+    nodes_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+    unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ListNodesResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ListNodesResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
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+        switch (tag) {
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+            break;
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+              mutable_bitField0_ |= 0x00000001;
+            }
+            nodes_.add(
+                input.readMessage(com.google.cloud.tpu.v2alpha1.Node.parser(), extensionRegistry));
+            break;
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+
+            nextPageToken_ = s;
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+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
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+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
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+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListNodesResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
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+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.ListNodesResponse.class, com.google.cloud.tpu.v2alpha1.ListNodesResponse.Builder.class);
+  }
+
+  public static final int NODES_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.tpu.v2alpha1.Node> nodes_;
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.tpu.v2alpha1.Node> getNodesList() {
+    return nodes_;
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.tpu.v2alpha1.NodeOrBuilder> 
+      getNodesOrBuilderList() {
+    return nodes_;
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+   */
+  @java.lang.Override
+  public int getNodesCount() {
+    return nodes_.size();
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.Node getNodes(int index) {
+    return nodes_.get(index);
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.NodeOrBuilder getNodesOrBuilder(
+      int index) {
+    return nodes_.get(index);
+  }
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+  public java.lang.String getNextPageToken() {
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+   * </pre>
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+   * <code>repeated string unreachable = 3;</code>
+   * @return The count of unreachable.
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+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the element to return.
+   * @return The unreachable at the given index.
+   */
+  public java.lang.String getUnreachable(int index) {
+    return unreachable_.get(index);
+  }
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the value to return.
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+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
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+  @java.lang.Override
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+                      throws java.io.IOException {
+    for (int i = 0; i < nodes_.size(); i++) {
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+    unknownFields.writeTo(output);
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+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    for (int i = 0; i < nodes_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(1, nodes_.get(i));
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+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
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+      size += dataSize;
+      size += 1 * getUnreachableList().size();
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.ListNodesResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.ListNodesResponse other = (com.google.cloud.tpu.v2alpha1.ListNodesResponse) obj;
+
+    if (!getNodesList()
+        .equals(other.getNodesList())) return false;
+    if (!getNextPageToken()
+        .equals(other.getNextPageToken())) return false;
+    if (!getUnreachableList()
+        .equals(other.getUnreachableList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getNodesCount() > 0) {
+      hash = (37 * hash) + NODES_FIELD_NUMBER;
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+    if (getUnreachableCount() > 0) {
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+      hash = (53 * hash) + getUnreachableList().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
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+
+  public static com.google.cloud.tpu.v2alpha1.ListNodesResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListNodesResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListNodesResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListNodesResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListNodesResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListNodesResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
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+      throws java.io.IOException {
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+  public static com.google.cloud.tpu.v2alpha1.ListNodesResponse parseFrom(
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListNodesResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListNodesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListNodesResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.ListNodesResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Response for [ListNodes][google.cloud.tpu.v2alpha1.Tpu.ListNodes].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.ListNodesResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.ListNodesResponse)
+      com.google.cloud.tpu.v2alpha1.ListNodesResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListNodesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
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+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.ListNodesResponse.class, com.google.cloud.tpu.v2alpha1.ListNodesResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.ListNodesResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+        getNodesFieldBuilder();
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (nodesBuilder_ == null) {
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+
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+      bitField0_ = (bitField0_ & ~0x00000002);
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListNodesResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ListNodesResponse getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.ListNodesResponse.getDefaultInstance();
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+    @java.lang.Override
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+        return this;
+      }
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+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.ListNodesResponse other) {
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+      }
+      if (!other.unreachable_.isEmpty()) {
+        if (unreachable_.isEmpty()) {
+          unreachable_ = other.unreachable_;
+          bitField0_ = (bitField0_ & ~0x00000002);
+        } else {
+          ensureUnreachableIsMutable();
+          unreachable_.addAll(other.unreachable_);
+        }
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.ListNodesResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.ListNodesResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.tpu.v2alpha1.Node> nodes_ =
+      java.util.Collections.emptyList();
+    private void ensureNodesIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        nodes_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.Node>(nodes_);
+        bitField0_ |= 0x00000001;
+       }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.Node, com.google.cloud.tpu.v2alpha1.Node.Builder, com.google.cloud.tpu.v2alpha1.NodeOrBuilder> nodesBuilder_;
+
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.Node> getNodesList() {
+      if (nodesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(nodes_);
+      } else {
+        return nodesBuilder_.getMessageList();
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public int getNodesCount() {
+      if (nodesBuilder_ == null) {
+        return nodes_.size();
+      } else {
+        return nodesBuilder_.getCount();
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.Node getNodes(int index) {
+      if (nodesBuilder_ == null) {
+        return nodes_.get(index);
+      } else {
+        return nodesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public Builder setNodes(
+        int index, com.google.cloud.tpu.v2alpha1.Node value) {
+      if (nodesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureNodesIsMutable();
+        nodes_.set(index, value);
+        onChanged();
+      } else {
+        nodesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public Builder setNodes(
+        int index, com.google.cloud.tpu.v2alpha1.Node.Builder builderForValue) {
+      if (nodesBuilder_ == null) {
+        ensureNodesIsMutable();
+        nodes_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        nodesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public Builder addNodes(com.google.cloud.tpu.v2alpha1.Node value) {
+      if (nodesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureNodesIsMutable();
+        nodes_.add(value);
+        onChanged();
+      } else {
+        nodesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public Builder addNodes(
+        int index, com.google.cloud.tpu.v2alpha1.Node value) {
+      if (nodesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureNodesIsMutable();
+        nodes_.add(index, value);
+        onChanged();
+      } else {
+        nodesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public Builder addNodes(
+        com.google.cloud.tpu.v2alpha1.Node.Builder builderForValue) {
+      if (nodesBuilder_ == null) {
+        ensureNodesIsMutable();
+        nodes_.add(builderForValue.build());
+        onChanged();
+      } else {
+        nodesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public Builder addNodes(
+        int index, com.google.cloud.tpu.v2alpha1.Node.Builder builderForValue) {
+      if (nodesBuilder_ == null) {
+        ensureNodesIsMutable();
+        nodes_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        nodesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public Builder addAllNodes(
+        java.lang.Iterable<? extends com.google.cloud.tpu.v2alpha1.Node> values) {
+      if (nodesBuilder_ == null) {
+        ensureNodesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, nodes_);
+        onChanged();
+      } else {
+        nodesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public Builder clearNodes() {
+      if (nodesBuilder_ == null) {
+        nodes_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        nodesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public Builder removeNodes(int index) {
+      if (nodesBuilder_ == null) {
+        ensureNodesIsMutable();
+        nodes_.remove(index);
+        onChanged();
+      } else {
+        nodesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.Node.Builder getNodesBuilder(
+        int index) {
+      return getNodesFieldBuilder().getBuilder(index);
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.NodeOrBuilder getNodesOrBuilder(
+        int index) {
+      if (nodesBuilder_ == null) {
+        return nodes_.get(index);  } else {
+        return nodesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.tpu.v2alpha1.NodeOrBuilder> 
+         getNodesOrBuilderList() {
+      if (nodesBuilder_ != null) {
+        return nodesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(nodes_);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.Node.Builder addNodesBuilder() {
+      return getNodesFieldBuilder().addBuilder(
+          com.google.cloud.tpu.v2alpha1.Node.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.Node.Builder addNodesBuilder(
+        int index) {
+      return getNodesFieldBuilder().addBuilder(
+          index, com.google.cloud.tpu.v2alpha1.Node.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.Node.Builder> 
+         getNodesBuilderList() {
+      return getNodesFieldBuilder().getBuilderList();
+    }
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.Node, com.google.cloud.tpu.v2alpha1.Node.Builder, com.google.cloud.tpu.v2alpha1.NodeOrBuilder> 
+        getNodesFieldBuilder() {
+      if (nodesBuilder_ == null) {
+        nodesBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.Node, com.google.cloud.tpu.v2alpha1.Node.Builder, com.google.cloud.tpu.v2alpha1.NodeOrBuilder>(
+                nodes_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        nodes_ = null;
+      }
+      return nodesBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString
+        getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+      
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.LazyStringList unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+    private void ensureUnreachableIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        unreachable_ = new com.google.protobuf.LazyStringArrayList(unreachable_);
+        bitField0_ |= 0x00000002;
+       }
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return A list containing the unreachable.
+     */
+    public com.google.protobuf.ProtocolStringList
+        getUnreachableList() {
+      return unreachable_.getUnmodifiableView();
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return The count of unreachable.
+     */
+    public int getUnreachableCount() {
+      return unreachable_.size();
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index of the element to return.
+     * @return The unreachable at the given index.
+     */
+    public java.lang.String getUnreachable(int index) {
+      return unreachable_.get(index);
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index of the value to return.
+     * @return The bytes of the unreachable at the given index.
+     */
+    public com.google.protobuf.ByteString
+        getUnreachableBytes(int index) {
+      return unreachable_.getByteString(index);
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index to set the value at.
+     * @param value The unreachable to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUnreachable(
+        int index, java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureUnreachableIsMutable();
+      unreachable_.set(index, value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param value The unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addUnreachable(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureUnreachableIsMutable();
+      unreachable_.add(value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param values The unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllUnreachable(
+        java.lang.Iterable<java.lang.String> values) {
+      ensureUnreachableIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(
+          values, unreachable_);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearUnreachable() {
+      unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000002);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param value The bytes of the unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addUnreachableBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      ensureUnreachableIsMutable();
+      unreachable_.add(value);
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.ListNodesResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.ListNodesResponse)
+  private static final com.google.cloud.tpu.v2alpha1.ListNodesResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.ListNodesResponse();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.ListNodesResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListNodesResponse>
+      PARSER = new com.google.protobuf.AbstractParser<ListNodesResponse>() {
+    @java.lang.Override
+    public ListNodesResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ListNodesResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ListNodesResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListNodesResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ListNodesResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponseOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponseOrBuilder.java
new file mode 100644
index 000000000000..90a441f2b160
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListNodesResponseOrBuilder.java
@@ -0,0 +1,114 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface ListNodesResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.ListNodesResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+   */
+  java.util.List<com.google.cloud.tpu.v2alpha1.Node> 
+      getNodesList();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.Node getNodes(int index);
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+   */
+  int getNodesCount();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.tpu.v2alpha1.NodeOrBuilder> 
+      getNodesOrBuilderList();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Node nodes = 1;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.NodeOrBuilder getNodesOrBuilder(
+      int index);
+
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString
+      getNextPageTokenBytes();
+
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return A list containing the unreachable.
+   */
+  java.util.List<java.lang.String>
+      getUnreachableList();
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return The count of unreachable.
+   */
+  int getUnreachableCount();
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the element to return.
+   * @return The unreachable at the given index.
+   */
+  java.lang.String getUnreachable(int index);
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the value to return.
+   * @return The bytes of the unreachable at the given index.
+   */
+  com.google.protobuf.ByteString
+      getUnreachableBytes(int index);
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequest.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequest.java
new file mode 100644
index 000000000000..37a330249267
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequest.java
@@ -0,0 +1,1175 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Request for
+ * [ListRuntimeVersions][google.cloud.tpu.v2alpha1.Tpu.ListRuntimeVersions].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest}
+ */
+public final class ListRuntimeVersionsRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest)
+    ListRuntimeVersionsRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ListRuntimeVersionsRequest.newBuilder() to construct.
+  private ListRuntimeVersionsRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ListRuntimeVersionsRequest() {
+    parent_ = "";
+    pageToken_ = "";
+    filter_ = "";
+    orderBy_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ListRuntimeVersionsRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ListRuntimeVersionsRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
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+            break;
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+
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+          default: {
+            if (!parseUnknownField(
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+            break;
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+      throw e.setUnfinishedMessage(this);
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+      makeExtensionsImmutable();
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+      getDescriptor() {
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+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
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+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
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+  public java.lang.String getParent() {
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+   *
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+  private int pageSize_;
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+   * The maximum number of items to return.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   * @return The pageSize.
+   */
+  @java.lang.Override
+  public int getPageSize() {
+    return pageSize_;
+  }
+
+  public static final int PAGE_TOKEN_FIELD_NUMBER = 3;
+  private volatile java.lang.Object pageToken_;
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The pageToken.
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+  public java.lang.String getPageToken() {
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+      pageToken_ = s;
+      return s;
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+  /**
+   * <pre>
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+   * </pre>
+   *
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+   * @return The bytes for pageToken.
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+      return b;
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+   * </pre>
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+   * <code>string filter = 5;</code>
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+  public com.google.protobuf.ByteString
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+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
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+      filter_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ORDER_BY_FIELD_NUMBER = 6;
+  private volatile java.lang.Object orderBy_;
+  /**
+   * <pre>
+   * Sort results.
+   * </pre>
+   *
+   * <code>string order_by = 6;</code>
+   * @return The orderBy.
+   */
+  @java.lang.Override
+  public java.lang.String getOrderBy() {
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+      java.lang.String s = bs.toStringUtf8();
+      orderBy_ = s;
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+   * Sort results.
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+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
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+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
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+  @java.lang.Override
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+    return PARSER.parseFrom(data, extensionRegistry);
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+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
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+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
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+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
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+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for
+   * [ListRuntimeVersions][google.cloud.tpu.v2alpha1.Tpu.ListRuntimeVersions].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest)
+      com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListRuntimeVersionsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest other) {
+      if (other == com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest.getDefaultInstance()) return this;
+      if (!other.getParent().isEmpty()) {
+        parent_ = other.parent_;
+        onChanged();
+      }
+      if (other.getPageSize() != 0) {
+        setPageSize(other.getPageSize());
+      }
+      if (!other.getPageToken().isEmpty()) {
+        pageToken_ = other.pageToken_;
+        onChanged();
+      }
+      if (!other.getFilter().isEmpty()) {
+        filter_ = other.filter_;
+        onChanged();
+      }
+      if (!other.getOrderBy().isEmpty()) {
+        orderBy_ = other.orderBy_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object parent_ = "";
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The parent.
+     */
+    public java.lang.String getParent() {
+      java.lang.Object ref = parent_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        parent_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return The bytes for parent.
+     */
+    public com.google.protobuf.ByteString
+        getParentBytes() {
+      java.lang.Object ref = parent_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        parent_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParent(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearParent() {
+      
+      parent_ = getDefaultInstance().getParent();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The parent resource name.
+     * </pre>
+     *
+     * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+     * @param value The bytes for parent to set.
+     * @return This builder for chaining.
+     */
+    public Builder setParentBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      parent_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int pageSize_ ;
+    /**
+     * <pre>
+     * The maximum number of items to return.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     * @return The pageSize.
+     */
+    @java.lang.Override
+    public int getPageSize() {
+      return pageSize_;
+    }
+    /**
+     * <pre>
+     * The maximum number of items to return.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     * @param value The pageSize to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageSize(int value) {
+      
+      pageSize_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The maximum number of items to return.
+     * </pre>
+     *
+     * <code>int32 page_size = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageSize() {
+      
+      pageSize_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object pageToken_ = "";
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @return The pageToken.
+     */
+    public java.lang.String getPageToken() {
+      java.lang.Object ref = pageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        pageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @return The bytes for pageToken.
+     */
+    public com.google.protobuf.ByteString
+        getPageTokenBytes() {
+      java.lang.Object ref = pageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        pageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @param value The pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageToken(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPageToken() {
+      
+      pageToken_ = getDefaultInstance().getPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next_page_token value returned from a previous List request, if any.
+     * </pre>
+     *
+     * <code>string page_token = 3;</code>
+     * @param value The bytes for pageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPageTokenBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      pageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object filter_ = "";
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @return The filter.
+     */
+    public java.lang.String getFilter() {
+      java.lang.Object ref = filter_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        filter_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @return The bytes for filter.
+     */
+    public com.google.protobuf.ByteString
+        getFilterBytes() {
+      java.lang.Object ref = filter_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        filter_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @param value The filter to set.
+     * @return This builder for chaining.
+     */
+    public Builder setFilter(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      filter_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearFilter() {
+      
+      filter_ = getDefaultInstance().getFilter();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * List filter.
+     * </pre>
+     *
+     * <code>string filter = 5;</code>
+     * @param value The bytes for filter to set.
+     * @return This builder for chaining.
+     */
+    public Builder setFilterBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      filter_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object orderBy_ = "";
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @return The orderBy.
+     */
+    public java.lang.String getOrderBy() {
+      java.lang.Object ref = orderBy_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        orderBy_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @return The bytes for orderBy.
+     */
+    public com.google.protobuf.ByteString
+        getOrderByBytes() {
+      java.lang.Object ref = orderBy_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        orderBy_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @param value The orderBy to set.
+     * @return This builder for chaining.
+     */
+    public Builder setOrderBy(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      orderBy_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearOrderBy() {
+      
+      orderBy_ = getDefaultInstance().getOrderBy();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Sort results.
+     * </pre>
+     *
+     * <code>string order_by = 6;</code>
+     * @param value The bytes for orderBy to set.
+     * @return This builder for chaining.
+     */
+    public Builder setOrderByBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      orderBy_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest)
+  private static final com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListRuntimeVersionsRequest>
+      PARSER = new com.google.protobuf.AbstractParser<ListRuntimeVersionsRequest>() {
+    @java.lang.Override
+    public ListRuntimeVersionsRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ListRuntimeVersionsRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ListRuntimeVersionsRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListRuntimeVersionsRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequestOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequestOrBuilder.java
new file mode 100644
index 000000000000..9b0732a3aba4
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsRequestOrBuilder.java
@@ -0,0 +1,99 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface ListRuntimeVersionsRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The parent.
+   */
+  java.lang.String getParent();
+  /**
+   * <pre>
+   * Required. The parent resource name.
+   * </pre>
+   *
+   * <code>string parent = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }</code>
+   * @return The bytes for parent.
+   */
+  com.google.protobuf.ByteString
+      getParentBytes();
+
+  /**
+   * <pre>
+   * The maximum number of items to return.
+   * </pre>
+   *
+   * <code>int32 page_size = 2;</code>
+   * @return The pageSize.
+   */
+  int getPageSize();
+
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The pageToken.
+   */
+  java.lang.String getPageToken();
+  /**
+   * <pre>
+   * The next_page_token value returned from a previous List request, if any.
+   * </pre>
+   *
+   * <code>string page_token = 3;</code>
+   * @return The bytes for pageToken.
+   */
+  com.google.protobuf.ByteString
+      getPageTokenBytes();
+
+  /**
+   * <pre>
+   * List filter.
+   * </pre>
+   *
+   * <code>string filter = 5;</code>
+   * @return The filter.
+   */
+  java.lang.String getFilter();
+  /**
+   * <pre>
+   * List filter.
+   * </pre>
+   *
+   * <code>string filter = 5;</code>
+   * @return The bytes for filter.
+   */
+  com.google.protobuf.ByteString
+      getFilterBytes();
+
+  /**
+   * <pre>
+   * Sort results.
+   * </pre>
+   *
+   * <code>string order_by = 6;</code>
+   * @return The orderBy.
+   */
+  java.lang.String getOrderBy();
+  /**
+   * <pre>
+   * Sort results.
+   * </pre>
+   *
+   * <code>string order_by = 6;</code>
+   * @return The bytes for orderBy.
+   */
+  com.google.protobuf.ByteString
+      getOrderByBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponse.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponse.java
new file mode 100644
index 000000000000..a9a898a8c194
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponse.java
@@ -0,0 +1,1284 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Response for
+ * [ListRuntimeVersions][google.cloud.tpu.v2alpha1.Tpu.ListRuntimeVersions].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse}
+ */
+public final class ListRuntimeVersionsResponse extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse)
+    ListRuntimeVersionsResponseOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ListRuntimeVersionsResponse.newBuilder() to construct.
+  private ListRuntimeVersionsResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ListRuntimeVersionsResponse() {
+    runtimeVersions_ = java.util.Collections.emptyList();
+    nextPageToken_ = "";
+    unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ListRuntimeVersionsResponse();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ListRuntimeVersionsResponse(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+              runtimeVersions_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.RuntimeVersion>();
+              mutable_bitField0_ |= 0x00000001;
+            }
+            runtimeVersions_.add(
+                input.readMessage(com.google.cloud.tpu.v2alpha1.RuntimeVersion.parser(), extensionRegistry));
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            nextPageToken_ = s;
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+            if (!((mutable_bitField0_ & 0x00000002) != 0)) {
+              unreachable_ = new com.google.protobuf.LazyStringArrayList();
+              mutable_bitField0_ |= 0x00000002;
+            }
+            unreachable_.add(s);
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
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+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListRuntimeVersionsResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
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+            com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse.class, com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse.Builder.class);
+  }
+
+  public static final int RUNTIME_VERSIONS_FIELD_NUMBER = 1;
+  private java.util.List<com.google.cloud.tpu.v2alpha1.RuntimeVersion> runtimeVersions_;
+  /**
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+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.tpu.v2alpha1.RuntimeVersion> getRuntimeVersionsList() {
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+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.tpu.v2alpha1.RuntimeVersionOrBuilder> 
+      getRuntimeVersionsOrBuilderList() {
+    return runtimeVersions_;
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+   */
+  @java.lang.Override
+  public int getRuntimeVersionsCount() {
+    return runtimeVersions_.size();
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.RuntimeVersion getRuntimeVersions(int index) {
+    return runtimeVersions_.get(index);
+  }
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.RuntimeVersionOrBuilder getRuntimeVersionsOrBuilder(
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+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
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+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse other = (com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse) obj;
+
+    if (!getRuntimeVersionsList()
+        .equals(other.getRuntimeVersionsList())) return false;
+    if (!getNextPageToken()
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+    if (!getUnreachableList()
+        .equals(other.getUnreachableList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
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+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (getRuntimeVersionsCount() > 0) {
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+    if (getUnreachableCount() > 0) {
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+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
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+
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Response for
+   * [ListRuntimeVersions][google.cloud.tpu.v2alpha1.Tpu.ListRuntimeVersions].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse)
+      com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListRuntimeVersionsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListRuntimeVersionsResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse.class, com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+        getRuntimeVersionsFieldBuilder();
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (runtimeVersionsBuilder_ == null) {
+        runtimeVersions_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      } else {
+        runtimeVersionsBuilder_.clear();
+      }
+      nextPageToken_ = "";
+
+      unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000002);
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ListRuntimeVersionsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse build() {
+      com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse buildPartial() {
+      com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse result = new com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse(this);
+      int from_bitField0_ = bitField0_;
+      if (runtimeVersionsBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)) {
+          runtimeVersions_ = java.util.Collections.unmodifiableList(runtimeVersions_);
+          bitField0_ = (bitField0_ & ~0x00000001);
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+        result.runtimeVersions_ = runtimeVersions_;
+      } else {
+        result.runtimeVersions_ = runtimeVersionsBuilder_.build();
+      }
+      result.nextPageToken_ = nextPageToken_;
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+        bitField0_ = (bitField0_ & ~0x00000002);
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+      result.unreachable_ = unreachable_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
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+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
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+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
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+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse other) {
+      if (other == com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse.getDefaultInstance()) return this;
+      if (runtimeVersionsBuilder_ == null) {
+        if (!other.runtimeVersions_.isEmpty()) {
+          if (runtimeVersions_.isEmpty()) {
+            runtimeVersions_ = other.runtimeVersions_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureRuntimeVersionsIsMutable();
+            runtimeVersions_.addAll(other.runtimeVersions_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.runtimeVersions_.isEmpty()) {
+          if (runtimeVersionsBuilder_.isEmpty()) {
+            runtimeVersionsBuilder_.dispose();
+            runtimeVersionsBuilder_ = null;
+            runtimeVersions_ = other.runtimeVersions_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            runtimeVersionsBuilder_ = 
+              com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
+                 getRuntimeVersionsFieldBuilder() : null;
+          } else {
+            runtimeVersionsBuilder_.addAllMessages(other.runtimeVersions_);
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+        }
+      }
+      if (!other.getNextPageToken().isEmpty()) {
+        nextPageToken_ = other.nextPageToken_;
+        onChanged();
+      }
+      if (!other.unreachable_.isEmpty()) {
+        if (unreachable_.isEmpty()) {
+          unreachable_ = other.unreachable_;
+          bitField0_ = (bitField0_ & ~0x00000002);
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+          unreachable_.addAll(other.unreachable_);
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+        onChanged();
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+    private int bitField0_;
+
+    private java.util.List<com.google.cloud.tpu.v2alpha1.RuntimeVersion> runtimeVersions_ =
+      java.util.Collections.emptyList();
+    private void ensureRuntimeVersionsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        runtimeVersions_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.RuntimeVersion>(runtimeVersions_);
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+    }
+
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+        com.google.cloud.tpu.v2alpha1.RuntimeVersion, com.google.cloud.tpu.v2alpha1.RuntimeVersion.Builder, com.google.cloud.tpu.v2alpha1.RuntimeVersionOrBuilder> runtimeVersionsBuilder_;
+
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.RuntimeVersion> getRuntimeVersionsList() {
+      if (runtimeVersionsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(runtimeVersions_);
+      } else {
+        return runtimeVersionsBuilder_.getMessageList();
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public int getRuntimeVersionsCount() {
+      if (runtimeVersionsBuilder_ == null) {
+        return runtimeVersions_.size();
+      } else {
+        return runtimeVersionsBuilder_.getCount();
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.RuntimeVersion getRuntimeVersions(int index) {
+      if (runtimeVersionsBuilder_ == null) {
+        return runtimeVersions_.get(index);
+      } else {
+        return runtimeVersionsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public Builder setRuntimeVersions(
+        int index, com.google.cloud.tpu.v2alpha1.RuntimeVersion value) {
+      if (runtimeVersionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureRuntimeVersionsIsMutable();
+        runtimeVersions_.set(index, value);
+        onChanged();
+      } else {
+        runtimeVersionsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public Builder setRuntimeVersions(
+        int index, com.google.cloud.tpu.v2alpha1.RuntimeVersion.Builder builderForValue) {
+      if (runtimeVersionsBuilder_ == null) {
+        ensureRuntimeVersionsIsMutable();
+        runtimeVersions_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        runtimeVersionsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public Builder addRuntimeVersions(com.google.cloud.tpu.v2alpha1.RuntimeVersion value) {
+      if (runtimeVersionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureRuntimeVersionsIsMutable();
+        runtimeVersions_.add(value);
+        onChanged();
+      } else {
+        runtimeVersionsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public Builder addRuntimeVersions(
+        int index, com.google.cloud.tpu.v2alpha1.RuntimeVersion value) {
+      if (runtimeVersionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureRuntimeVersionsIsMutable();
+        runtimeVersions_.add(index, value);
+        onChanged();
+      } else {
+        runtimeVersionsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public Builder addRuntimeVersions(
+        com.google.cloud.tpu.v2alpha1.RuntimeVersion.Builder builderForValue) {
+      if (runtimeVersionsBuilder_ == null) {
+        ensureRuntimeVersionsIsMutable();
+        runtimeVersions_.add(builderForValue.build());
+        onChanged();
+      } else {
+        runtimeVersionsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public Builder addRuntimeVersions(
+        int index, com.google.cloud.tpu.v2alpha1.RuntimeVersion.Builder builderForValue) {
+      if (runtimeVersionsBuilder_ == null) {
+        ensureRuntimeVersionsIsMutable();
+        runtimeVersions_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        runtimeVersionsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public Builder addAllRuntimeVersions(
+        java.lang.Iterable<? extends com.google.cloud.tpu.v2alpha1.RuntimeVersion> values) {
+      if (runtimeVersionsBuilder_ == null) {
+        ensureRuntimeVersionsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, runtimeVersions_);
+        onChanged();
+      } else {
+        runtimeVersionsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public Builder clearRuntimeVersions() {
+      if (runtimeVersionsBuilder_ == null) {
+        runtimeVersions_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        runtimeVersionsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public Builder removeRuntimeVersions(int index) {
+      if (runtimeVersionsBuilder_ == null) {
+        ensureRuntimeVersionsIsMutable();
+        runtimeVersions_.remove(index);
+        onChanged();
+      } else {
+        runtimeVersionsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.RuntimeVersion.Builder getRuntimeVersionsBuilder(
+        int index) {
+      return getRuntimeVersionsFieldBuilder().getBuilder(index);
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.RuntimeVersionOrBuilder getRuntimeVersionsOrBuilder(
+        int index) {
+      if (runtimeVersionsBuilder_ == null) {
+        return runtimeVersions_.get(index);  } else {
+        return runtimeVersionsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public java.util.List<? extends com.google.cloud.tpu.v2alpha1.RuntimeVersionOrBuilder> 
+         getRuntimeVersionsOrBuilderList() {
+      if (runtimeVersionsBuilder_ != null) {
+        return runtimeVersionsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(runtimeVersions_);
+      }
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.RuntimeVersion.Builder addRuntimeVersionsBuilder() {
+      return getRuntimeVersionsFieldBuilder().addBuilder(
+          com.google.cloud.tpu.v2alpha1.RuntimeVersion.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.RuntimeVersion.Builder addRuntimeVersionsBuilder(
+        int index) {
+      return getRuntimeVersionsFieldBuilder().addBuilder(
+          index, com.google.cloud.tpu.v2alpha1.RuntimeVersion.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The listed nodes.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.RuntimeVersion.Builder> 
+         getRuntimeVersionsBuilderList() {
+      return getRuntimeVersionsFieldBuilder().getBuilderList();
+    }
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.RuntimeVersion, com.google.cloud.tpu.v2alpha1.RuntimeVersion.Builder, com.google.cloud.tpu.v2alpha1.RuntimeVersionOrBuilder> 
+        getRuntimeVersionsFieldBuilder() {
+      if (runtimeVersionsBuilder_ == null) {
+        runtimeVersionsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.RuntimeVersion, com.google.cloud.tpu.v2alpha1.RuntimeVersion.Builder, com.google.cloud.tpu.v2alpha1.RuntimeVersionOrBuilder>(
+                runtimeVersions_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        runtimeVersions_ = null;
+      }
+      return runtimeVersionsBuilder_;
+    }
+
+    private java.lang.Object nextPageToken_ = "";
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return The nextPageToken.
+     */
+    public java.lang.String getNextPageToken() {
+      java.lang.Object ref = nextPageToken_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        nextPageToken_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return The bytes for nextPageToken.
+     */
+    public com.google.protobuf.ByteString
+        getNextPageTokenBytes() {
+      java.lang.Object ref = nextPageToken_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        nextPageToken_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @param value The nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageToken(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNextPageToken() {
+      
+      nextPageToken_ = getDefaultInstance().getNextPageToken();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The next page token or empty if none.
+     * </pre>
+     *
+     * <code>string next_page_token = 2;</code>
+     * @param value The bytes for nextPageToken to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNextPageTokenBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      nextPageToken_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.LazyStringList unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+    private void ensureUnreachableIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        unreachable_ = new com.google.protobuf.LazyStringArrayList(unreachable_);
+        bitField0_ |= 0x00000002;
+       }
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return A list containing the unreachable.
+     */
+    public com.google.protobuf.ProtocolStringList
+        getUnreachableList() {
+      return unreachable_.getUnmodifiableView();
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return The count of unreachable.
+     */
+    public int getUnreachableCount() {
+      return unreachable_.size();
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index of the element to return.
+     * @return The unreachable at the given index.
+     */
+    public java.lang.String getUnreachable(int index) {
+      return unreachable_.get(index);
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index of the value to return.
+     * @return The bytes of the unreachable at the given index.
+     */
+    public com.google.protobuf.ByteString
+        getUnreachableBytes(int index) {
+      return unreachable_.getByteString(index);
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param index The index to set the value at.
+     * @param value The unreachable to set.
+     * @return This builder for chaining.
+     */
+    public Builder setUnreachable(
+        int index, java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureUnreachableIsMutable();
+      unreachable_.set(index, value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param value The unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addUnreachable(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureUnreachableIsMutable();
+      unreachable_.add(value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param values The unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllUnreachable(
+        java.lang.Iterable<java.lang.String> values) {
+      ensureUnreachableIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(
+          values, unreachable_);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearUnreachable() {
+      unreachable_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000002);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Locations that could not be reached.
+     * </pre>
+     *
+     * <code>repeated string unreachable = 3;</code>
+     * @param value The bytes of the unreachable to add.
+     * @return This builder for chaining.
+     */
+    public Builder addUnreachableBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      ensureUnreachableIsMutable();
+      unreachable_.add(value);
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse)
+  private static final com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ListRuntimeVersionsResponse>
+      PARSER = new com.google.protobuf.AbstractParser<ListRuntimeVersionsResponse>() {
+    @java.lang.Override
+    public ListRuntimeVersionsResponse parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ListRuntimeVersionsResponse(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ListRuntimeVersionsResponse> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ListRuntimeVersionsResponse> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponseOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponseOrBuilder.java
new file mode 100644
index 000000000000..2613e6e3d961
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListRuntimeVersionsResponseOrBuilder.java
@@ -0,0 +1,114 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface ListRuntimeVersionsResponseOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+   */
+  java.util.List<com.google.cloud.tpu.v2alpha1.RuntimeVersion> 
+      getRuntimeVersionsList();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.RuntimeVersion getRuntimeVersions(int index);
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+   */
+  int getRuntimeVersionsCount();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+   */
+  java.util.List<? extends com.google.cloud.tpu.v2alpha1.RuntimeVersionOrBuilder> 
+      getRuntimeVersionsOrBuilderList();
+  /**
+   * <pre>
+   * The listed nodes.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.RuntimeVersion runtime_versions = 1;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.RuntimeVersionOrBuilder getRuntimeVersionsOrBuilder(
+      int index);
+
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The nextPageToken.
+   */
+  java.lang.String getNextPageToken();
+  /**
+   * <pre>
+   * The next page token or empty if none.
+   * </pre>
+   *
+   * <code>string next_page_token = 2;</code>
+   * @return The bytes for nextPageToken.
+   */
+  com.google.protobuf.ByteString
+      getNextPageTokenBytes();
+
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return A list containing the unreachable.
+   */
+  java.util.List<java.lang.String>
+      getUnreachableList();
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @return The count of unreachable.
+   */
+  int getUnreachableCount();
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the element to return.
+   * @return The unreachable at the given index.
+   */
+  java.lang.String getUnreachable(int index);
+  /**
+   * <pre>
+   * Locations that could not be reached.
+   * </pre>
+   *
+   * <code>repeated string unreachable = 3;</code>
+   * @param index The index of the value to return.
+   * @return The bytes of the unreachable at the given index.
+   */
+  com.google.protobuf.ByteString
+      getUnreachableBytes(int index);
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/LocationName.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/LocationName.java
new file mode 100644
index 000000000000..b315fbb37d9d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/LocationName.java
@@ -0,0 +1,192 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+@Generated("by gapic-generator-java")
+public class LocationName implements ResourceName {
+  private static final PathTemplate PROJECT_LOCATION =
+      PathTemplate.createWithoutUrlEncoding("projects/{project}/locations/{location}");
+  private volatile Map<String, String> fieldValuesMap;
+  private final String project;
+  private final String location;
+
+  @Deprecated
+  protected LocationName() {
+    project = null;
+    location = null;
+  }
+
+  private LocationName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+  }
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static LocationName of(String project, String location) {
+    return newBuilder().setProject(project).setLocation(location).build();
+  }
+
+  public static String format(String project, String location) {
+    return newBuilder().setProject(project).setLocation(location).build().toString();
+  }
+
+  public static LocationName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PROJECT_LOCATION.validatedMatch(
+            formattedString, "LocationName.parse: formattedString not in valid format");
+    return of(matchMap.get("project"), matchMap.get("location"));
+  }
+
+  public static List<LocationName> parseList(List<String> formattedStrings) {
+    List<LocationName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<LocationName> values) {
+    List<String> list = new ArrayList<>(values.size());
+    for (LocationName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT_LOCATION.matches(formattedString);
+  }
+
+  @Override
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PROJECT_LOCATION.instantiate("project", project, "location", location);
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      LocationName that = ((LocationName) o);
+      return Objects.equals(this.project, that.project)
+          && Objects.equals(this.location, that.location);
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    return h;
+  }
+
+  /** Builder for projects/{project}/locations/{location}. */
+  public static class Builder {
+    private String project;
+    private String location;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    private Builder(LocationName locationName) {
+      this.project = locationName.project;
+      this.location = locationName.location;
+    }
+
+    public LocationName build() {
+      return new LocationName(this);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfig.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfig.java
new file mode 100644
index 000000000000..b139d43a7c51
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfig.java
@@ -0,0 +1,871 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Network related configurations.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.NetworkConfig}
+ */
+public final class NetworkConfig extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.NetworkConfig)
+    NetworkConfigOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use NetworkConfig.newBuilder() to construct.
+  private NetworkConfig(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private NetworkConfig() {
+    network_ = "";
+    subnetwork_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new NetworkConfig();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private NetworkConfig(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            network_ = s;
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            subnetwork_ = s;
+            break;
+          }
+          case 24: {
+
+            enableExternalIps_ = input.readBool();
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_NetworkConfig_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_NetworkConfig_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.NetworkConfig.class, com.google.cloud.tpu.v2alpha1.NetworkConfig.Builder.class);
+  }
+
+  public static final int NETWORK_FIELD_NUMBER = 1;
+  private volatile java.lang.Object network_;
+  /**
+   * <pre>
+   * The name of the network for the TPU node. It must be a preexisting Google
+   * Compute Engine network. If none is provided, "default" will be used.
+   * </pre>
+   *
+   * <code>string network = 1;</code>
+   * @return The network.
+   */
+  @java.lang.Override
+  public java.lang.String getNetwork() {
+    java.lang.Object ref = network_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      network_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The name of the network for the TPU node. It must be a preexisting Google
+   * Compute Engine network. If none is provided, "default" will be used.
+   * </pre>
+   *
+   * <code>string network = 1;</code>
+   * @return The bytes for network.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNetworkBytes() {
+    java.lang.Object ref = network_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      network_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int SUBNETWORK_FIELD_NUMBER = 2;
+  private volatile java.lang.Object subnetwork_;
+  /**
+   * <pre>
+   * The name of the subnetwork for the TPU node. It must be a preexisting
+   * Google Compute Engine subnetwork. If none is provided, "default" will be
+   * used.
+   * </pre>
+   *
+   * <code>string subnetwork = 2;</code>
+   * @return The subnetwork.
+   */
+  @java.lang.Override
+  public java.lang.String getSubnetwork() {
+    java.lang.Object ref = subnetwork_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      subnetwork_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The name of the subnetwork for the TPU node. It must be a preexisting
+   * Google Compute Engine subnetwork. If none is provided, "default" will be
+   * used.
+   * </pre>
+   *
+   * <code>string subnetwork = 2;</code>
+   * @return The bytes for subnetwork.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getSubnetworkBytes() {
+    java.lang.Object ref = subnetwork_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      subnetwork_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ENABLE_EXTERNAL_IPS_FIELD_NUMBER = 3;
+  private boolean enableExternalIps_;
+  /**
+   * <pre>
+   * Indicates that external IP addresses would be associated with the TPU
+   * workers. If set to false, the specified subnetwork or network should have
+   * Private Google Access enabled.
+   * </pre>
+   *
+   * <code>bool enable_external_ips = 3;</code>
+   * @return The enableExternalIps.
+   */
+  @java.lang.Override
+  public boolean getEnableExternalIps() {
+    return enableExternalIps_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(network_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, network_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(subnetwork_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, subnetwork_);
+    }
+    if (enableExternalIps_ != false) {
+      output.writeBool(3, enableExternalIps_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(network_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, network_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(subnetwork_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, subnetwork_);
+    }
+    if (enableExternalIps_ != false) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeBoolSize(3, enableExternalIps_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.NetworkConfig)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.NetworkConfig other = (com.google.cloud.tpu.v2alpha1.NetworkConfig) obj;
+
+    if (!getNetwork()
+        .equals(other.getNetwork())) return false;
+    if (!getSubnetwork()
+        .equals(other.getSubnetwork())) return false;
+    if (getEnableExternalIps()
+        != other.getEnableExternalIps()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NETWORK_FIELD_NUMBER;
+    hash = (53 * hash) + getNetwork().hashCode();
+    hash = (37 * hash) + SUBNETWORK_FIELD_NUMBER;
+    hash = (53 * hash) + getSubnetwork().hashCode();
+    hash = (37 * hash) + ENABLE_EXTERNAL_IPS_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
+        getEnableExternalIps());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.NetworkConfig parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkConfig parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkConfig parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkConfig parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkConfig parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkConfig parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkConfig parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkConfig parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkConfig parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkConfig parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkConfig parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkConfig parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.NetworkConfig prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Network related configurations.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.NetworkConfig}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.NetworkConfig)
+      com.google.cloud.tpu.v2alpha1.NetworkConfigOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_NetworkConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_NetworkConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.NetworkConfig.class, com.google.cloud.tpu.v2alpha1.NetworkConfig.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.NetworkConfig.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      network_ = "";
+
+      subnetwork_ = "";
+
+      enableExternalIps_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_NetworkConfig_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.NetworkConfig getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.NetworkConfig.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.NetworkConfig build() {
+      com.google.cloud.tpu.v2alpha1.NetworkConfig result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.NetworkConfig buildPartial() {
+      com.google.cloud.tpu.v2alpha1.NetworkConfig result = new com.google.cloud.tpu.v2alpha1.NetworkConfig(this);
+      result.network_ = network_;
+      result.subnetwork_ = subnetwork_;
+      result.enableExternalIps_ = enableExternalIps_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.NetworkConfig) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.NetworkConfig)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.NetworkConfig other) {
+      if (other == com.google.cloud.tpu.v2alpha1.NetworkConfig.getDefaultInstance()) return this;
+      if (!other.getNetwork().isEmpty()) {
+        network_ = other.network_;
+        onChanged();
+      }
+      if (!other.getSubnetwork().isEmpty()) {
+        subnetwork_ = other.subnetwork_;
+        onChanged();
+      }
+      if (other.getEnableExternalIps() != false) {
+        setEnableExternalIps(other.getEnableExternalIps());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.NetworkConfig parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.NetworkConfig) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object network_ = "";
+    /**
+     * <pre>
+     * The name of the network for the TPU node. It must be a preexisting Google
+     * Compute Engine network. If none is provided, "default" will be used.
+     * </pre>
+     *
+     * <code>string network = 1;</code>
+     * @return The network.
+     */
+    public java.lang.String getNetwork() {
+      java.lang.Object ref = network_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        network_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The name of the network for the TPU node. It must be a preexisting Google
+     * Compute Engine network. If none is provided, "default" will be used.
+     * </pre>
+     *
+     * <code>string network = 1;</code>
+     * @return The bytes for network.
+     */
+    public com.google.protobuf.ByteString
+        getNetworkBytes() {
+      java.lang.Object ref = network_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        network_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The name of the network for the TPU node. It must be a preexisting Google
+     * Compute Engine network. If none is provided, "default" will be used.
+     * </pre>
+     *
+     * <code>string network = 1;</code>
+     * @param value The network to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNetwork(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      network_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The name of the network for the TPU node. It must be a preexisting Google
+     * Compute Engine network. If none is provided, "default" will be used.
+     * </pre>
+     *
+     * <code>string network = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearNetwork() {
+      
+      network_ = getDefaultInstance().getNetwork();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The name of the network for the TPU node. It must be a preexisting Google
+     * Compute Engine network. If none is provided, "default" will be used.
+     * </pre>
+     *
+     * <code>string network = 1;</code>
+     * @param value The bytes for network to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNetworkBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      network_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object subnetwork_ = "";
+    /**
+     * <pre>
+     * The name of the subnetwork for the TPU node. It must be a preexisting
+     * Google Compute Engine subnetwork. If none is provided, "default" will be
+     * used.
+     * </pre>
+     *
+     * <code>string subnetwork = 2;</code>
+     * @return The subnetwork.
+     */
+    public java.lang.String getSubnetwork() {
+      java.lang.Object ref = subnetwork_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        subnetwork_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The name of the subnetwork for the TPU node. It must be a preexisting
+     * Google Compute Engine subnetwork. If none is provided, "default" will be
+     * used.
+     * </pre>
+     *
+     * <code>string subnetwork = 2;</code>
+     * @return The bytes for subnetwork.
+     */
+    public com.google.protobuf.ByteString
+        getSubnetworkBytes() {
+      java.lang.Object ref = subnetwork_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        subnetwork_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The name of the subnetwork for the TPU node. It must be a preexisting
+     * Google Compute Engine subnetwork. If none is provided, "default" will be
+     * used.
+     * </pre>
+     *
+     * <code>string subnetwork = 2;</code>
+     * @param value The subnetwork to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSubnetwork(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      subnetwork_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The name of the subnetwork for the TPU node. It must be a preexisting
+     * Google Compute Engine subnetwork. If none is provided, "default" will be
+     * used.
+     * </pre>
+     *
+     * <code>string subnetwork = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearSubnetwork() {
+      
+      subnetwork_ = getDefaultInstance().getSubnetwork();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The name of the subnetwork for the TPU node. It must be a preexisting
+     * Google Compute Engine subnetwork. If none is provided, "default" will be
+     * used.
+     * </pre>
+     *
+     * <code>string subnetwork = 2;</code>
+     * @param value The bytes for subnetwork to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSubnetworkBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      subnetwork_ = value;
+      onChanged();
+      return this;
+    }
+
+    private boolean enableExternalIps_ ;
+    /**
+     * <pre>
+     * Indicates that external IP addresses would be associated with the TPU
+     * workers. If set to false, the specified subnetwork or network should have
+     * Private Google Access enabled.
+     * </pre>
+     *
+     * <code>bool enable_external_ips = 3;</code>
+     * @return The enableExternalIps.
+     */
+    @java.lang.Override
+    public boolean getEnableExternalIps() {
+      return enableExternalIps_;
+    }
+    /**
+     * <pre>
+     * Indicates that external IP addresses would be associated with the TPU
+     * workers. If set to false, the specified subnetwork or network should have
+     * Private Google Access enabled.
+     * </pre>
+     *
+     * <code>bool enable_external_ips = 3;</code>
+     * @param value The enableExternalIps to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnableExternalIps(boolean value) {
+      
+      enableExternalIps_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Indicates that external IP addresses would be associated with the TPU
+     * workers. If set to false, the specified subnetwork or network should have
+     * Private Google Access enabled.
+     * </pre>
+     *
+     * <code>bool enable_external_ips = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearEnableExternalIps() {
+      
+      enableExternalIps_ = false;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.NetworkConfig)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.NetworkConfig)
+  private static final com.google.cloud.tpu.v2alpha1.NetworkConfig DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.NetworkConfig();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.NetworkConfig getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<NetworkConfig>
+      PARSER = new com.google.protobuf.AbstractParser<NetworkConfig>() {
+    @java.lang.Override
+    public NetworkConfig parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new NetworkConfig(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<NetworkConfig> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<NetworkConfig> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.NetworkConfig getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfigOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfigOrBuilder.java
new file mode 100644
index 000000000000..1cc3bf8f42be
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkConfigOrBuilder.java
@@ -0,0 +1,67 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface NetworkConfigOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.NetworkConfig)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The name of the network for the TPU node. It must be a preexisting Google
+   * Compute Engine network. If none is provided, "default" will be used.
+   * </pre>
+   *
+   * <code>string network = 1;</code>
+   * @return The network.
+   */
+  java.lang.String getNetwork();
+  /**
+   * <pre>
+   * The name of the network for the TPU node. It must be a preexisting Google
+   * Compute Engine network. If none is provided, "default" will be used.
+   * </pre>
+   *
+   * <code>string network = 1;</code>
+   * @return The bytes for network.
+   */
+  com.google.protobuf.ByteString
+      getNetworkBytes();
+
+  /**
+   * <pre>
+   * The name of the subnetwork for the TPU node. It must be a preexisting
+   * Google Compute Engine subnetwork. If none is provided, "default" will be
+   * used.
+   * </pre>
+   *
+   * <code>string subnetwork = 2;</code>
+   * @return The subnetwork.
+   */
+  java.lang.String getSubnetwork();
+  /**
+   * <pre>
+   * The name of the subnetwork for the TPU node. It must be a preexisting
+   * Google Compute Engine subnetwork. If none is provided, "default" will be
+   * used.
+   * </pre>
+   *
+   * <code>string subnetwork = 2;</code>
+   * @return The bytes for subnetwork.
+   */
+  com.google.protobuf.ByteString
+      getSubnetworkBytes();
+
+  /**
+   * <pre>
+   * Indicates that external IP addresses would be associated with the TPU
+   * workers. If set to false, the specified subnetwork or network should have
+   * Private Google Access enabled.
+   * </pre>
+   *
+   * <code>bool enable_external_ips = 3;</code>
+   * @return The enableExternalIps.
+   */
+  boolean getEnableExternalIps();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpoint.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpoint.java
new file mode 100644
index 000000000000..398dd24b7064
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpoint.java
@@ -0,0 +1,911 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * A network endpoint over which a TPU worker can be reached.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.NetworkEndpoint}
+ */
+public final class NetworkEndpoint extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.NetworkEndpoint)
+    NetworkEndpointOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use NetworkEndpoint.newBuilder() to construct.
+  private NetworkEndpoint(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private NetworkEndpoint() {
+    ipAddress_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new NetworkEndpoint();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private NetworkEndpoint(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            ipAddress_ = s;
+            break;
+          }
+          case 16: {
+
+            port_ = input.readInt32();
+            break;
+          }
+          case 42: {
+            com.google.cloud.tpu.v2alpha1.AccessConfig.Builder subBuilder = null;
+            if (accessConfig_ != null) {
+              subBuilder = accessConfig_.toBuilder();
+            }
+            accessConfig_ = input.readMessage(com.google.cloud.tpu.v2alpha1.AccessConfig.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(accessConfig_);
+              accessConfig_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_NetworkEndpoint_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_NetworkEndpoint_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.NetworkEndpoint.class, com.google.cloud.tpu.v2alpha1.NetworkEndpoint.Builder.class);
+  }
+
+  public static final int IP_ADDRESS_FIELD_NUMBER = 1;
+  private volatile java.lang.Object ipAddress_;
+  /**
+   * <pre>
+   * The internal IP address of this network endpoint.
+   * </pre>
+   *
+   * <code>string ip_address = 1;</code>
+   * @return The ipAddress.
+   */
+  @java.lang.Override
+  public java.lang.String getIpAddress() {
+    java.lang.Object ref = ipAddress_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      ipAddress_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The internal IP address of this network endpoint.
+   * </pre>
+   *
+   * <code>string ip_address = 1;</code>
+   * @return The bytes for ipAddress.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getIpAddressBytes() {
+    java.lang.Object ref = ipAddress_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      ipAddress_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int PORT_FIELD_NUMBER = 2;
+  private int port_;
+  /**
+   * <pre>
+   * The port of this network endpoint.
+   * </pre>
+   *
+   * <code>int32 port = 2;</code>
+   * @return The port.
+   */
+  @java.lang.Override
+  public int getPort() {
+    return port_;
+  }
+
+  public static final int ACCESS_CONFIG_FIELD_NUMBER = 5;
+  private com.google.cloud.tpu.v2alpha1.AccessConfig accessConfig_;
+  /**
+   * <pre>
+   * The access config for the TPU worker.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+   * @return Whether the accessConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasAccessConfig() {
+    return accessConfig_ != null;
+  }
+  /**
+   * <pre>
+   * The access config for the TPU worker.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+   * @return The accessConfig.
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.AccessConfig getAccessConfig() {
+    return accessConfig_ == null ? com.google.cloud.tpu.v2alpha1.AccessConfig.getDefaultInstance() : accessConfig_;
+  }
+  /**
+   * <pre>
+   * The access config for the TPU worker.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.AccessConfigOrBuilder getAccessConfigOrBuilder() {
+    return getAccessConfig();
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(ipAddress_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, ipAddress_);
+    }
+    if (port_ != 0) {
+      output.writeInt32(2, port_);
+    }
+    if (accessConfig_ != null) {
+      output.writeMessage(5, getAccessConfig());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(ipAddress_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, ipAddress_);
+    }
+    if (port_ != 0) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeInt32Size(2, port_);
+    }
+    if (accessConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(5, getAccessConfig());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.NetworkEndpoint)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.NetworkEndpoint other = (com.google.cloud.tpu.v2alpha1.NetworkEndpoint) obj;
+
+    if (!getIpAddress()
+        .equals(other.getIpAddress())) return false;
+    if (getPort()
+        != other.getPort()) return false;
+    if (hasAccessConfig() != other.hasAccessConfig()) return false;
+    if (hasAccessConfig()) {
+      if (!getAccessConfig()
+          .equals(other.getAccessConfig())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + IP_ADDRESS_FIELD_NUMBER;
+    hash = (53 * hash) + getIpAddress().hashCode();
+    hash = (37 * hash) + PORT_FIELD_NUMBER;
+    hash = (53 * hash) + getPort();
+    if (hasAccessConfig()) {
+      hash = (37 * hash) + ACCESS_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getAccessConfig().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.NetworkEndpoint parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkEndpoint parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkEndpoint parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkEndpoint parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkEndpoint parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkEndpoint parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkEndpoint parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkEndpoint parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkEndpoint parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkEndpoint parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkEndpoint parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.NetworkEndpoint parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.NetworkEndpoint prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A network endpoint over which a TPU worker can be reached.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.NetworkEndpoint}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.NetworkEndpoint)
+      com.google.cloud.tpu.v2alpha1.NetworkEndpointOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_NetworkEndpoint_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_NetworkEndpoint_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.NetworkEndpoint.class, com.google.cloud.tpu.v2alpha1.NetworkEndpoint.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.NetworkEndpoint.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      ipAddress_ = "";
+
+      port_ = 0;
+
+      if (accessConfigBuilder_ == null) {
+        accessConfig_ = null;
+      } else {
+        accessConfig_ = null;
+        accessConfigBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_NetworkEndpoint_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.NetworkEndpoint getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.NetworkEndpoint.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.NetworkEndpoint build() {
+      com.google.cloud.tpu.v2alpha1.NetworkEndpoint result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.NetworkEndpoint buildPartial() {
+      com.google.cloud.tpu.v2alpha1.NetworkEndpoint result = new com.google.cloud.tpu.v2alpha1.NetworkEndpoint(this);
+      result.ipAddress_ = ipAddress_;
+      result.port_ = port_;
+      if (accessConfigBuilder_ == null) {
+        result.accessConfig_ = accessConfig_;
+      } else {
+        result.accessConfig_ = accessConfigBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.NetworkEndpoint) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.NetworkEndpoint)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.NetworkEndpoint other) {
+      if (other == com.google.cloud.tpu.v2alpha1.NetworkEndpoint.getDefaultInstance()) return this;
+      if (!other.getIpAddress().isEmpty()) {
+        ipAddress_ = other.ipAddress_;
+        onChanged();
+      }
+      if (other.getPort() != 0) {
+        setPort(other.getPort());
+      }
+      if (other.hasAccessConfig()) {
+        mergeAccessConfig(other.getAccessConfig());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.NetworkEndpoint parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.NetworkEndpoint) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object ipAddress_ = "";
+    /**
+     * <pre>
+     * The internal IP address of this network endpoint.
+     * </pre>
+     *
+     * <code>string ip_address = 1;</code>
+     * @return The ipAddress.
+     */
+    public java.lang.String getIpAddress() {
+      java.lang.Object ref = ipAddress_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        ipAddress_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The internal IP address of this network endpoint.
+     * </pre>
+     *
+     * <code>string ip_address = 1;</code>
+     * @return The bytes for ipAddress.
+     */
+    public com.google.protobuf.ByteString
+        getIpAddressBytes() {
+      java.lang.Object ref = ipAddress_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        ipAddress_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The internal IP address of this network endpoint.
+     * </pre>
+     *
+     * <code>string ip_address = 1;</code>
+     * @param value The ipAddress to set.
+     * @return This builder for chaining.
+     */
+    public Builder setIpAddress(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      ipAddress_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The internal IP address of this network endpoint.
+     * </pre>
+     *
+     * <code>string ip_address = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearIpAddress() {
+      
+      ipAddress_ = getDefaultInstance().getIpAddress();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The internal IP address of this network endpoint.
+     * </pre>
+     *
+     * <code>string ip_address = 1;</code>
+     * @param value The bytes for ipAddress to set.
+     * @return This builder for chaining.
+     */
+    public Builder setIpAddressBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      ipAddress_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int port_ ;
+    /**
+     * <pre>
+     * The port of this network endpoint.
+     * </pre>
+     *
+     * <code>int32 port = 2;</code>
+     * @return The port.
+     */
+    @java.lang.Override
+    public int getPort() {
+      return port_;
+    }
+    /**
+     * <pre>
+     * The port of this network endpoint.
+     * </pre>
+     *
+     * <code>int32 port = 2;</code>
+     * @param value The port to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPort(int value) {
+      
+      port_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The port of this network endpoint.
+     * </pre>
+     *
+     * <code>int32 port = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPort() {
+      
+      port_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.tpu.v2alpha1.AccessConfig accessConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.AccessConfig, com.google.cloud.tpu.v2alpha1.AccessConfig.Builder, com.google.cloud.tpu.v2alpha1.AccessConfigOrBuilder> accessConfigBuilder_;
+    /**
+     * <pre>
+     * The access config for the TPU worker.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+     * @return Whether the accessConfig field is set.
+     */
+    public boolean hasAccessConfig() {
+      return accessConfigBuilder_ != null || accessConfig_ != null;
+    }
+    /**
+     * <pre>
+     * The access config for the TPU worker.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+     * @return The accessConfig.
+     */
+    public com.google.cloud.tpu.v2alpha1.AccessConfig getAccessConfig() {
+      if (accessConfigBuilder_ == null) {
+        return accessConfig_ == null ? com.google.cloud.tpu.v2alpha1.AccessConfig.getDefaultInstance() : accessConfig_;
+      } else {
+        return accessConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * The access config for the TPU worker.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+     */
+    public Builder setAccessConfig(com.google.cloud.tpu.v2alpha1.AccessConfig value) {
+      if (accessConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        accessConfig_ = value;
+        onChanged();
+      } else {
+        accessConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The access config for the TPU worker.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+     */
+    public Builder setAccessConfig(
+        com.google.cloud.tpu.v2alpha1.AccessConfig.Builder builderForValue) {
+      if (accessConfigBuilder_ == null) {
+        accessConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        accessConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The access config for the TPU worker.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+     */
+    public Builder mergeAccessConfig(com.google.cloud.tpu.v2alpha1.AccessConfig value) {
+      if (accessConfigBuilder_ == null) {
+        if (accessConfig_ != null) {
+          accessConfig_ =
+            com.google.cloud.tpu.v2alpha1.AccessConfig.newBuilder(accessConfig_).mergeFrom(value).buildPartial();
+        } else {
+          accessConfig_ = value;
+        }
+        onChanged();
+      } else {
+        accessConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The access config for the TPU worker.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+     */
+    public Builder clearAccessConfig() {
+      if (accessConfigBuilder_ == null) {
+        accessConfig_ = null;
+        onChanged();
+      } else {
+        accessConfig_ = null;
+        accessConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The access config for the TPU worker.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.AccessConfig.Builder getAccessConfigBuilder() {
+      
+      onChanged();
+      return getAccessConfigFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * The access config for the TPU worker.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.AccessConfigOrBuilder getAccessConfigOrBuilder() {
+      if (accessConfigBuilder_ != null) {
+        return accessConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return accessConfig_ == null ?
+            com.google.cloud.tpu.v2alpha1.AccessConfig.getDefaultInstance() : accessConfig_;
+      }
+    }
+    /**
+     * <pre>
+     * The access config for the TPU worker.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.AccessConfig, com.google.cloud.tpu.v2alpha1.AccessConfig.Builder, com.google.cloud.tpu.v2alpha1.AccessConfigOrBuilder> 
+        getAccessConfigFieldBuilder() {
+      if (accessConfigBuilder_ == null) {
+        accessConfigBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.AccessConfig, com.google.cloud.tpu.v2alpha1.AccessConfig.Builder, com.google.cloud.tpu.v2alpha1.AccessConfigOrBuilder>(
+                getAccessConfig(),
+                getParentForChildren(),
+                isClean());
+        accessConfig_ = null;
+      }
+      return accessConfigBuilder_;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.NetworkEndpoint)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.NetworkEndpoint)
+  private static final com.google.cloud.tpu.v2alpha1.NetworkEndpoint DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.NetworkEndpoint();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.NetworkEndpoint getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<NetworkEndpoint>
+      PARSER = new com.google.protobuf.AbstractParser<NetworkEndpoint>() {
+    @java.lang.Override
+    public NetworkEndpoint parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new NetworkEndpoint(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<NetworkEndpoint> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<NetworkEndpoint> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.NetworkEndpoint getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpointOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpointOrBuilder.java
new file mode 100644
index 000000000000..aeeb5a816083
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpointOrBuilder.java
@@ -0,0 +1,66 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface NetworkEndpointOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.NetworkEndpoint)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The internal IP address of this network endpoint.
+   * </pre>
+   *
+   * <code>string ip_address = 1;</code>
+   * @return The ipAddress.
+   */
+  java.lang.String getIpAddress();
+  /**
+   * <pre>
+   * The internal IP address of this network endpoint.
+   * </pre>
+   *
+   * <code>string ip_address = 1;</code>
+   * @return The bytes for ipAddress.
+   */
+  com.google.protobuf.ByteString
+      getIpAddressBytes();
+
+  /**
+   * <pre>
+   * The port of this network endpoint.
+   * </pre>
+   *
+   * <code>int32 port = 2;</code>
+   * @return The port.
+   */
+  int getPort();
+
+  /**
+   * <pre>
+   * The access config for the TPU worker.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+   * @return Whether the accessConfig field is set.
+   */
+  boolean hasAccessConfig();
+  /**
+   * <pre>
+   * The access config for the TPU worker.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+   * @return The accessConfig.
+   */
+  com.google.cloud.tpu.v2alpha1.AccessConfig getAccessConfig();
+  /**
+   * <pre>
+   * The access config for the TPU worker.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.AccessConfigOrBuilder getAccessConfigOrBuilder();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Node.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Node.java
new file mode 100644
index 000000000000..b35805806f65
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Node.java
@@ -0,0 +1,6092 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * A TPU instance.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.Node}
+ */
+public final class Node extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.Node)
+    NodeOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use Node.newBuilder() to construct.
+  private Node(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private Node() {
+    name_ = "";
+    description_ = "";
+    acceleratorType_ = "";
+    state_ = 0;
+    healthDescription_ = "";
+    runtimeVersion_ = "";
+    cidrBlock_ = "";
+    networkEndpoints_ = java.util.Collections.emptyList();
+    health_ = 0;
+    tags_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+    dataDisks_ = java.util.Collections.emptyList();
+    apiVersion_ = 0;
+    symptoms_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new Node();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private Node(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            description_ = s;
+            break;
+          }
+          case 42: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            acceleratorType_ = s;
+            break;
+          }
+          case 72: {
+            int rawValue = input.readEnum();
+
+            state_ = rawValue;
+            break;
+          }
+          case 82: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            healthDescription_ = s;
+            break;
+          }
+          case 90: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            runtimeVersion_ = s;
+            break;
+          }
+          case 106: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            cidrBlock_ = s;
+            break;
+          }
+          case 130: {
+            com.google.protobuf.Timestamp.Builder subBuilder = null;
+            if (createTime_ != null) {
+              subBuilder = createTime_.toBuilder();
+            }
+            createTime_ = input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(createTime_);
+              createTime_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          case 138: {
+            com.google.cloud.tpu.v2alpha1.SchedulingConfig.Builder subBuilder = null;
+            if (schedulingConfig_ != null) {
+              subBuilder = schedulingConfig_.toBuilder();
+            }
+            schedulingConfig_ = input.readMessage(com.google.cloud.tpu.v2alpha1.SchedulingConfig.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(schedulingConfig_);
+              schedulingConfig_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          case 170: {
+            if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+              networkEndpoints_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.NetworkEndpoint>();
+              mutable_bitField0_ |= 0x00000001;
+            }
+            networkEndpoints_.add(
+                input.readMessage(com.google.cloud.tpu.v2alpha1.NetworkEndpoint.parser(), extensionRegistry));
+            break;
+          }
+          case 176: {
+            int rawValue = input.readEnum();
+
+            health_ = rawValue;
+            break;
+          }
+          case 194: {
+            if (!((mutable_bitField0_ & 0x00000002) != 0)) {
+              labels_ = com.google.protobuf.MapField.newMapField(
+                  LabelsDefaultEntryHolder.defaultEntry);
+              mutable_bitField0_ |= 0x00000002;
+            }
+            com.google.protobuf.MapEntry<java.lang.String, java.lang.String>
+            labels__ = input.readMessage(
+                LabelsDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
+            labels_.getMutableMap().put(
+                labels__.getKey(), labels__.getValue());
+            break;
+          }
+          case 264: {
+
+            id_ = input.readInt64();
+            break;
+          }
+          case 274: {
+            if (!((mutable_bitField0_ & 0x00000004) != 0)) {
+              metadata_ = com.google.protobuf.MapField.newMapField(
+                  MetadataDefaultEntryHolder.defaultEntry);
+              mutable_bitField0_ |= 0x00000004;
+            }
+            com.google.protobuf.MapEntry<java.lang.String, java.lang.String>
+            metadata__ = input.readMessage(
+                MetadataDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
+            metadata_.getMutableMap().put(
+                metadata__.getKey(), metadata__.getValue());
+            break;
+          }
+          case 290: {
+            com.google.cloud.tpu.v2alpha1.NetworkConfig.Builder subBuilder = null;
+            if (networkConfig_ != null) {
+              subBuilder = networkConfig_.toBuilder();
+            }
+            networkConfig_ = input.readMessage(com.google.cloud.tpu.v2alpha1.NetworkConfig.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(networkConfig_);
+              networkConfig_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          case 298: {
+            com.google.cloud.tpu.v2alpha1.ServiceAccount.Builder subBuilder = null;
+            if (serviceAccount_ != null) {
+              subBuilder = serviceAccount_.toBuilder();
+            }
+            serviceAccount_ = input.readMessage(com.google.cloud.tpu.v2alpha1.ServiceAccount.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(serviceAccount_);
+              serviceAccount_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          case 304: {
+            int rawValue = input.readEnum();
+
+            apiVersion_ = rawValue;
+            break;
+          }
+          case 314: {
+            if (!((mutable_bitField0_ & 0x00000020) != 0)) {
+              symptoms_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.Symptom>();
+              mutable_bitField0_ |= 0x00000020;
+            }
+            symptoms_.add(
+                input.readMessage(com.google.cloud.tpu.v2alpha1.Symptom.parser(), extensionRegistry));
+            break;
+          }
+          case 322: {
+            java.lang.String s = input.readStringRequireUtf8();
+            if (!((mutable_bitField0_ & 0x00000008) != 0)) {
+              tags_ = new com.google.protobuf.LazyStringArrayList();
+              mutable_bitField0_ |= 0x00000008;
+            }
+            tags_.add(s);
+            break;
+          }
+          case 330: {
+            if (!((mutable_bitField0_ & 0x00000010) != 0)) {
+              dataDisks_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.AttachedDisk>();
+              mutable_bitField0_ |= 0x00000010;
+            }
+            dataDisks_.add(
+                input.readMessage(com.google.cloud.tpu.v2alpha1.AttachedDisk.parser(), extensionRegistry));
+            break;
+          }
+          case 362: {
+            com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.Builder subBuilder = null;
+            if (shieldedInstanceConfig_ != null) {
+              subBuilder = shieldedInstanceConfig_.toBuilder();
+            }
+            shieldedInstanceConfig_ = input.readMessage(com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(shieldedInstanceConfig_);
+              shieldedInstanceConfig_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        networkEndpoints_ = java.util.Collections.unmodifiableList(networkEndpoints_);
+      }
+      if (((mutable_bitField0_ & 0x00000020) != 0)) {
+        symptoms_ = java.util.Collections.unmodifiableList(symptoms_);
+      }
+      if (((mutable_bitField0_ & 0x00000008) != 0)) {
+        tags_ = tags_.getUnmodifiableView();
+      }
+      if (((mutable_bitField0_ & 0x00000010) != 0)) {
+        dataDisks_ = java.util.Collections.unmodifiableList(dataDisks_);
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_Node_descriptor;
+  }
+
+  @SuppressWarnings({"rawtypes"})
+  @java.lang.Override
+  protected com.google.protobuf.MapField internalGetMapField(
+      int number) {
+    switch (number) {
+      case 24:
+        return internalGetLabels();
+      case 34:
+        return internalGetMetadata();
+      default:
+        throw new RuntimeException(
+            "Invalid map field number: " + number);
+    }
+  }
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_Node_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.Node.class, com.google.cloud.tpu.v2alpha1.Node.Builder.class);
+  }
+
+  /**
+   * <pre>
+   * Represents the different states of a TPU node during its lifecycle.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.tpu.v2alpha1.Node.State}
+   */
+  public enum State
+      implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     * <pre>
+     * TPU node state is not known/set.
+     * </pre>
+     *
+     * <code>STATE_UNSPECIFIED = 0;</code>
+     */
+    STATE_UNSPECIFIED(0),
+    /**
+     * <pre>
+     * TPU node is being created.
+     * </pre>
+     *
+     * <code>CREATING = 1;</code>
+     */
+    CREATING(1),
+    /**
+     * <pre>
+     * TPU node has been created.
+     * </pre>
+     *
+     * <code>READY = 2;</code>
+     */
+    READY(2),
+    /**
+     * <pre>
+     * TPU node is restarting.
+     * </pre>
+     *
+     * <code>RESTARTING = 3;</code>
+     */
+    RESTARTING(3),
+    /**
+     * <pre>
+     * TPU node is undergoing reimaging.
+     * </pre>
+     *
+     * <code>REIMAGING = 4;</code>
+     */
+    REIMAGING(4),
+    /**
+     * <pre>
+     * TPU node is being deleted.
+     * </pre>
+     *
+     * <code>DELETING = 5;</code>
+     */
+    DELETING(5),
+    /**
+     * <pre>
+     * TPU node is being repaired and may be unusable. Details can be
+     * found in the `help_description` field.
+     * </pre>
+     *
+     * <code>REPAIRING = 6;</code>
+     */
+    REPAIRING(6),
+    /**
+     * <pre>
+     * TPU node is stopped.
+     * </pre>
+     *
+     * <code>STOPPED = 8;</code>
+     */
+    STOPPED(8),
+    /**
+     * <pre>
+     * TPU node is currently stopping.
+     * </pre>
+     *
+     * <code>STOPPING = 9;</code>
+     */
+    STOPPING(9),
+    /**
+     * <pre>
+     * TPU node is currently starting.
+     * </pre>
+     *
+     * <code>STARTING = 10;</code>
+     */
+    STARTING(10),
+    /**
+     * <pre>
+     * TPU node has been preempted. Only applies to Preemptible TPU Nodes.
+     * </pre>
+     *
+     * <code>PREEMPTED = 11;</code>
+     */
+    PREEMPTED(11),
+    /**
+     * <pre>
+     * TPU node has been terminated due to maintenance or has reached the end of
+     * its life cycle (for preemptible nodes).
+     * </pre>
+     *
+     * <code>TERMINATED = 12;</code>
+     */
+    TERMINATED(12),
+    /**
+     * <pre>
+     * TPU node is currently hiding.
+     * </pre>
+     *
+     * <code>HIDING = 13;</code>
+     */
+    HIDING(13),
+    /**
+     * <pre>
+     * TPU node has been hidden.
+     * </pre>
+     *
+     * <code>HIDDEN = 14;</code>
+     */
+    HIDDEN(14),
+    /**
+     * <pre>
+     * TPU node is currently unhiding.
+     * </pre>
+     *
+     * <code>UNHIDING = 15;</code>
+     */
+    UNHIDING(15),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     * <pre>
+     * TPU node state is not known/set.
+     * </pre>
+     *
+     * <code>STATE_UNSPECIFIED = 0;</code>
+     */
+    public static final int STATE_UNSPECIFIED_VALUE = 0;
+    /**
+     * <pre>
+     * TPU node is being created.
+     * </pre>
+     *
+     * <code>CREATING = 1;</code>
+     */
+    public static final int CREATING_VALUE = 1;
+    /**
+     * <pre>
+     * TPU node has been created.
+     * </pre>
+     *
+     * <code>READY = 2;</code>
+     */
+    public static final int READY_VALUE = 2;
+    /**
+     * <pre>
+     * TPU node is restarting.
+     * </pre>
+     *
+     * <code>RESTARTING = 3;</code>
+     */
+    public static final int RESTARTING_VALUE = 3;
+    /**
+     * <pre>
+     * TPU node is undergoing reimaging.
+     * </pre>
+     *
+     * <code>REIMAGING = 4;</code>
+     */
+    public static final int REIMAGING_VALUE = 4;
+    /**
+     * <pre>
+     * TPU node is being deleted.
+     * </pre>
+     *
+     * <code>DELETING = 5;</code>
+     */
+    public static final int DELETING_VALUE = 5;
+    /**
+     * <pre>
+     * TPU node is being repaired and may be unusable. Details can be
+     * found in the `help_description` field.
+     * </pre>
+     *
+     * <code>REPAIRING = 6;</code>
+     */
+    public static final int REPAIRING_VALUE = 6;
+    /**
+     * <pre>
+     * TPU node is stopped.
+     * </pre>
+     *
+     * <code>STOPPED = 8;</code>
+     */
+    public static final int STOPPED_VALUE = 8;
+    /**
+     * <pre>
+     * TPU node is currently stopping.
+     * </pre>
+     *
+     * <code>STOPPING = 9;</code>
+     */
+    public static final int STOPPING_VALUE = 9;
+    /**
+     * <pre>
+     * TPU node is currently starting.
+     * </pre>
+     *
+     * <code>STARTING = 10;</code>
+     */
+    public static final int STARTING_VALUE = 10;
+    /**
+     * <pre>
+     * TPU node has been preempted. Only applies to Preemptible TPU Nodes.
+     * </pre>
+     *
+     * <code>PREEMPTED = 11;</code>
+     */
+    public static final int PREEMPTED_VALUE = 11;
+    /**
+     * <pre>
+     * TPU node has been terminated due to maintenance or has reached the end of
+     * its life cycle (for preemptible nodes).
+     * </pre>
+     *
+     * <code>TERMINATED = 12;</code>
+     */
+    public static final int TERMINATED_VALUE = 12;
+    /**
+     * <pre>
+     * TPU node is currently hiding.
+     * </pre>
+     *
+     * <code>HIDING = 13;</code>
+     */
+    public static final int HIDING_VALUE = 13;
+    /**
+     * <pre>
+     * TPU node has been hidden.
+     * </pre>
+     *
+     * <code>HIDDEN = 14;</code>
+     */
+    public static final int HIDDEN_VALUE = 14;
+    /**
+     * <pre>
+     * TPU node is currently unhiding.
+     * </pre>
+     *
+     * <code>UNHIDING = 15;</code>
+     */
+    public static final int UNHIDING_VALUE = 15;
+
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static State valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static State forNumber(int value) {
+      switch (value) {
+        case 0: return STATE_UNSPECIFIED;
+        case 1: return CREATING;
+        case 2: return READY;
+        case 3: return RESTARTING;
+        case 4: return REIMAGING;
+        case 5: return DELETING;
+        case 6: return REPAIRING;
+        case 8: return STOPPED;
+        case 9: return STOPPING;
+        case 10: return STARTING;
+        case 11: return PREEMPTED;
+        case 12: return TERMINATED;
+        case 13: return HIDING;
+        case 14: return HIDDEN;
+        case 15: return UNHIDING;
+        default: return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<State>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+    private static final com.google.protobuf.Internal.EnumLiteMap<
+        State> internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap<State>() {
+            public State findValueByNumber(int number) {
+              return State.forNumber(number);
+            }
+          };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor
+        getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+    public final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptorForType() {
+      return getDescriptor();
+    }
+    public static final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.Node.getDescriptor().getEnumTypes().get(0);
+    }
+
+    private static final State[] VALUES = values();
+
+    public static State valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private State(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.tpu.v2alpha1.Node.State)
+  }
+
+  /**
+   * <pre>
+   * Health defines the status of a TPU node as reported by
+   * Health Monitor.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.tpu.v2alpha1.Node.Health}
+   */
+  public enum Health
+      implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     * <pre>
+     * Health status is unknown: not initialized or failed to retrieve.
+     * </pre>
+     *
+     * <code>HEALTH_UNSPECIFIED = 0;</code>
+     */
+    HEALTH_UNSPECIFIED(0),
+    /**
+     * <pre>
+     * The resource is healthy.
+     * </pre>
+     *
+     * <code>HEALTHY = 1;</code>
+     */
+    HEALTHY(1),
+    /**
+     * <pre>
+     * The resource is unresponsive.
+     * </pre>
+     *
+     * <code>TIMEOUT = 3;</code>
+     */
+    TIMEOUT(3),
+    /**
+     * <pre>
+     * The in-guest ML stack is unhealthy.
+     * </pre>
+     *
+     * <code>UNHEALTHY_TENSORFLOW = 4;</code>
+     */
+    UNHEALTHY_TENSORFLOW(4),
+    /**
+     * <pre>
+     * The node is under maintenance/priority boost caused rescheduling and
+     * will resume running once rescheduled.
+     * </pre>
+     *
+     * <code>UNHEALTHY_MAINTENANCE = 5;</code>
+     */
+    UNHEALTHY_MAINTENANCE(5),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     * <pre>
+     * Health status is unknown: not initialized or failed to retrieve.
+     * </pre>
+     *
+     * <code>HEALTH_UNSPECIFIED = 0;</code>
+     */
+    public static final int HEALTH_UNSPECIFIED_VALUE = 0;
+    /**
+     * <pre>
+     * The resource is healthy.
+     * </pre>
+     *
+     * <code>HEALTHY = 1;</code>
+     */
+    public static final int HEALTHY_VALUE = 1;
+    /**
+     * <pre>
+     * The resource is unresponsive.
+     * </pre>
+     *
+     * <code>TIMEOUT = 3;</code>
+     */
+    public static final int TIMEOUT_VALUE = 3;
+    /**
+     * <pre>
+     * The in-guest ML stack is unhealthy.
+     * </pre>
+     *
+     * <code>UNHEALTHY_TENSORFLOW = 4;</code>
+     */
+    public static final int UNHEALTHY_TENSORFLOW_VALUE = 4;
+    /**
+     * <pre>
+     * The node is under maintenance/priority boost caused rescheduling and
+     * will resume running once rescheduled.
+     * </pre>
+     *
+     * <code>UNHEALTHY_MAINTENANCE = 5;</code>
+     */
+    public static final int UNHEALTHY_MAINTENANCE_VALUE = 5;
+
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static Health valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static Health forNumber(int value) {
+      switch (value) {
+        case 0: return HEALTH_UNSPECIFIED;
+        case 1: return HEALTHY;
+        case 3: return TIMEOUT;
+        case 4: return UNHEALTHY_TENSORFLOW;
+        case 5: return UNHEALTHY_MAINTENANCE;
+        default: return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<Health>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+    private static final com.google.protobuf.Internal.EnumLiteMap<
+        Health> internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap<Health>() {
+            public Health findValueByNumber(int number) {
+              return Health.forNumber(number);
+            }
+          };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor
+        getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+    public final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptorForType() {
+      return getDescriptor();
+    }
+    public static final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.Node.getDescriptor().getEnumTypes().get(1);
+    }
+
+    private static final Health[] VALUES = values();
+
+    public static Health valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private Health(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.tpu.v2alpha1.Node.Health)
+  }
+
+  /**
+   * <pre>
+   * TPU API Version.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.tpu.v2alpha1.Node.ApiVersion}
+   */
+  public enum ApiVersion
+      implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     * <pre>
+     * API version is unknown.
+     * </pre>
+     *
+     * <code>API_VERSION_UNSPECIFIED = 0;</code>
+     */
+    API_VERSION_UNSPECIFIED(0),
+    /**
+     * <pre>
+     * TPU API V1Alpha1 version.
+     * </pre>
+     *
+     * <code>V1_ALPHA1 = 1;</code>
+     */
+    V1_ALPHA1(1),
+    /**
+     * <pre>
+     * TPU API V1 version.
+     * </pre>
+     *
+     * <code>V1 = 2;</code>
+     */
+    V1(2),
+    /**
+     * <pre>
+     * TPU API V2Alpha1 version.
+     * </pre>
+     *
+     * <code>V2_ALPHA1 = 3;</code>
+     */
+    V2_ALPHA1(3),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     * <pre>
+     * API version is unknown.
+     * </pre>
+     *
+     * <code>API_VERSION_UNSPECIFIED = 0;</code>
+     */
+    public static final int API_VERSION_UNSPECIFIED_VALUE = 0;
+    /**
+     * <pre>
+     * TPU API V1Alpha1 version.
+     * </pre>
+     *
+     * <code>V1_ALPHA1 = 1;</code>
+     */
+    public static final int V1_ALPHA1_VALUE = 1;
+    /**
+     * <pre>
+     * TPU API V1 version.
+     * </pre>
+     *
+     * <code>V1 = 2;</code>
+     */
+    public static final int V1_VALUE = 2;
+    /**
+     * <pre>
+     * TPU API V2Alpha1 version.
+     * </pre>
+     *
+     * <code>V2_ALPHA1 = 3;</code>
+     */
+    public static final int V2_ALPHA1_VALUE = 3;
+
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static ApiVersion valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static ApiVersion forNumber(int value) {
+      switch (value) {
+        case 0: return API_VERSION_UNSPECIFIED;
+        case 1: return V1_ALPHA1;
+        case 2: return V1;
+        case 3: return V2_ALPHA1;
+        default: return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<ApiVersion>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+    private static final com.google.protobuf.Internal.EnumLiteMap<
+        ApiVersion> internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap<ApiVersion>() {
+            public ApiVersion findValueByNumber(int number) {
+              return ApiVersion.forNumber(number);
+            }
+          };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor
+        getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+    public final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptorForType() {
+      return getDescriptor();
+    }
+    public static final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.Node.getDescriptor().getEnumTypes().get(2);
+    }
+
+    private static final ApiVersion[] VALUES = values();
+
+    public static ApiVersion valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private ApiVersion(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.tpu.v2alpha1.Node.ApiVersion)
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <pre>
+   * Output only. Immutable. The name of the TPU.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE];</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Output only. Immutable. The name of the TPU.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE];</code>
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DESCRIPTION_FIELD_NUMBER = 3;
+  private volatile java.lang.Object description_;
+  /**
+   * <pre>
+   * The user-supplied description of the TPU. Maximum of 512 characters.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   * @return The description.
+   */
+  @java.lang.Override
+  public java.lang.String getDescription() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      description_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The user-supplied description of the TPU. Maximum of 512 characters.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   * @return The bytes for description.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getDescriptionBytes() {
+    java.lang.Object ref = description_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      description_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int ACCELERATOR_TYPE_FIELD_NUMBER = 5;
+  private volatile java.lang.Object acceleratorType_;
+  /**
+   * <pre>
+   * Required. The type of hardware accelerators associated with this node.
+   * </pre>
+   *
+   * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The acceleratorType.
+   */
+  @java.lang.Override
+  public java.lang.String getAcceleratorType() {
+    java.lang.Object ref = acceleratorType_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      acceleratorType_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The type of hardware accelerators associated with this node.
+   * </pre>
+   *
+   * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The bytes for acceleratorType.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getAcceleratorTypeBytes() {
+    java.lang.Object ref = acceleratorType_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      acceleratorType_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int STATE_FIELD_NUMBER = 9;
+  private int state_;
+  /**
+   * <pre>
+   * Output only. The current state for the TPU Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The enum numeric value on the wire for state.
+   */
+  @java.lang.Override public int getStateValue() {
+    return state_;
+  }
+  /**
+   * <pre>
+   * Output only. The current state for the TPU Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The state.
+   */
+  @java.lang.Override public com.google.cloud.tpu.v2alpha1.Node.State getState() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.tpu.v2alpha1.Node.State result = com.google.cloud.tpu.v2alpha1.Node.State.valueOf(state_);
+    return result == null ? com.google.cloud.tpu.v2alpha1.Node.State.UNRECOGNIZED : result;
+  }
+
+  public static final int HEALTH_DESCRIPTION_FIELD_NUMBER = 10;
+  private volatile java.lang.Object healthDescription_;
+  /**
+   * <pre>
+   * Output only. If this field is populated, it contains a description of why
+   * the TPU Node is unhealthy.
+   * </pre>
+   *
+   * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The healthDescription.
+   */
+  @java.lang.Override
+  public java.lang.String getHealthDescription() {
+    java.lang.Object ref = healthDescription_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      healthDescription_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Output only. If this field is populated, it contains a description of why
+   * the TPU Node is unhealthy.
+   * </pre>
+   *
+   * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The bytes for healthDescription.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getHealthDescriptionBytes() {
+    java.lang.Object ref = healthDescription_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      healthDescription_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int RUNTIME_VERSION_FIELD_NUMBER = 11;
+  private volatile java.lang.Object runtimeVersion_;
+  /**
+   * <pre>
+   * Required. The runtime version running in the Node.
+   * </pre>
+   *
+   * <code>string runtime_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The runtimeVersion.
+   */
+  @java.lang.Override
+  public java.lang.String getRuntimeVersion() {
+    java.lang.Object ref = runtimeVersion_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      runtimeVersion_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Required. The runtime version running in the Node.
+   * </pre>
+   *
+   * <code>string runtime_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The bytes for runtimeVersion.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getRuntimeVersionBytes() {
+    java.lang.Object ref = runtimeVersion_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      runtimeVersion_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int NETWORK_CONFIG_FIELD_NUMBER = 36;
+  private com.google.cloud.tpu.v2alpha1.NetworkConfig networkConfig_;
+  /**
+   * <pre>
+   * Network configurations for the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+   * @return Whether the networkConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasNetworkConfig() {
+    return networkConfig_ != null;
+  }
+  /**
+   * <pre>
+   * Network configurations for the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+   * @return The networkConfig.
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.NetworkConfig getNetworkConfig() {
+    return networkConfig_ == null ? com.google.cloud.tpu.v2alpha1.NetworkConfig.getDefaultInstance() : networkConfig_;
+  }
+  /**
+   * <pre>
+   * Network configurations for the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.NetworkConfigOrBuilder getNetworkConfigOrBuilder() {
+    return getNetworkConfig();
+  }
+
+  public static final int CIDR_BLOCK_FIELD_NUMBER = 13;
+  private volatile java.lang.Object cidrBlock_;
+  /**
+   * <pre>
+   * The CIDR block that the TPU node will use when selecting an IP address.
+   * This CIDR block must be a /29 block; the Compute Engine networks API
+   * forbids a smaller block, and using a larger block would be wasteful (a
+   * node can only consume one IP address). Errors will occur if the CIDR block
+   * has already been used for a currently existing TPU node, the CIDR block
+   * conflicts with any subnetworks in the user's provided network, or the
+   * provided network is peered with another network that is using that CIDR
+   * block.
+   * </pre>
+   *
+   * <code>string cidr_block = 13;</code>
+   * @return The cidrBlock.
+   */
+  @java.lang.Override
+  public java.lang.String getCidrBlock() {
+    java.lang.Object ref = cidrBlock_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      cidrBlock_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The CIDR block that the TPU node will use when selecting an IP address.
+   * This CIDR block must be a /29 block; the Compute Engine networks API
+   * forbids a smaller block, and using a larger block would be wasteful (a
+   * node can only consume one IP address). Errors will occur if the CIDR block
+   * has already been used for a currently existing TPU node, the CIDR block
+   * conflicts with any subnetworks in the user's provided network, or the
+   * provided network is peered with another network that is using that CIDR
+   * block.
+   * </pre>
+   *
+   * <code>string cidr_block = 13;</code>
+   * @return The bytes for cidrBlock.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getCidrBlockBytes() {
+    java.lang.Object ref = cidrBlock_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      cidrBlock_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int SERVICE_ACCOUNT_FIELD_NUMBER = 37;
+  private com.google.cloud.tpu.v2alpha1.ServiceAccount serviceAccount_;
+  /**
+   * <pre>
+   * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+   * If None is specified, the default compute service account will be used.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+   * @return Whether the serviceAccount field is set.
+   */
+  @java.lang.Override
+  public boolean hasServiceAccount() {
+    return serviceAccount_ != null;
+  }
+  /**
+   * <pre>
+   * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+   * If None is specified, the default compute service account will be used.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+   * @return The serviceAccount.
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ServiceAccount getServiceAccount() {
+    return serviceAccount_ == null ? com.google.cloud.tpu.v2alpha1.ServiceAccount.getDefaultInstance() : serviceAccount_;
+  }
+  /**
+   * <pre>
+   * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+   * If None is specified, the default compute service account will be used.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ServiceAccountOrBuilder getServiceAccountOrBuilder() {
+    return getServiceAccount();
+  }
+
+  public static final int CREATE_TIME_FIELD_NUMBER = 16;
+  private com.google.protobuf.Timestamp createTime_;
+  /**
+   * <pre>
+   * Output only. The time when the node was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return Whether the createTime field is set.
+   */
+  @java.lang.Override
+  public boolean hasCreateTime() {
+    return createTime_ != null;
+  }
+  /**
+   * <pre>
+   * Output only. The time when the node was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The createTime.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getCreateTime() {
+    return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+  }
+  /**
+   * <pre>
+   * Output only. The time when the node was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+    return getCreateTime();
+  }
+
+  public static final int SCHEDULING_CONFIG_FIELD_NUMBER = 17;
+  private com.google.cloud.tpu.v2alpha1.SchedulingConfig schedulingConfig_;
+  /**
+   * <pre>
+   * The scheduling options for this node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+   * @return Whether the schedulingConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasSchedulingConfig() {
+    return schedulingConfig_ != null;
+  }
+  /**
+   * <pre>
+   * The scheduling options for this node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+   * @return The schedulingConfig.
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.SchedulingConfig getSchedulingConfig() {
+    return schedulingConfig_ == null ? com.google.cloud.tpu.v2alpha1.SchedulingConfig.getDefaultInstance() : schedulingConfig_;
+  }
+  /**
+   * <pre>
+   * The scheduling options for this node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.SchedulingConfigOrBuilder getSchedulingConfigOrBuilder() {
+    return getSchedulingConfig();
+  }
+
+  public static final int NETWORK_ENDPOINTS_FIELD_NUMBER = 21;
+  private java.util.List<com.google.cloud.tpu.v2alpha1.NetworkEndpoint> networkEndpoints_;
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that runtime clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.tpu.v2alpha1.NetworkEndpoint> getNetworkEndpointsList() {
+    return networkEndpoints_;
+  }
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that runtime clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.tpu.v2alpha1.NetworkEndpointOrBuilder> 
+      getNetworkEndpointsOrBuilderList() {
+    return networkEndpoints_;
+  }
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that runtime clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public int getNetworkEndpointsCount() {
+    return networkEndpoints_.size();
+  }
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that runtime clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.NetworkEndpoint getNetworkEndpoints(int index) {
+    return networkEndpoints_.get(index);
+  }
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that runtime clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.NetworkEndpointOrBuilder getNetworkEndpointsOrBuilder(
+      int index) {
+    return networkEndpoints_.get(index);
+  }
+
+  public static final int HEALTH_FIELD_NUMBER = 22;
+  private int health_;
+  /**
+   * <pre>
+   * The health status of the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node.Health health = 22;</code>
+   * @return The enum numeric value on the wire for health.
+   */
+  @java.lang.Override public int getHealthValue() {
+    return health_;
+  }
+  /**
+   * <pre>
+   * The health status of the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node.Health health = 22;</code>
+   * @return The health.
+   */
+  @java.lang.Override public com.google.cloud.tpu.v2alpha1.Node.Health getHealth() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.tpu.v2alpha1.Node.Health result = com.google.cloud.tpu.v2alpha1.Node.Health.valueOf(health_);
+    return result == null ? com.google.cloud.tpu.v2alpha1.Node.Health.UNRECOGNIZED : result;
+  }
+
+  public static final int LABELS_FIELD_NUMBER = 24;
+  private static final class LabelsDefaultEntryHolder {
+    static final com.google.protobuf.MapEntry<
+        java.lang.String, java.lang.String> defaultEntry =
+            com.google.protobuf.MapEntry
+            .<java.lang.String, java.lang.String>newDefaultInstance(
+                com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_Node_LabelsEntry_descriptor, 
+                com.google.protobuf.WireFormat.FieldType.STRING,
+                "",
+                com.google.protobuf.WireFormat.FieldType.STRING,
+                "");
+  }
+  private com.google.protobuf.MapField<
+      java.lang.String, java.lang.String> labels_;
+  private com.google.protobuf.MapField<java.lang.String, java.lang.String>
+  internalGetLabels() {
+    if (labels_ == null) {
+      return com.google.protobuf.MapField.emptyMapField(
+          LabelsDefaultEntryHolder.defaultEntry);
+    }
+    return labels_;
+  }
+
+  public int getLabelsCount() {
+    return internalGetLabels().getMap().size();
+  }
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+
+  @java.lang.Override
+  public boolean containsLabels(
+      java.lang.String key) {
+    if (key == null) { throw new NullPointerException("map key"); }
+    return internalGetLabels().getMap().containsKey(key);
+  }
+  /**
+   * Use {@link #getLabelsMap()} instead.
+   */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public java.util.Map<java.lang.String, java.lang.String> getLabels() {
+    return getLabelsMap();
+  }
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+  @java.lang.Override
+
+  public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
+    return internalGetLabels().getMap();
+  }
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+  @java.lang.Override
+
+  public java.lang.String getLabelsOrDefault(
+      java.lang.String key,
+      java.lang.String defaultValue) {
+    if (key == null) { throw new NullPointerException("map key"); }
+    java.util.Map<java.lang.String, java.lang.String> map =
+        internalGetLabels().getMap();
+    return map.containsKey(key) ? map.get(key) : defaultValue;
+  }
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+  @java.lang.Override
+
+  public java.lang.String getLabelsOrThrow(
+      java.lang.String key) {
+    if (key == null) { throw new NullPointerException("map key"); }
+    java.util.Map<java.lang.String, java.lang.String> map =
+        internalGetLabels().getMap();
+    if (!map.containsKey(key)) {
+      throw new java.lang.IllegalArgumentException();
+    }
+    return map.get(key);
+  }
+
+  public static final int METADATA_FIELD_NUMBER = 34;
+  private static final class MetadataDefaultEntryHolder {
+    static final com.google.protobuf.MapEntry<
+        java.lang.String, java.lang.String> defaultEntry =
+            com.google.protobuf.MapEntry
+            .<java.lang.String, java.lang.String>newDefaultInstance(
+                com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_Node_MetadataEntry_descriptor, 
+                com.google.protobuf.WireFormat.FieldType.STRING,
+                "",
+                com.google.protobuf.WireFormat.FieldType.STRING,
+                "");
+  }
+  private com.google.protobuf.MapField<
+      java.lang.String, java.lang.String> metadata_;
+  private com.google.protobuf.MapField<java.lang.String, java.lang.String>
+  internalGetMetadata() {
+    if (metadata_ == null) {
+      return com.google.protobuf.MapField.emptyMapField(
+          MetadataDefaultEntryHolder.defaultEntry);
+    }
+    return metadata_;
+  }
+
+  public int getMetadataCount() {
+    return internalGetMetadata().getMap().size();
+  }
+  /**
+   * <pre>
+   * Custom metadata to apply to the TPU Node.
+   * Can set startup-script and shutdown-script
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; metadata = 34;</code>
+   */
+
+  @java.lang.Override
+  public boolean containsMetadata(
+      java.lang.String key) {
+    if (key == null) { throw new NullPointerException("map key"); }
+    return internalGetMetadata().getMap().containsKey(key);
+  }
+  /**
+   * Use {@link #getMetadataMap()} instead.
+   */
+  @java.lang.Override
+  @java.lang.Deprecated
+  public java.util.Map<java.lang.String, java.lang.String> getMetadata() {
+    return getMetadataMap();
+  }
+  /**
+   * <pre>
+   * Custom metadata to apply to the TPU Node.
+   * Can set startup-script and shutdown-script
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; metadata = 34;</code>
+   */
+  @java.lang.Override
+
+  public java.util.Map<java.lang.String, java.lang.String> getMetadataMap() {
+    return internalGetMetadata().getMap();
+  }
+  /**
+   * <pre>
+   * Custom metadata to apply to the TPU Node.
+   * Can set startup-script and shutdown-script
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; metadata = 34;</code>
+   */
+  @java.lang.Override
+
+  public java.lang.String getMetadataOrDefault(
+      java.lang.String key,
+      java.lang.String defaultValue) {
+    if (key == null) { throw new NullPointerException("map key"); }
+    java.util.Map<java.lang.String, java.lang.String> map =
+        internalGetMetadata().getMap();
+    return map.containsKey(key) ? map.get(key) : defaultValue;
+  }
+  /**
+   * <pre>
+   * Custom metadata to apply to the TPU Node.
+   * Can set startup-script and shutdown-script
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; metadata = 34;</code>
+   */
+  @java.lang.Override
+
+  public java.lang.String getMetadataOrThrow(
+      java.lang.String key) {
+    if (key == null) { throw new NullPointerException("map key"); }
+    java.util.Map<java.lang.String, java.lang.String> map =
+        internalGetMetadata().getMap();
+    if (!map.containsKey(key)) {
+      throw new java.lang.IllegalArgumentException();
+    }
+    return map.get(key);
+  }
+
+  public static final int TAGS_FIELD_NUMBER = 40;
+  private com.google.protobuf.LazyStringList tags_;
+  /**
+   * <pre>
+   * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+   * targets for network firewalls.
+   * </pre>
+   *
+   * <code>repeated string tags = 40;</code>
+   * @return A list containing the tags.
+   */
+  public com.google.protobuf.ProtocolStringList
+      getTagsList() {
+    return tags_;
+  }
+  /**
+   * <pre>
+   * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+   * targets for network firewalls.
+   * </pre>
+   *
+   * <code>repeated string tags = 40;</code>
+   * @return The count of tags.
+   */
+  public int getTagsCount() {
+    return tags_.size();
+  }
+  /**
+   * <pre>
+   * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+   * targets for network firewalls.
+   * </pre>
+   *
+   * <code>repeated string tags = 40;</code>
+   * @param index The index of the element to return.
+   * @return The tags at the given index.
+   */
+  public java.lang.String getTags(int index) {
+    return tags_.get(index);
+  }
+  /**
+   * <pre>
+   * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+   * targets for network firewalls.
+   * </pre>
+   *
+   * <code>repeated string tags = 40;</code>
+   * @param index The index of the value to return.
+   * @return The bytes of the tags at the given index.
+   */
+  public com.google.protobuf.ByteString
+      getTagsBytes(int index) {
+    return tags_.getByteString(index);
+  }
+
+  public static final int ID_FIELD_NUMBER = 33;
+  private long id_;
+  /**
+   * <pre>
+   * Output only. The unique identifier for the TPU Node.
+   * </pre>
+   *
+   * <code>int64 id = 33 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The id.
+   */
+  @java.lang.Override
+  public long getId() {
+    return id_;
+  }
+
+  public static final int DATA_DISKS_FIELD_NUMBER = 41;
+  private java.util.List<com.google.cloud.tpu.v2alpha1.AttachedDisk> dataDisks_;
+  /**
+   * <pre>
+   * The additional data disks for the Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.tpu.v2alpha1.AttachedDisk> getDataDisksList() {
+    return dataDisks_;
+  }
+  /**
+   * <pre>
+   * The additional data disks for the Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.tpu.v2alpha1.AttachedDiskOrBuilder> 
+      getDataDisksOrBuilderList() {
+    return dataDisks_;
+  }
+  /**
+   * <pre>
+   * The additional data disks for the Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+   */
+  @java.lang.Override
+  public int getDataDisksCount() {
+    return dataDisks_.size();
+  }
+  /**
+   * <pre>
+   * The additional data disks for the Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.AttachedDisk getDataDisks(int index) {
+    return dataDisks_.get(index);
+  }
+  /**
+   * <pre>
+   * The additional data disks for the Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.AttachedDiskOrBuilder getDataDisksOrBuilder(
+      int index) {
+    return dataDisks_.get(index);
+  }
+
+  public static final int API_VERSION_FIELD_NUMBER = 38;
+  private int apiVersion_;
+  /**
+   * <pre>
+   * Output only. The API version that created this Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The enum numeric value on the wire for apiVersion.
+   */
+  @java.lang.Override public int getApiVersionValue() {
+    return apiVersion_;
+  }
+  /**
+   * <pre>
+   * Output only. The API version that created this Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The apiVersion.
+   */
+  @java.lang.Override public com.google.cloud.tpu.v2alpha1.Node.ApiVersion getApiVersion() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.tpu.v2alpha1.Node.ApiVersion result = com.google.cloud.tpu.v2alpha1.Node.ApiVersion.valueOf(apiVersion_);
+    return result == null ? com.google.cloud.tpu.v2alpha1.Node.ApiVersion.UNRECOGNIZED : result;
+  }
+
+  public static final int SYMPTOMS_FIELD_NUMBER = 39;
+  private java.util.List<com.google.cloud.tpu.v2alpha1.Symptom> symptoms_;
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public java.util.List<com.google.cloud.tpu.v2alpha1.Symptom> getSymptomsList() {
+    return symptoms_;
+  }
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public java.util.List<? extends com.google.cloud.tpu.v2alpha1.SymptomOrBuilder> 
+      getSymptomsOrBuilderList() {
+    return symptoms_;
+  }
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public int getSymptomsCount() {
+    return symptoms_.size();
+  }
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.Symptom getSymptoms(int index) {
+    return symptoms_.get(index);
+  }
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.SymptomOrBuilder getSymptomsOrBuilder(
+      int index) {
+    return symptoms_.get(index);
+  }
+
+  public static final int SHIELDED_INSTANCE_CONFIG_FIELD_NUMBER = 45;
+  private com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shieldedInstanceConfig_;
+  /**
+   * <pre>
+   * Shielded Instance options.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+   * @return Whether the shieldedInstanceConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasShieldedInstanceConfig() {
+    return shieldedInstanceConfig_ != null;
+  }
+  /**
+   * <pre>
+   * Shielded Instance options.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+   * @return The shieldedInstanceConfig.
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig getShieldedInstanceConfig() {
+    return shieldedInstanceConfig_ == null ? com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.getDefaultInstance() : shieldedInstanceConfig_;
+  }
+  /**
+   * <pre>
+   * Shielded Instance options.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfigOrBuilder getShieldedInstanceConfigOrBuilder() {
+    return getShieldedInstanceConfig();
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, description_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(acceleratorType_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 5, acceleratorType_);
+    }
+    if (state_ != com.google.cloud.tpu.v2alpha1.Node.State.STATE_UNSPECIFIED.getNumber()) {
+      output.writeEnum(9, state_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(healthDescription_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 10, healthDescription_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(runtimeVersion_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 11, runtimeVersion_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cidrBlock_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 13, cidrBlock_);
+    }
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
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+  public Builder newBuilderForType() { return newBuilder(); }
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+  public Builder toBuilder() {
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+  protected Builder newBuilderForType(
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+  /**
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+    public static final com.google.protobuf.Descriptors.Descriptor
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+
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+      }
+      result.apiVersion_ = apiVersion_;
+      if (symptomsBuilder_ == null) {
+        if (((bitField0_ & 0x00000020) != 0)) {
+          symptoms_ = java.util.Collections.unmodifiableList(symptoms_);
+          bitField0_ = (bitField0_ & ~0x00000020);
+        }
+        result.symptoms_ = symptoms_;
+      } else {
+        result.symptoms_ = symptomsBuilder_.build();
+      }
+      if (shieldedInstanceConfigBuilder_ == null) {
+        result.shieldedInstanceConfig_ = shieldedInstanceConfig_;
+      } else {
+        result.shieldedInstanceConfig_ = shieldedInstanceConfigBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.Node) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.Node)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.Node other) {
+      if (other == com.google.cloud.tpu.v2alpha1.Node.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getDescription().isEmpty()) {
+        description_ = other.description_;
+        onChanged();
+      }
+      if (!other.getAcceleratorType().isEmpty()) {
+        acceleratorType_ = other.acceleratorType_;
+        onChanged();
+      }
+      if (other.state_ != 0) {
+        setStateValue(other.getStateValue());
+      }
+      if (!other.getHealthDescription().isEmpty()) {
+        healthDescription_ = other.healthDescription_;
+        onChanged();
+      }
+      if (!other.getRuntimeVersion().isEmpty()) {
+        runtimeVersion_ = other.runtimeVersion_;
+        onChanged();
+      }
+      if (other.hasNetworkConfig()) {
+        mergeNetworkConfig(other.getNetworkConfig());
+      }
+      if (!other.getCidrBlock().isEmpty()) {
+        cidrBlock_ = other.cidrBlock_;
+        onChanged();
+      }
+      if (other.hasServiceAccount()) {
+        mergeServiceAccount(other.getServiceAccount());
+      }
+      if (other.hasCreateTime()) {
+        mergeCreateTime(other.getCreateTime());
+      }
+      if (other.hasSchedulingConfig()) {
+        mergeSchedulingConfig(other.getSchedulingConfig());
+      }
+      if (networkEndpointsBuilder_ == null) {
+        if (!other.networkEndpoints_.isEmpty()) {
+          if (networkEndpoints_.isEmpty()) {
+            networkEndpoints_ = other.networkEndpoints_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+          } else {
+            ensureNetworkEndpointsIsMutable();
+            networkEndpoints_.addAll(other.networkEndpoints_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.networkEndpoints_.isEmpty()) {
+          if (networkEndpointsBuilder_.isEmpty()) {
+            networkEndpointsBuilder_.dispose();
+            networkEndpointsBuilder_ = null;
+            networkEndpoints_ = other.networkEndpoints_;
+            bitField0_ = (bitField0_ & ~0x00000001);
+            networkEndpointsBuilder_ = 
+              com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
+                 getNetworkEndpointsFieldBuilder() : null;
+          } else {
+            networkEndpointsBuilder_.addAllMessages(other.networkEndpoints_);
+          }
+        }
+      }
+      if (other.health_ != 0) {
+        setHealthValue(other.getHealthValue());
+      }
+      internalGetMutableLabels().mergeFrom(
+          other.internalGetLabels());
+      internalGetMutableMetadata().mergeFrom(
+          other.internalGetMetadata());
+      if (!other.tags_.isEmpty()) {
+        if (tags_.isEmpty()) {
+          tags_ = other.tags_;
+          bitField0_ = (bitField0_ & ~0x00000008);
+        } else {
+          ensureTagsIsMutable();
+          tags_.addAll(other.tags_);
+        }
+        onChanged();
+      }
+      if (other.getId() != 0L) {
+        setId(other.getId());
+      }
+      if (dataDisksBuilder_ == null) {
+        if (!other.dataDisks_.isEmpty()) {
+          if (dataDisks_.isEmpty()) {
+            dataDisks_ = other.dataDisks_;
+            bitField0_ = (bitField0_ & ~0x00000010);
+          } else {
+            ensureDataDisksIsMutable();
+            dataDisks_.addAll(other.dataDisks_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.dataDisks_.isEmpty()) {
+          if (dataDisksBuilder_.isEmpty()) {
+            dataDisksBuilder_.dispose();
+            dataDisksBuilder_ = null;
+            dataDisks_ = other.dataDisks_;
+            bitField0_ = (bitField0_ & ~0x00000010);
+            dataDisksBuilder_ = 
+              com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
+                 getDataDisksFieldBuilder() : null;
+          } else {
+            dataDisksBuilder_.addAllMessages(other.dataDisks_);
+          }
+        }
+      }
+      if (other.apiVersion_ != 0) {
+        setApiVersionValue(other.getApiVersionValue());
+      }
+      if (symptomsBuilder_ == null) {
+        if (!other.symptoms_.isEmpty()) {
+          if (symptoms_.isEmpty()) {
+            symptoms_ = other.symptoms_;
+            bitField0_ = (bitField0_ & ~0x00000020);
+          } else {
+            ensureSymptomsIsMutable();
+            symptoms_.addAll(other.symptoms_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.symptoms_.isEmpty()) {
+          if (symptomsBuilder_.isEmpty()) {
+            symptomsBuilder_.dispose();
+            symptomsBuilder_ = null;
+            symptoms_ = other.symptoms_;
+            bitField0_ = (bitField0_ & ~0x00000020);
+            symptomsBuilder_ = 
+              com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
+                 getSymptomsFieldBuilder() : null;
+          } else {
+            symptomsBuilder_.addAllMessages(other.symptoms_);
+          }
+        }
+      }
+      if (other.hasShieldedInstanceConfig()) {
+        mergeShieldedInstanceConfig(other.getShieldedInstanceConfig());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.Node parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.Node) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+    private int bitField0_;
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * Output only. Immutable. The name of the TPU.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE];</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. Immutable. The name of the TPU.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE];</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. Immutable. The name of the TPU.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE];</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. Immutable. The name of the TPU.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. Immutable. The name of the TPU.
+     * </pre>
+     *
+     * <code>string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE];</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object description_ = "";
+    /**
+     * <pre>
+     * The user-supplied description of the TPU. Maximum of 512 characters.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     * @return The description.
+     */
+    public java.lang.String getDescription() {
+      java.lang.Object ref = description_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        description_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The user-supplied description of the TPU. Maximum of 512 characters.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     * @return The bytes for description.
+     */
+    public com.google.protobuf.ByteString
+        getDescriptionBytes() {
+      java.lang.Object ref = description_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        description_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The user-supplied description of the TPU. Maximum of 512 characters.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     * @param value The description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescription(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      description_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The user-supplied description of the TPU. Maximum of 512 characters.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearDescription() {
+      
+      description_ = getDefaultInstance().getDescription();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The user-supplied description of the TPU. Maximum of 512 characters.
+     * </pre>
+     *
+     * <code>string description = 3;</code>
+     * @param value The bytes for description to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDescriptionBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      description_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object acceleratorType_ = "";
+    /**
+     * <pre>
+     * Required. The type of hardware accelerators associated with this node.
+     * </pre>
+     *
+     * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return The acceleratorType.
+     */
+    public java.lang.String getAcceleratorType() {
+      java.lang.Object ref = acceleratorType_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        acceleratorType_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The type of hardware accelerators associated with this node.
+     * </pre>
+     *
+     * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return The bytes for acceleratorType.
+     */
+    public com.google.protobuf.ByteString
+        getAcceleratorTypeBytes() {
+      java.lang.Object ref = acceleratorType_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        acceleratorType_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The type of hardware accelerators associated with this node.
+     * </pre>
+     *
+     * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param value The acceleratorType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAcceleratorType(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      acceleratorType_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The type of hardware accelerators associated with this node.
+     * </pre>
+     *
+     * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearAcceleratorType() {
+      
+      acceleratorType_ = getDefaultInstance().getAcceleratorType();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The type of hardware accelerators associated with this node.
+     * </pre>
+     *
+     * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param value The bytes for acceleratorType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAcceleratorTypeBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      acceleratorType_ = value;
+      onChanged();
+      return this;
+    }
+
+    private int state_ = 0;
+    /**
+     * <pre>
+     * Output only. The current state for the TPU Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The enum numeric value on the wire for state.
+     */
+    @java.lang.Override public int getStateValue() {
+      return state_;
+    }
+    /**
+     * <pre>
+     * Output only. The current state for the TPU Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The enum numeric value on the wire for state to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStateValue(int value) {
+      
+      state_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The current state for the TPU Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The state.
+     */
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.Node.State getState() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.tpu.v2alpha1.Node.State result = com.google.cloud.tpu.v2alpha1.Node.State.valueOf(state_);
+      return result == null ? com.google.cloud.tpu.v2alpha1.Node.State.UNRECOGNIZED : result;
+    }
+    /**
+     * <pre>
+     * Output only. The current state for the TPU Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The state to set.
+     * @return This builder for chaining.
+     */
+    public Builder setState(com.google.cloud.tpu.v2alpha1.Node.State value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      
+      state_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The current state for the TPU Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearState() {
+      
+      state_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object healthDescription_ = "";
+    /**
+     * <pre>
+     * Output only. If this field is populated, it contains a description of why
+     * the TPU Node is unhealthy.
+     * </pre>
+     *
+     * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The healthDescription.
+     */
+    public java.lang.String getHealthDescription() {
+      java.lang.Object ref = healthDescription_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        healthDescription_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. If this field is populated, it contains a description of why
+     * the TPU Node is unhealthy.
+     * </pre>
+     *
+     * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The bytes for healthDescription.
+     */
+    public com.google.protobuf.ByteString
+        getHealthDescriptionBytes() {
+      java.lang.Object ref = healthDescription_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        healthDescription_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. If this field is populated, it contains a description of why
+     * the TPU Node is unhealthy.
+     * </pre>
+     *
+     * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The healthDescription to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHealthDescription(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      healthDescription_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. If this field is populated, it contains a description of why
+     * the TPU Node is unhealthy.
+     * </pre>
+     *
+     * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearHealthDescription() {
+      
+      healthDescription_ = getDefaultInstance().getHealthDescription();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. If this field is populated, it contains a description of why
+     * the TPU Node is unhealthy.
+     * </pre>
+     *
+     * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The bytes for healthDescription to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHealthDescriptionBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      healthDescription_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object runtimeVersion_ = "";
+    /**
+     * <pre>
+     * Required. The runtime version running in the Node.
+     * </pre>
+     *
+     * <code>string runtime_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return The runtimeVersion.
+     */
+    public java.lang.String getRuntimeVersion() {
+      java.lang.Object ref = runtimeVersion_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        runtimeVersion_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The runtime version running in the Node.
+     * </pre>
+     *
+     * <code>string runtime_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return The bytes for runtimeVersion.
+     */
+    public com.google.protobuf.ByteString
+        getRuntimeVersionBytes() {
+      java.lang.Object ref = runtimeVersion_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        runtimeVersion_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The runtime version running in the Node.
+     * </pre>
+     *
+     * <code>string runtime_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param value The runtimeVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setRuntimeVersion(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      runtimeVersion_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The runtime version running in the Node.
+     * </pre>
+     *
+     * <code>string runtime_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearRuntimeVersion() {
+      
+      runtimeVersion_ = getDefaultInstance().getRuntimeVersion();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The runtime version running in the Node.
+     * </pre>
+     *
+     * <code>string runtime_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @param value The bytes for runtimeVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setRuntimeVersionBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      runtimeVersion_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.tpu.v2alpha1.NetworkConfig networkConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.NetworkConfig, com.google.cloud.tpu.v2alpha1.NetworkConfig.Builder, com.google.cloud.tpu.v2alpha1.NetworkConfigOrBuilder> networkConfigBuilder_;
+    /**
+     * <pre>
+     * Network configurations for the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+     * @return Whether the networkConfig field is set.
+     */
+    public boolean hasNetworkConfig() {
+      return networkConfigBuilder_ != null || networkConfig_ != null;
+    }
+    /**
+     * <pre>
+     * Network configurations for the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+     * @return The networkConfig.
+     */
+    public com.google.cloud.tpu.v2alpha1.NetworkConfig getNetworkConfig() {
+      if (networkConfigBuilder_ == null) {
+        return networkConfig_ == null ? com.google.cloud.tpu.v2alpha1.NetworkConfig.getDefaultInstance() : networkConfig_;
+      } else {
+        return networkConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * Network configurations for the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+     */
+    public Builder setNetworkConfig(com.google.cloud.tpu.v2alpha1.NetworkConfig value) {
+      if (networkConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        networkConfig_ = value;
+        onChanged();
+      } else {
+        networkConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Network configurations for the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+     */
+    public Builder setNetworkConfig(
+        com.google.cloud.tpu.v2alpha1.NetworkConfig.Builder builderForValue) {
+      if (networkConfigBuilder_ == null) {
+        networkConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        networkConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Network configurations for the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+     */
+    public Builder mergeNetworkConfig(com.google.cloud.tpu.v2alpha1.NetworkConfig value) {
+      if (networkConfigBuilder_ == null) {
+        if (networkConfig_ != null) {
+          networkConfig_ =
+            com.google.cloud.tpu.v2alpha1.NetworkConfig.newBuilder(networkConfig_).mergeFrom(value).buildPartial();
+        } else {
+          networkConfig_ = value;
+        }
+        onChanged();
+      } else {
+        networkConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Network configurations for the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+     */
+    public Builder clearNetworkConfig() {
+      if (networkConfigBuilder_ == null) {
+        networkConfig_ = null;
+        onChanged();
+      } else {
+        networkConfig_ = null;
+        networkConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Network configurations for the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.NetworkConfig.Builder getNetworkConfigBuilder() {
+      
+      onChanged();
+      return getNetworkConfigFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * Network configurations for the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.NetworkConfigOrBuilder getNetworkConfigOrBuilder() {
+      if (networkConfigBuilder_ != null) {
+        return networkConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return networkConfig_ == null ?
+            com.google.cloud.tpu.v2alpha1.NetworkConfig.getDefaultInstance() : networkConfig_;
+      }
+    }
+    /**
+     * <pre>
+     * Network configurations for the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.NetworkConfig, com.google.cloud.tpu.v2alpha1.NetworkConfig.Builder, com.google.cloud.tpu.v2alpha1.NetworkConfigOrBuilder> 
+        getNetworkConfigFieldBuilder() {
+      if (networkConfigBuilder_ == null) {
+        networkConfigBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.NetworkConfig, com.google.cloud.tpu.v2alpha1.NetworkConfig.Builder, com.google.cloud.tpu.v2alpha1.NetworkConfigOrBuilder>(
+                getNetworkConfig(),
+                getParentForChildren(),
+                isClean());
+        networkConfig_ = null;
+      }
+      return networkConfigBuilder_;
+    }
+
+    private java.lang.Object cidrBlock_ = "";
+    /**
+     * <pre>
+     * The CIDR block that the TPU node will use when selecting an IP address.
+     * This CIDR block must be a /29 block; the Compute Engine networks API
+     * forbids a smaller block, and using a larger block would be wasteful (a
+     * node can only consume one IP address). Errors will occur if the CIDR block
+     * has already been used for a currently existing TPU node, the CIDR block
+     * conflicts with any subnetworks in the user's provided network, or the
+     * provided network is peered with another network that is using that CIDR
+     * block.
+     * </pre>
+     *
+     * <code>string cidr_block = 13;</code>
+     * @return The cidrBlock.
+     */
+    public java.lang.String getCidrBlock() {
+      java.lang.Object ref = cidrBlock_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        cidrBlock_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The CIDR block that the TPU node will use when selecting an IP address.
+     * This CIDR block must be a /29 block; the Compute Engine networks API
+     * forbids a smaller block, and using a larger block would be wasteful (a
+     * node can only consume one IP address). Errors will occur if the CIDR block
+     * has already been used for a currently existing TPU node, the CIDR block
+     * conflicts with any subnetworks in the user's provided network, or the
+     * provided network is peered with another network that is using that CIDR
+     * block.
+     * </pre>
+     *
+     * <code>string cidr_block = 13;</code>
+     * @return The bytes for cidrBlock.
+     */
+    public com.google.protobuf.ByteString
+        getCidrBlockBytes() {
+      java.lang.Object ref = cidrBlock_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        cidrBlock_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The CIDR block that the TPU node will use when selecting an IP address.
+     * This CIDR block must be a /29 block; the Compute Engine networks API
+     * forbids a smaller block, and using a larger block would be wasteful (a
+     * node can only consume one IP address). Errors will occur if the CIDR block
+     * has already been used for a currently existing TPU node, the CIDR block
+     * conflicts with any subnetworks in the user's provided network, or the
+     * provided network is peered with another network that is using that CIDR
+     * block.
+     * </pre>
+     *
+     * <code>string cidr_block = 13;</code>
+     * @param value The cidrBlock to set.
+     * @return This builder for chaining.
+     */
+    public Builder setCidrBlock(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      cidrBlock_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The CIDR block that the TPU node will use when selecting an IP address.
+     * This CIDR block must be a /29 block; the Compute Engine networks API
+     * forbids a smaller block, and using a larger block would be wasteful (a
+     * node can only consume one IP address). Errors will occur if the CIDR block
+     * has already been used for a currently existing TPU node, the CIDR block
+     * conflicts with any subnetworks in the user's provided network, or the
+     * provided network is peered with another network that is using that CIDR
+     * block.
+     * </pre>
+     *
+     * <code>string cidr_block = 13;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearCidrBlock() {
+      
+      cidrBlock_ = getDefaultInstance().getCidrBlock();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The CIDR block that the TPU node will use when selecting an IP address.
+     * This CIDR block must be a /29 block; the Compute Engine networks API
+     * forbids a smaller block, and using a larger block would be wasteful (a
+     * node can only consume one IP address). Errors will occur if the CIDR block
+     * has already been used for a currently existing TPU node, the CIDR block
+     * conflicts with any subnetworks in the user's provided network, or the
+     * provided network is peered with another network that is using that CIDR
+     * block.
+     * </pre>
+     *
+     * <code>string cidr_block = 13;</code>
+     * @param value The bytes for cidrBlock to set.
+     * @return This builder for chaining.
+     */
+    public Builder setCidrBlockBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      cidrBlock_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.tpu.v2alpha1.ServiceAccount serviceAccount_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.ServiceAccount, com.google.cloud.tpu.v2alpha1.ServiceAccount.Builder, com.google.cloud.tpu.v2alpha1.ServiceAccountOrBuilder> serviceAccountBuilder_;
+    /**
+     * <pre>
+     * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+     * If None is specified, the default compute service account will be used.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+     * @return Whether the serviceAccount field is set.
+     */
+    public boolean hasServiceAccount() {
+      return serviceAccountBuilder_ != null || serviceAccount_ != null;
+    }
+    /**
+     * <pre>
+     * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+     * If None is specified, the default compute service account will be used.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+     * @return The serviceAccount.
+     */
+    public com.google.cloud.tpu.v2alpha1.ServiceAccount getServiceAccount() {
+      if (serviceAccountBuilder_ == null) {
+        return serviceAccount_ == null ? com.google.cloud.tpu.v2alpha1.ServiceAccount.getDefaultInstance() : serviceAccount_;
+      } else {
+        return serviceAccountBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+     * If None is specified, the default compute service account will be used.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+     */
+    public Builder setServiceAccount(com.google.cloud.tpu.v2alpha1.ServiceAccount value) {
+      if (serviceAccountBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        serviceAccount_ = value;
+        onChanged();
+      } else {
+        serviceAccountBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+     * If None is specified, the default compute service account will be used.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+     */
+    public Builder setServiceAccount(
+        com.google.cloud.tpu.v2alpha1.ServiceAccount.Builder builderForValue) {
+      if (serviceAccountBuilder_ == null) {
+        serviceAccount_ = builderForValue.build();
+        onChanged();
+      } else {
+        serviceAccountBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+     * If None is specified, the default compute service account will be used.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+     */
+    public Builder mergeServiceAccount(com.google.cloud.tpu.v2alpha1.ServiceAccount value) {
+      if (serviceAccountBuilder_ == null) {
+        if (serviceAccount_ != null) {
+          serviceAccount_ =
+            com.google.cloud.tpu.v2alpha1.ServiceAccount.newBuilder(serviceAccount_).mergeFrom(value).buildPartial();
+        } else {
+          serviceAccount_ = value;
+        }
+        onChanged();
+      } else {
+        serviceAccountBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+     * If None is specified, the default compute service account will be used.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+     */
+    public Builder clearServiceAccount() {
+      if (serviceAccountBuilder_ == null) {
+        serviceAccount_ = null;
+        onChanged();
+      } else {
+        serviceAccount_ = null;
+        serviceAccountBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+     * If None is specified, the default compute service account will be used.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.ServiceAccount.Builder getServiceAccountBuilder() {
+      
+      onChanged();
+      return getServiceAccountFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+     * If None is specified, the default compute service account will be used.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.ServiceAccountOrBuilder getServiceAccountOrBuilder() {
+      if (serviceAccountBuilder_ != null) {
+        return serviceAccountBuilder_.getMessageOrBuilder();
+      } else {
+        return serviceAccount_ == null ?
+            com.google.cloud.tpu.v2alpha1.ServiceAccount.getDefaultInstance() : serviceAccount_;
+      }
+    }
+    /**
+     * <pre>
+     * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+     * If None is specified, the default compute service account will be used.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.ServiceAccount, com.google.cloud.tpu.v2alpha1.ServiceAccount.Builder, com.google.cloud.tpu.v2alpha1.ServiceAccountOrBuilder> 
+        getServiceAccountFieldBuilder() {
+      if (serviceAccountBuilder_ == null) {
+        serviceAccountBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.ServiceAccount, com.google.cloud.tpu.v2alpha1.ServiceAccount.Builder, com.google.cloud.tpu.v2alpha1.ServiceAccountOrBuilder>(
+                getServiceAccount(),
+                getParentForChildren(),
+                isClean());
+        serviceAccount_ = null;
+      }
+      return serviceAccountBuilder_;
+    }
+
+    private com.google.protobuf.Timestamp createTime_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> createTimeBuilder_;
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return Whether the createTime field is set.
+     */
+    public boolean hasCreateTime() {
+      return createTimeBuilder_ != null || createTime_ != null;
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The createTime.
+     */
+    public com.google.protobuf.Timestamp getCreateTime() {
+      if (createTimeBuilder_ == null) {
+        return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+      } else {
+        return createTimeBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder setCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        createTime_ = value;
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder setCreateTime(
+        com.google.protobuf.Timestamp.Builder builderForValue) {
+      if (createTimeBuilder_ == null) {
+        createTime_ = builderForValue.build();
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder mergeCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (createTime_ != null) {
+          createTime_ =
+            com.google.protobuf.Timestamp.newBuilder(createTime_).mergeFrom(value).buildPartial();
+        } else {
+          createTime_ = value;
+        }
+        onChanged();
+      } else {
+        createTimeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder clearCreateTime() {
+      if (createTimeBuilder_ == null) {
+        createTime_ = null;
+        onChanged();
+      } else {
+        createTime_ = null;
+        createTimeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.protobuf.Timestamp.Builder getCreateTimeBuilder() {
+      
+      onChanged();
+      return getCreateTimeFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+      if (createTimeBuilder_ != null) {
+        return createTimeBuilder_.getMessageOrBuilder();
+      } else {
+        return createTime_ == null ?
+            com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The time when the node was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
+        getCreateTimeFieldBuilder() {
+      if (createTimeBuilder_ == null) {
+        createTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
+                getCreateTime(),
+                getParentForChildren(),
+                isClean());
+        createTime_ = null;
+      }
+      return createTimeBuilder_;
+    }
+
+    private com.google.cloud.tpu.v2alpha1.SchedulingConfig schedulingConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.SchedulingConfig, com.google.cloud.tpu.v2alpha1.SchedulingConfig.Builder, com.google.cloud.tpu.v2alpha1.SchedulingConfigOrBuilder> schedulingConfigBuilder_;
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+     * @return Whether the schedulingConfig field is set.
+     */
+    public boolean hasSchedulingConfig() {
+      return schedulingConfigBuilder_ != null || schedulingConfig_ != null;
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+     * @return The schedulingConfig.
+     */
+    public com.google.cloud.tpu.v2alpha1.SchedulingConfig getSchedulingConfig() {
+      if (schedulingConfigBuilder_ == null) {
+        return schedulingConfig_ == null ? com.google.cloud.tpu.v2alpha1.SchedulingConfig.getDefaultInstance() : schedulingConfig_;
+      } else {
+        return schedulingConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    public Builder setSchedulingConfig(com.google.cloud.tpu.v2alpha1.SchedulingConfig value) {
+      if (schedulingConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        schedulingConfig_ = value;
+        onChanged();
+      } else {
+        schedulingConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    public Builder setSchedulingConfig(
+        com.google.cloud.tpu.v2alpha1.SchedulingConfig.Builder builderForValue) {
+      if (schedulingConfigBuilder_ == null) {
+        schedulingConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        schedulingConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    public Builder mergeSchedulingConfig(com.google.cloud.tpu.v2alpha1.SchedulingConfig value) {
+      if (schedulingConfigBuilder_ == null) {
+        if (schedulingConfig_ != null) {
+          schedulingConfig_ =
+            com.google.cloud.tpu.v2alpha1.SchedulingConfig.newBuilder(schedulingConfig_).mergeFrom(value).buildPartial();
+        } else {
+          schedulingConfig_ = value;
+        }
+        onChanged();
+      } else {
+        schedulingConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    public Builder clearSchedulingConfig() {
+      if (schedulingConfigBuilder_ == null) {
+        schedulingConfig_ = null;
+        onChanged();
+      } else {
+        schedulingConfig_ = null;
+        schedulingConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.SchedulingConfig.Builder getSchedulingConfigBuilder() {
+      
+      onChanged();
+      return getSchedulingConfigFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.SchedulingConfigOrBuilder getSchedulingConfigOrBuilder() {
+      if (schedulingConfigBuilder_ != null) {
+        return schedulingConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return schedulingConfig_ == null ?
+            com.google.cloud.tpu.v2alpha1.SchedulingConfig.getDefaultInstance() : schedulingConfig_;
+      }
+    }
+    /**
+     * <pre>
+     * The scheduling options for this node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.SchedulingConfig, com.google.cloud.tpu.v2alpha1.SchedulingConfig.Builder, com.google.cloud.tpu.v2alpha1.SchedulingConfigOrBuilder> 
+        getSchedulingConfigFieldBuilder() {
+      if (schedulingConfigBuilder_ == null) {
+        schedulingConfigBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.SchedulingConfig, com.google.cloud.tpu.v2alpha1.SchedulingConfig.Builder, com.google.cloud.tpu.v2alpha1.SchedulingConfigOrBuilder>(
+                getSchedulingConfig(),
+                getParentForChildren(),
+                isClean());
+        schedulingConfig_ = null;
+      }
+      return schedulingConfigBuilder_;
+    }
+
+    private java.util.List<com.google.cloud.tpu.v2alpha1.NetworkEndpoint> networkEndpoints_ =
+      java.util.Collections.emptyList();
+    private void ensureNetworkEndpointsIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        networkEndpoints_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.NetworkEndpoint>(networkEndpoints_);
+        bitField0_ |= 0x00000001;
+       }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.NetworkEndpoint, com.google.cloud.tpu.v2alpha1.NetworkEndpoint.Builder, com.google.cloud.tpu.v2alpha1.NetworkEndpointOrBuilder> networkEndpointsBuilder_;
+
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.NetworkEndpoint> getNetworkEndpointsList() {
+      if (networkEndpointsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(networkEndpoints_);
+      } else {
+        return networkEndpointsBuilder_.getMessageList();
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public int getNetworkEndpointsCount() {
+      if (networkEndpointsBuilder_ == null) {
+        return networkEndpoints_.size();
+      } else {
+        return networkEndpointsBuilder_.getCount();
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.NetworkEndpoint getNetworkEndpoints(int index) {
+      if (networkEndpointsBuilder_ == null) {
+        return networkEndpoints_.get(index);
+      } else {
+        return networkEndpointsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder setNetworkEndpoints(
+        int index, com.google.cloud.tpu.v2alpha1.NetworkEndpoint value) {
+      if (networkEndpointsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.set(index, value);
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder setNetworkEndpoints(
+        int index, com.google.cloud.tpu.v2alpha1.NetworkEndpoint.Builder builderForValue) {
+      if (networkEndpointsBuilder_ == null) {
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addNetworkEndpoints(com.google.cloud.tpu.v2alpha1.NetworkEndpoint value) {
+      if (networkEndpointsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.add(value);
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addNetworkEndpoints(
+        int index, com.google.cloud.tpu.v2alpha1.NetworkEndpoint value) {
+      if (networkEndpointsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.add(index, value);
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addNetworkEndpoints(
+        com.google.cloud.tpu.v2alpha1.NetworkEndpoint.Builder builderForValue) {
+      if (networkEndpointsBuilder_ == null) {
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.add(builderForValue.build());
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addNetworkEndpoints(
+        int index, com.google.cloud.tpu.v2alpha1.NetworkEndpoint.Builder builderForValue) {
+      if (networkEndpointsBuilder_ == null) {
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addAllNetworkEndpoints(
+        java.lang.Iterable<? extends com.google.cloud.tpu.v2alpha1.NetworkEndpoint> values) {
+      if (networkEndpointsBuilder_ == null) {
+        ensureNetworkEndpointsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, networkEndpoints_);
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder clearNetworkEndpoints() {
+      if (networkEndpointsBuilder_ == null) {
+        networkEndpoints_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder removeNetworkEndpoints(int index) {
+      if (networkEndpointsBuilder_ == null) {
+        ensureNetworkEndpointsIsMutable();
+        networkEndpoints_.remove(index);
+        onChanged();
+      } else {
+        networkEndpointsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.NetworkEndpoint.Builder getNetworkEndpointsBuilder(
+        int index) {
+      return getNetworkEndpointsFieldBuilder().getBuilder(index);
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.NetworkEndpointOrBuilder getNetworkEndpointsOrBuilder(
+        int index) {
+      if (networkEndpointsBuilder_ == null) {
+        return networkEndpoints_.get(index);  } else {
+        return networkEndpointsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public java.util.List<? extends com.google.cloud.tpu.v2alpha1.NetworkEndpointOrBuilder> 
+         getNetworkEndpointsOrBuilderList() {
+      if (networkEndpointsBuilder_ != null) {
+        return networkEndpointsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(networkEndpoints_);
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.NetworkEndpoint.Builder addNetworkEndpointsBuilder() {
+      return getNetworkEndpointsFieldBuilder().addBuilder(
+          com.google.cloud.tpu.v2alpha1.NetworkEndpoint.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.NetworkEndpoint.Builder addNetworkEndpointsBuilder(
+        int index) {
+      return getNetworkEndpointsFieldBuilder().addBuilder(
+          index, com.google.cloud.tpu.v2alpha1.NetworkEndpoint.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * Output only. The network endpoints where TPU workers can be accessed and
+     * sent work. It is recommended that runtime clients of the node reach out
+     * to the 0th entry in this map first.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.NetworkEndpoint.Builder> 
+         getNetworkEndpointsBuilderList() {
+      return getNetworkEndpointsFieldBuilder().getBuilderList();
+    }
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.NetworkEndpoint, com.google.cloud.tpu.v2alpha1.NetworkEndpoint.Builder, com.google.cloud.tpu.v2alpha1.NetworkEndpointOrBuilder> 
+        getNetworkEndpointsFieldBuilder() {
+      if (networkEndpointsBuilder_ == null) {
+        networkEndpointsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.NetworkEndpoint, com.google.cloud.tpu.v2alpha1.NetworkEndpoint.Builder, com.google.cloud.tpu.v2alpha1.NetworkEndpointOrBuilder>(
+                networkEndpoints_,
+                ((bitField0_ & 0x00000001) != 0),
+                getParentForChildren(),
+                isClean());
+        networkEndpoints_ = null;
+      }
+      return networkEndpointsBuilder_;
+    }
+
+    private int health_ = 0;
+    /**
+     * <pre>
+     * The health status of the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.Health health = 22;</code>
+     * @return The enum numeric value on the wire for health.
+     */
+    @java.lang.Override public int getHealthValue() {
+      return health_;
+    }
+    /**
+     * <pre>
+     * The health status of the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.Health health = 22;</code>
+     * @param value The enum numeric value on the wire for health to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHealthValue(int value) {
+      
+      health_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The health status of the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.Health health = 22;</code>
+     * @return The health.
+     */
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.Node.Health getHealth() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.tpu.v2alpha1.Node.Health result = com.google.cloud.tpu.v2alpha1.Node.Health.valueOf(health_);
+      return result == null ? com.google.cloud.tpu.v2alpha1.Node.Health.UNRECOGNIZED : result;
+    }
+    /**
+     * <pre>
+     * The health status of the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.Health health = 22;</code>
+     * @param value The health to set.
+     * @return This builder for chaining.
+     */
+    public Builder setHealth(com.google.cloud.tpu.v2alpha1.Node.Health value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      
+      health_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The health status of the TPU node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.Health health = 22;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearHealth() {
+      
+      health_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.MapField<
+        java.lang.String, java.lang.String> labels_;
+    private com.google.protobuf.MapField<java.lang.String, java.lang.String>
+    internalGetLabels() {
+      if (labels_ == null) {
+        return com.google.protobuf.MapField.emptyMapField(
+            LabelsDefaultEntryHolder.defaultEntry);
+      }
+      return labels_;
+    }
+    private com.google.protobuf.MapField<java.lang.String, java.lang.String>
+    internalGetMutableLabels() {
+      onChanged();;
+      if (labels_ == null) {
+        labels_ = com.google.protobuf.MapField.newMapField(
+            LabelsDefaultEntryHolder.defaultEntry);
+      }
+      if (!labels_.isMutable()) {
+        labels_ = labels_.copy();
+      }
+      return labels_;
+    }
+
+    public int getLabelsCount() {
+      return internalGetLabels().getMap().size();
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+
+    @java.lang.Override
+    public boolean containsLabels(
+        java.lang.String key) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      return internalGetLabels().getMap().containsKey(key);
+    }
+    /**
+     * Use {@link #getLabelsMap()} instead.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.util.Map<java.lang.String, java.lang.String> getLabels() {
+      return getLabelsMap();
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+    @java.lang.Override
+
+    public java.util.Map<java.lang.String, java.lang.String> getLabelsMap() {
+      return internalGetLabels().getMap();
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+    @java.lang.Override
+
+    public java.lang.String getLabelsOrDefault(
+        java.lang.String key,
+        java.lang.String defaultValue) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      java.util.Map<java.lang.String, java.lang.String> map =
+          internalGetLabels().getMap();
+      return map.containsKey(key) ? map.get(key) : defaultValue;
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+    @java.lang.Override
+
+    public java.lang.String getLabelsOrThrow(
+        java.lang.String key) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      java.util.Map<java.lang.String, java.lang.String> map =
+          internalGetLabels().getMap();
+      if (!map.containsKey(key)) {
+        throw new java.lang.IllegalArgumentException();
+      }
+      return map.get(key);
+    }
+
+    public Builder clearLabels() {
+      internalGetMutableLabels().getMutableMap()
+          .clear();
+      return this;
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+
+    public Builder removeLabels(
+        java.lang.String key) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      internalGetMutableLabels().getMutableMap()
+          .remove(key);
+      return this;
+    }
+    /**
+     * Use alternate mutation accessors instead.
+     */
+    @java.lang.Deprecated
+    public java.util.Map<java.lang.String, java.lang.String>
+    getMutableLabels() {
+      return internalGetMutableLabels().getMutableMap();
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+    public Builder putLabels(
+        java.lang.String key,
+        java.lang.String value) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      if (value == null) {
+  throw new NullPointerException("map value");
+}
+
+      internalGetMutableLabels().getMutableMap()
+          .put(key, value);
+      return this;
+    }
+    /**
+     * <pre>
+     * Resource labels to represent user-provided metadata.
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; labels = 24;</code>
+     */
+
+    public Builder putAllLabels(
+        java.util.Map<java.lang.String, java.lang.String> values) {
+      internalGetMutableLabels().getMutableMap()
+          .putAll(values);
+      return this;
+    }
+
+    private com.google.protobuf.MapField<
+        java.lang.String, java.lang.String> metadata_;
+    private com.google.protobuf.MapField<java.lang.String, java.lang.String>
+    internalGetMetadata() {
+      if (metadata_ == null) {
+        return com.google.protobuf.MapField.emptyMapField(
+            MetadataDefaultEntryHolder.defaultEntry);
+      }
+      return metadata_;
+    }
+    private com.google.protobuf.MapField<java.lang.String, java.lang.String>
+    internalGetMutableMetadata() {
+      onChanged();;
+      if (metadata_ == null) {
+        metadata_ = com.google.protobuf.MapField.newMapField(
+            MetadataDefaultEntryHolder.defaultEntry);
+      }
+      if (!metadata_.isMutable()) {
+        metadata_ = metadata_.copy();
+      }
+      return metadata_;
+    }
+
+    public int getMetadataCount() {
+      return internalGetMetadata().getMap().size();
+    }
+    /**
+     * <pre>
+     * Custom metadata to apply to the TPU Node.
+     * Can set startup-script and shutdown-script
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; metadata = 34;</code>
+     */
+
+    @java.lang.Override
+    public boolean containsMetadata(
+        java.lang.String key) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      return internalGetMetadata().getMap().containsKey(key);
+    }
+    /**
+     * Use {@link #getMetadataMap()} instead.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.util.Map<java.lang.String, java.lang.String> getMetadata() {
+      return getMetadataMap();
+    }
+    /**
+     * <pre>
+     * Custom metadata to apply to the TPU Node.
+     * Can set startup-script and shutdown-script
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; metadata = 34;</code>
+     */
+    @java.lang.Override
+
+    public java.util.Map<java.lang.String, java.lang.String> getMetadataMap() {
+      return internalGetMetadata().getMap();
+    }
+    /**
+     * <pre>
+     * Custom metadata to apply to the TPU Node.
+     * Can set startup-script and shutdown-script
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; metadata = 34;</code>
+     */
+    @java.lang.Override
+
+    public java.lang.String getMetadataOrDefault(
+        java.lang.String key,
+        java.lang.String defaultValue) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      java.util.Map<java.lang.String, java.lang.String> map =
+          internalGetMetadata().getMap();
+      return map.containsKey(key) ? map.get(key) : defaultValue;
+    }
+    /**
+     * <pre>
+     * Custom metadata to apply to the TPU Node.
+     * Can set startup-script and shutdown-script
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; metadata = 34;</code>
+     */
+    @java.lang.Override
+
+    public java.lang.String getMetadataOrThrow(
+        java.lang.String key) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      java.util.Map<java.lang.String, java.lang.String> map =
+          internalGetMetadata().getMap();
+      if (!map.containsKey(key)) {
+        throw new java.lang.IllegalArgumentException();
+      }
+      return map.get(key);
+    }
+
+    public Builder clearMetadata() {
+      internalGetMutableMetadata().getMutableMap()
+          .clear();
+      return this;
+    }
+    /**
+     * <pre>
+     * Custom metadata to apply to the TPU Node.
+     * Can set startup-script and shutdown-script
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; metadata = 34;</code>
+     */
+
+    public Builder removeMetadata(
+        java.lang.String key) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      internalGetMutableMetadata().getMutableMap()
+          .remove(key);
+      return this;
+    }
+    /**
+     * Use alternate mutation accessors instead.
+     */
+    @java.lang.Deprecated
+    public java.util.Map<java.lang.String, java.lang.String>
+    getMutableMetadata() {
+      return internalGetMutableMetadata().getMutableMap();
+    }
+    /**
+     * <pre>
+     * Custom metadata to apply to the TPU Node.
+     * Can set startup-script and shutdown-script
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; metadata = 34;</code>
+     */
+    public Builder putMetadata(
+        java.lang.String key,
+        java.lang.String value) {
+      if (key == null) { throw new NullPointerException("map key"); }
+      if (value == null) {
+  throw new NullPointerException("map value");
+}
+
+      internalGetMutableMetadata().getMutableMap()
+          .put(key, value);
+      return this;
+    }
+    /**
+     * <pre>
+     * Custom metadata to apply to the TPU Node.
+     * Can set startup-script and shutdown-script
+     * </pre>
+     *
+     * <code>map&lt;string, string&gt; metadata = 34;</code>
+     */
+
+    public Builder putAllMetadata(
+        java.util.Map<java.lang.String, java.lang.String> values) {
+      internalGetMutableMetadata().getMutableMap()
+          .putAll(values);
+      return this;
+    }
+
+    private com.google.protobuf.LazyStringList tags_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+    private void ensureTagsIsMutable() {
+      if (!((bitField0_ & 0x00000008) != 0)) {
+        tags_ = new com.google.protobuf.LazyStringArrayList(tags_);
+        bitField0_ |= 0x00000008;
+       }
+    }
+    /**
+     * <pre>
+     * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+     * targets for network firewalls.
+     * </pre>
+     *
+     * <code>repeated string tags = 40;</code>
+     * @return A list containing the tags.
+     */
+    public com.google.protobuf.ProtocolStringList
+        getTagsList() {
+      return tags_.getUnmodifiableView();
+    }
+    /**
+     * <pre>
+     * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+     * targets for network firewalls.
+     * </pre>
+     *
+     * <code>repeated string tags = 40;</code>
+     * @return The count of tags.
+     */
+    public int getTagsCount() {
+      return tags_.size();
+    }
+    /**
+     * <pre>
+     * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+     * targets for network firewalls.
+     * </pre>
+     *
+     * <code>repeated string tags = 40;</code>
+     * @param index The index of the element to return.
+     * @return The tags at the given index.
+     */
+    public java.lang.String getTags(int index) {
+      return tags_.get(index);
+    }
+    /**
+     * <pre>
+     * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+     * targets for network firewalls.
+     * </pre>
+     *
+     * <code>repeated string tags = 40;</code>
+     * @param index The index of the value to return.
+     * @return The bytes of the tags at the given index.
+     */
+    public com.google.protobuf.ByteString
+        getTagsBytes(int index) {
+      return tags_.getByteString(index);
+    }
+    /**
+     * <pre>
+     * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+     * targets for network firewalls.
+     * </pre>
+     *
+     * <code>repeated string tags = 40;</code>
+     * @param index The index to set the value at.
+     * @param value The tags to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTags(
+        int index, java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureTagsIsMutable();
+      tags_.set(index, value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+     * targets for network firewalls.
+     * </pre>
+     *
+     * <code>repeated string tags = 40;</code>
+     * @param value The tags to add.
+     * @return This builder for chaining.
+     */
+    public Builder addTags(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureTagsIsMutable();
+      tags_.add(value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+     * targets for network firewalls.
+     * </pre>
+     *
+     * <code>repeated string tags = 40;</code>
+     * @param values The tags to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllTags(
+        java.lang.Iterable<java.lang.String> values) {
+      ensureTagsIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(
+          values, tags_);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+     * targets for network firewalls.
+     * </pre>
+     *
+     * <code>repeated string tags = 40;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearTags() {
+      tags_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000008);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+     * targets for network firewalls.
+     * </pre>
+     *
+     * <code>repeated string tags = 40;</code>
+     * @param value The bytes of the tags to add.
+     * @return This builder for chaining.
+     */
+    public Builder addTagsBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      ensureTagsIsMutable();
+      tags_.add(value);
+      onChanged();
+      return this;
+    }
+
+    private long id_ ;
+    /**
+     * <pre>
+     * Output only. The unique identifier for the TPU Node.
+     * </pre>
+     *
+     * <code>int64 id = 33 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The id.
+     */
+    @java.lang.Override
+    public long getId() {
+      return id_;
+    }
+    /**
+     * <pre>
+     * Output only. The unique identifier for the TPU Node.
+     * </pre>
+     *
+     * <code>int64 id = 33 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The id to set.
+     * @return This builder for chaining.
+     */
+    public Builder setId(long value) {
+      
+      id_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The unique identifier for the TPU Node.
+     * </pre>
+     *
+     * <code>int64 id = 33 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearId() {
+      
+      id_ = 0L;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<com.google.cloud.tpu.v2alpha1.AttachedDisk> dataDisks_ =
+      java.util.Collections.emptyList();
+    private void ensureDataDisksIsMutable() {
+      if (!((bitField0_ & 0x00000010) != 0)) {
+        dataDisks_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.AttachedDisk>(dataDisks_);
+        bitField0_ |= 0x00000010;
+       }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.AttachedDisk, com.google.cloud.tpu.v2alpha1.AttachedDisk.Builder, com.google.cloud.tpu.v2alpha1.AttachedDiskOrBuilder> dataDisksBuilder_;
+
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.AttachedDisk> getDataDisksList() {
+      if (dataDisksBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(dataDisks_);
+      } else {
+        return dataDisksBuilder_.getMessageList();
+      }
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public int getDataDisksCount() {
+      if (dataDisksBuilder_ == null) {
+        return dataDisks_.size();
+      } else {
+        return dataDisksBuilder_.getCount();
+      }
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.AttachedDisk getDataDisks(int index) {
+      if (dataDisksBuilder_ == null) {
+        return dataDisks_.get(index);
+      } else {
+        return dataDisksBuilder_.getMessage(index);
+      }
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public Builder setDataDisks(
+        int index, com.google.cloud.tpu.v2alpha1.AttachedDisk value) {
+      if (dataDisksBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureDataDisksIsMutable();
+        dataDisks_.set(index, value);
+        onChanged();
+      } else {
+        dataDisksBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public Builder setDataDisks(
+        int index, com.google.cloud.tpu.v2alpha1.AttachedDisk.Builder builderForValue) {
+      if (dataDisksBuilder_ == null) {
+        ensureDataDisksIsMutable();
+        dataDisks_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        dataDisksBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public Builder addDataDisks(com.google.cloud.tpu.v2alpha1.AttachedDisk value) {
+      if (dataDisksBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureDataDisksIsMutable();
+        dataDisks_.add(value);
+        onChanged();
+      } else {
+        dataDisksBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public Builder addDataDisks(
+        int index, com.google.cloud.tpu.v2alpha1.AttachedDisk value) {
+      if (dataDisksBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureDataDisksIsMutable();
+        dataDisks_.add(index, value);
+        onChanged();
+      } else {
+        dataDisksBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public Builder addDataDisks(
+        com.google.cloud.tpu.v2alpha1.AttachedDisk.Builder builderForValue) {
+      if (dataDisksBuilder_ == null) {
+        ensureDataDisksIsMutable();
+        dataDisks_.add(builderForValue.build());
+        onChanged();
+      } else {
+        dataDisksBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public Builder addDataDisks(
+        int index, com.google.cloud.tpu.v2alpha1.AttachedDisk.Builder builderForValue) {
+      if (dataDisksBuilder_ == null) {
+        ensureDataDisksIsMutable();
+        dataDisks_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        dataDisksBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public Builder addAllDataDisks(
+        java.lang.Iterable<? extends com.google.cloud.tpu.v2alpha1.AttachedDisk> values) {
+      if (dataDisksBuilder_ == null) {
+        ensureDataDisksIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, dataDisks_);
+        onChanged();
+      } else {
+        dataDisksBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public Builder clearDataDisks() {
+      if (dataDisksBuilder_ == null) {
+        dataDisks_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000010);
+        onChanged();
+      } else {
+        dataDisksBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public Builder removeDataDisks(int index) {
+      if (dataDisksBuilder_ == null) {
+        ensureDataDisksIsMutable();
+        dataDisks_.remove(index);
+        onChanged();
+      } else {
+        dataDisksBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.AttachedDisk.Builder getDataDisksBuilder(
+        int index) {
+      return getDataDisksFieldBuilder().getBuilder(index);
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.AttachedDiskOrBuilder getDataDisksOrBuilder(
+        int index) {
+      if (dataDisksBuilder_ == null) {
+        return dataDisks_.get(index);  } else {
+        return dataDisksBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public java.util.List<? extends com.google.cloud.tpu.v2alpha1.AttachedDiskOrBuilder> 
+         getDataDisksOrBuilderList() {
+      if (dataDisksBuilder_ != null) {
+        return dataDisksBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(dataDisks_);
+      }
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.AttachedDisk.Builder addDataDisksBuilder() {
+      return getDataDisksFieldBuilder().addBuilder(
+          com.google.cloud.tpu.v2alpha1.AttachedDisk.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.AttachedDisk.Builder addDataDisksBuilder(
+        int index) {
+      return getDataDisksFieldBuilder().addBuilder(
+          index, com.google.cloud.tpu.v2alpha1.AttachedDisk.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * The additional data disks for the Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.AttachedDisk.Builder> 
+         getDataDisksBuilderList() {
+      return getDataDisksFieldBuilder().getBuilderList();
+    }
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.AttachedDisk, com.google.cloud.tpu.v2alpha1.AttachedDisk.Builder, com.google.cloud.tpu.v2alpha1.AttachedDiskOrBuilder> 
+        getDataDisksFieldBuilder() {
+      if (dataDisksBuilder_ == null) {
+        dataDisksBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.AttachedDisk, com.google.cloud.tpu.v2alpha1.AttachedDisk.Builder, com.google.cloud.tpu.v2alpha1.AttachedDiskOrBuilder>(
+                dataDisks_,
+                ((bitField0_ & 0x00000010) != 0),
+                getParentForChildren(),
+                isClean());
+        dataDisks_ = null;
+      }
+      return dataDisksBuilder_;
+    }
+
+    private int apiVersion_ = 0;
+    /**
+     * <pre>
+     * Output only. The API version that created this Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The enum numeric value on the wire for apiVersion.
+     */
+    @java.lang.Override public int getApiVersionValue() {
+      return apiVersion_;
+    }
+    /**
+     * <pre>
+     * Output only. The API version that created this Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The enum numeric value on the wire for apiVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setApiVersionValue(int value) {
+      
+      apiVersion_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The API version that created this Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return The apiVersion.
+     */
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.Node.ApiVersion getApiVersion() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.tpu.v2alpha1.Node.ApiVersion result = com.google.cloud.tpu.v2alpha1.Node.ApiVersion.valueOf(apiVersion_);
+      return result == null ? com.google.cloud.tpu.v2alpha1.Node.ApiVersion.UNRECOGNIZED : result;
+    }
+    /**
+     * <pre>
+     * Output only. The API version that created this Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @param value The apiVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setApiVersion(com.google.cloud.tpu.v2alpha1.Node.ApiVersion value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      
+      apiVersion_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The API version that created this Node.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearApiVersion() {
+      
+      apiVersion_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<com.google.cloud.tpu.v2alpha1.Symptom> symptoms_ =
+      java.util.Collections.emptyList();
+    private void ensureSymptomsIsMutable() {
+      if (!((bitField0_ & 0x00000020) != 0)) {
+        symptoms_ = new java.util.ArrayList<com.google.cloud.tpu.v2alpha1.Symptom>(symptoms_);
+        bitField0_ |= 0x00000020;
+       }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.Symptom, com.google.cloud.tpu.v2alpha1.Symptom.Builder, com.google.cloud.tpu.v2alpha1.SymptomOrBuilder> symptomsBuilder_;
+
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.Symptom> getSymptomsList() {
+      if (symptomsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(symptoms_);
+      } else {
+        return symptomsBuilder_.getMessageList();
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public int getSymptomsCount() {
+      if (symptomsBuilder_ == null) {
+        return symptoms_.size();
+      } else {
+        return symptomsBuilder_.getCount();
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.Symptom getSymptoms(int index) {
+      if (symptomsBuilder_ == null) {
+        return symptoms_.get(index);
+      } else {
+        return symptomsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder setSymptoms(
+        int index, com.google.cloud.tpu.v2alpha1.Symptom value) {
+      if (symptomsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSymptomsIsMutable();
+        symptoms_.set(index, value);
+        onChanged();
+      } else {
+        symptomsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder setSymptoms(
+        int index, com.google.cloud.tpu.v2alpha1.Symptom.Builder builderForValue) {
+      if (symptomsBuilder_ == null) {
+        ensureSymptomsIsMutable();
+        symptoms_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        symptomsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addSymptoms(com.google.cloud.tpu.v2alpha1.Symptom value) {
+      if (symptomsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSymptomsIsMutable();
+        symptoms_.add(value);
+        onChanged();
+      } else {
+        symptomsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addSymptoms(
+        int index, com.google.cloud.tpu.v2alpha1.Symptom value) {
+      if (symptomsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureSymptomsIsMutable();
+        symptoms_.add(index, value);
+        onChanged();
+      } else {
+        symptomsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addSymptoms(
+        com.google.cloud.tpu.v2alpha1.Symptom.Builder builderForValue) {
+      if (symptomsBuilder_ == null) {
+        ensureSymptomsIsMutable();
+        symptoms_.add(builderForValue.build());
+        onChanged();
+      } else {
+        symptomsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addSymptoms(
+        int index, com.google.cloud.tpu.v2alpha1.Symptom.Builder builderForValue) {
+      if (symptomsBuilder_ == null) {
+        ensureSymptomsIsMutable();
+        symptoms_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        symptomsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder addAllSymptoms(
+        java.lang.Iterable<? extends com.google.cloud.tpu.v2alpha1.Symptom> values) {
+      if (symptomsBuilder_ == null) {
+        ensureSymptomsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, symptoms_);
+        onChanged();
+      } else {
+        symptomsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder clearSymptoms() {
+      if (symptomsBuilder_ == null) {
+        symptoms_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000020);
+        onChanged();
+      } else {
+        symptomsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public Builder removeSymptoms(int index) {
+      if (symptomsBuilder_ == null) {
+        ensureSymptomsIsMutable();
+        symptoms_.remove(index);
+        onChanged();
+      } else {
+        symptomsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.Symptom.Builder getSymptomsBuilder(
+        int index) {
+      return getSymptomsFieldBuilder().getBuilder(index);
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.SymptomOrBuilder getSymptomsOrBuilder(
+        int index) {
+      if (symptomsBuilder_ == null) {
+        return symptoms_.get(index);  } else {
+        return symptomsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public java.util.List<? extends com.google.cloud.tpu.v2alpha1.SymptomOrBuilder> 
+         getSymptomsOrBuilderList() {
+      if (symptomsBuilder_ != null) {
+        return symptomsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(symptoms_);
+      }
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.Symptom.Builder addSymptomsBuilder() {
+      return getSymptomsFieldBuilder().addBuilder(
+          com.google.cloud.tpu.v2alpha1.Symptom.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.Symptom.Builder addSymptomsBuilder(
+        int index) {
+      return getSymptomsFieldBuilder().addBuilder(
+          index, com.google.cloud.tpu.v2alpha1.Symptom.getDefaultInstance());
+    }
+    /**
+     * <pre>
+     * Output only. The Symptoms that have occurred to the TPU Node.
+     * </pre>
+     *
+     * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+     */
+    public java.util.List<com.google.cloud.tpu.v2alpha1.Symptom.Builder> 
+         getSymptomsBuilderList() {
+      return getSymptomsFieldBuilder().getBuilderList();
+    }
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.Symptom, com.google.cloud.tpu.v2alpha1.Symptom.Builder, com.google.cloud.tpu.v2alpha1.SymptomOrBuilder> 
+        getSymptomsFieldBuilder() {
+      if (symptomsBuilder_ == null) {
+        symptomsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.Symptom, com.google.cloud.tpu.v2alpha1.Symptom.Builder, com.google.cloud.tpu.v2alpha1.SymptomOrBuilder>(
+                symptoms_,
+                ((bitField0_ & 0x00000020) != 0),
+                getParentForChildren(),
+                isClean());
+        symptoms_ = null;
+      }
+      return symptomsBuilder_;
+    }
+
+    private com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shieldedInstanceConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig, com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.Builder, com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfigOrBuilder> shieldedInstanceConfigBuilder_;
+    /**
+     * <pre>
+     * Shielded Instance options.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+     * @return Whether the shieldedInstanceConfig field is set.
+     */
+    public boolean hasShieldedInstanceConfig() {
+      return shieldedInstanceConfigBuilder_ != null || shieldedInstanceConfig_ != null;
+    }
+    /**
+     * <pre>
+     * Shielded Instance options.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+     * @return The shieldedInstanceConfig.
+     */
+    public com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig getShieldedInstanceConfig() {
+      if (shieldedInstanceConfigBuilder_ == null) {
+        return shieldedInstanceConfig_ == null ? com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.getDefaultInstance() : shieldedInstanceConfig_;
+      } else {
+        return shieldedInstanceConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * Shielded Instance options.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+     */
+    public Builder setShieldedInstanceConfig(com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig value) {
+      if (shieldedInstanceConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        shieldedInstanceConfig_ = value;
+        onChanged();
+      } else {
+        shieldedInstanceConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Shielded Instance options.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+     */
+    public Builder setShieldedInstanceConfig(
+        com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.Builder builderForValue) {
+      if (shieldedInstanceConfigBuilder_ == null) {
+        shieldedInstanceConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        shieldedInstanceConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Shielded Instance options.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+     */
+    public Builder mergeShieldedInstanceConfig(com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig value) {
+      if (shieldedInstanceConfigBuilder_ == null) {
+        if (shieldedInstanceConfig_ != null) {
+          shieldedInstanceConfig_ =
+            com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.newBuilder(shieldedInstanceConfig_).mergeFrom(value).buildPartial();
+        } else {
+          shieldedInstanceConfig_ = value;
+        }
+        onChanged();
+      } else {
+        shieldedInstanceConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Shielded Instance options.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+     */
+    public Builder clearShieldedInstanceConfig() {
+      if (shieldedInstanceConfigBuilder_ == null) {
+        shieldedInstanceConfig_ = null;
+        onChanged();
+      } else {
+        shieldedInstanceConfig_ = null;
+        shieldedInstanceConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Shielded Instance options.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.Builder getShieldedInstanceConfigBuilder() {
+      
+      onChanged();
+      return getShieldedInstanceConfigFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * Shielded Instance options.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfigOrBuilder getShieldedInstanceConfigOrBuilder() {
+      if (shieldedInstanceConfigBuilder_ != null) {
+        return shieldedInstanceConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return shieldedInstanceConfig_ == null ?
+            com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.getDefaultInstance() : shieldedInstanceConfig_;
+      }
+    }
+    /**
+     * <pre>
+     * Shielded Instance options.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig, com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.Builder, com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfigOrBuilder> 
+        getShieldedInstanceConfigFieldBuilder() {
+      if (shieldedInstanceConfigBuilder_ == null) {
+        shieldedInstanceConfigBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig, com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.Builder, com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfigOrBuilder>(
+                getShieldedInstanceConfig(),
+                getParentForChildren(),
+                isClean());
+        shieldedInstanceConfig_ = null;
+      }
+      return shieldedInstanceConfigBuilder_;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.Node)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.Node)
+  private static final com.google.cloud.tpu.v2alpha1.Node DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.Node();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.Node getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Node>
+      PARSER = new com.google.protobuf.AbstractParser<Node>() {
+    @java.lang.Override
+    public Node parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new Node(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<Node> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Node> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.Node getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NodeName.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NodeName.java
new file mode 100644
index 000000000000..43dcb62a3573
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NodeName.java
@@ -0,0 +1,217 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+@Generated("by gapic-generator-java")
+public class NodeName implements ResourceName {
+  private static final PathTemplate PROJECT_LOCATION_NODE =
+      PathTemplate.createWithoutUrlEncoding("projects/{project}/locations/{location}/nodes/{node}");
+  private volatile Map<String, String> fieldValuesMap;
+  private final String project;
+  private final String location;
+  private final String node;
+
+  @Deprecated
+  protected NodeName() {
+    project = null;
+    location = null;
+    node = null;
+  }
+
+  private NodeName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    node = Preconditions.checkNotNull(builder.getNode());
+  }
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getNode() {
+    return node;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static NodeName of(String project, String location, String node) {
+    return newBuilder().setProject(project).setLocation(location).setNode(node).build();
+  }
+
+  public static String format(String project, String location, String node) {
+    return newBuilder().setProject(project).setLocation(location).setNode(node).build().toString();
+  }
+
+  public static NodeName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PROJECT_LOCATION_NODE.validatedMatch(
+            formattedString, "NodeName.parse: formattedString not in valid format");
+    return of(matchMap.get("project"), matchMap.get("location"), matchMap.get("node"));
+  }
+
+  public static List<NodeName> parseList(List<String> formattedStrings) {
+    List<NodeName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<NodeName> values) {
+    List<String> list = new ArrayList<>(values.size());
+    for (NodeName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT_LOCATION_NODE.matches(formattedString);
+  }
+
+  @Override
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          if (node != null) {
+            fieldMapBuilder.put("node", node);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PROJECT_LOCATION_NODE.instantiate(
+        "project", project, "location", location, "node", node);
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      NodeName that = ((NodeName) o);
+      return Objects.equals(this.project, that.project)
+          && Objects.equals(this.location, that.location)
+          && Objects.equals(this.node, that.node);
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    h *= 1000003;
+    h ^= Objects.hashCode(node);
+    return h;
+  }
+
+  /** Builder for projects/{project}/locations/{location}/nodes/{node}. */
+  public static class Builder {
+    private String project;
+    private String location;
+    private String node;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getNode() {
+      return node;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setNode(String node) {
+      this.node = node;
+      return this;
+    }
+
+    private Builder(NodeName nodeName) {
+      this.project = nodeName.project;
+      this.location = nodeName.location;
+      this.node = nodeName.node;
+    }
+
+    public NodeName build() {
+      return new NodeName(this);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NodeOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NodeOrBuilder.java
new file mode 100644
index 000000000000..7a53c63f53d0
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NodeOrBuilder.java
@@ -0,0 +1,654 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface NodeOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.Node)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Output only. Immutable. The name of the TPU.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE];</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * Output only. Immutable. The name of the TPU.
+   * </pre>
+   *
+   * <code>string name = 1 [(.google.api.field_behavior) = OUTPUT_ONLY, (.google.api.field_behavior) = IMMUTABLE];</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+
+  /**
+   * <pre>
+   * The user-supplied description of the TPU. Maximum of 512 characters.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   * @return The description.
+   */
+  java.lang.String getDescription();
+  /**
+   * <pre>
+   * The user-supplied description of the TPU. Maximum of 512 characters.
+   * </pre>
+   *
+   * <code>string description = 3;</code>
+   * @return The bytes for description.
+   */
+  com.google.protobuf.ByteString
+      getDescriptionBytes();
+
+  /**
+   * <pre>
+   * Required. The type of hardware accelerators associated with this node.
+   * </pre>
+   *
+   * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The acceleratorType.
+   */
+  java.lang.String getAcceleratorType();
+  /**
+   * <pre>
+   * Required. The type of hardware accelerators associated with this node.
+   * </pre>
+   *
+   * <code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The bytes for acceleratorType.
+   */
+  com.google.protobuf.ByteString
+      getAcceleratorTypeBytes();
+
+  /**
+   * <pre>
+   * Output only. The current state for the TPU Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The enum numeric value on the wire for state.
+   */
+  int getStateValue();
+  /**
+   * <pre>
+   * Output only. The current state for the TPU Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node.State state = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The state.
+   */
+  com.google.cloud.tpu.v2alpha1.Node.State getState();
+
+  /**
+   * <pre>
+   * Output only. If this field is populated, it contains a description of why
+   * the TPU Node is unhealthy.
+   * </pre>
+   *
+   * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The healthDescription.
+   */
+  java.lang.String getHealthDescription();
+  /**
+   * <pre>
+   * Output only. If this field is populated, it contains a description of why
+   * the TPU Node is unhealthy.
+   * </pre>
+   *
+   * <code>string health_description = 10 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The bytes for healthDescription.
+   */
+  com.google.protobuf.ByteString
+      getHealthDescriptionBytes();
+
+  /**
+   * <pre>
+   * Required. The runtime version running in the Node.
+   * </pre>
+   *
+   * <code>string runtime_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The runtimeVersion.
+   */
+  java.lang.String getRuntimeVersion();
+  /**
+   * <pre>
+   * Required. The runtime version running in the Node.
+   * </pre>
+   *
+   * <code>string runtime_version = 11 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The bytes for runtimeVersion.
+   */
+  com.google.protobuf.ByteString
+      getRuntimeVersionBytes();
+
+  /**
+   * <pre>
+   * Network configurations for the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+   * @return Whether the networkConfig field is set.
+   */
+  boolean hasNetworkConfig();
+  /**
+   * <pre>
+   * Network configurations for the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+   * @return The networkConfig.
+   */
+  com.google.cloud.tpu.v2alpha1.NetworkConfig getNetworkConfig();
+  /**
+   * <pre>
+   * Network configurations for the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.NetworkConfig network_config = 36;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.NetworkConfigOrBuilder getNetworkConfigOrBuilder();
+
+  /**
+   * <pre>
+   * The CIDR block that the TPU node will use when selecting an IP address.
+   * This CIDR block must be a /29 block; the Compute Engine networks API
+   * forbids a smaller block, and using a larger block would be wasteful (a
+   * node can only consume one IP address). Errors will occur if the CIDR block
+   * has already been used for a currently existing TPU node, the CIDR block
+   * conflicts with any subnetworks in the user's provided network, or the
+   * provided network is peered with another network that is using that CIDR
+   * block.
+   * </pre>
+   *
+   * <code>string cidr_block = 13;</code>
+   * @return The cidrBlock.
+   */
+  java.lang.String getCidrBlock();
+  /**
+   * <pre>
+   * The CIDR block that the TPU node will use when selecting an IP address.
+   * This CIDR block must be a /29 block; the Compute Engine networks API
+   * forbids a smaller block, and using a larger block would be wasteful (a
+   * node can only consume one IP address). Errors will occur if the CIDR block
+   * has already been used for a currently existing TPU node, the CIDR block
+   * conflicts with any subnetworks in the user's provided network, or the
+   * provided network is peered with another network that is using that CIDR
+   * block.
+   * </pre>
+   *
+   * <code>string cidr_block = 13;</code>
+   * @return The bytes for cidrBlock.
+   */
+  com.google.protobuf.ByteString
+      getCidrBlockBytes();
+
+  /**
+   * <pre>
+   * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+   * If None is specified, the default compute service account will be used.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+   * @return Whether the serviceAccount field is set.
+   */
+  boolean hasServiceAccount();
+  /**
+   * <pre>
+   * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+   * If None is specified, the default compute service account will be used.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+   * @return The serviceAccount.
+   */
+  com.google.cloud.tpu.v2alpha1.ServiceAccount getServiceAccount();
+  /**
+   * <pre>
+   * The Google Cloud Platform Service Account to be used by the TPU node VMs.
+   * If None is specified, the default compute service account will be used.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ServiceAccount service_account = 37;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.ServiceAccountOrBuilder getServiceAccountOrBuilder();
+
+  /**
+   * <pre>
+   * Output only. The time when the node was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return Whether the createTime field is set.
+   */
+  boolean hasCreateTime();
+  /**
+   * <pre>
+   * Output only. The time when the node was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The createTime.
+   */
+  com.google.protobuf.Timestamp getCreateTime();
+  /**
+   * <pre>
+   * Output only. The time when the node was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder();
+
+  /**
+   * <pre>
+   * The scheduling options for this node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+   * @return Whether the schedulingConfig field is set.
+   */
+  boolean hasSchedulingConfig();
+  /**
+   * <pre>
+   * The scheduling options for this node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+   * @return The schedulingConfig.
+   */
+  com.google.cloud.tpu.v2alpha1.SchedulingConfig getSchedulingConfig();
+  /**
+   * <pre>
+   * The scheduling options for this node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.SchedulingConfig scheduling_config = 17;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.SchedulingConfigOrBuilder getSchedulingConfigOrBuilder();
+
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that runtime clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  java.util.List<com.google.cloud.tpu.v2alpha1.NetworkEndpoint> 
+      getNetworkEndpointsList();
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that runtime clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  com.google.cloud.tpu.v2alpha1.NetworkEndpoint getNetworkEndpoints(int index);
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that runtime clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  int getNetworkEndpointsCount();
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that runtime clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  java.util.List<? extends com.google.cloud.tpu.v2alpha1.NetworkEndpointOrBuilder> 
+      getNetworkEndpointsOrBuilderList();
+  /**
+   * <pre>
+   * Output only. The network endpoints where TPU workers can be accessed and
+   * sent work. It is recommended that runtime clients of the node reach out
+   * to the 0th entry in this map first.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.NetworkEndpoint network_endpoints = 21 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  com.google.cloud.tpu.v2alpha1.NetworkEndpointOrBuilder getNetworkEndpointsOrBuilder(
+      int index);
+
+  /**
+   * <pre>
+   * The health status of the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node.Health health = 22;</code>
+   * @return The enum numeric value on the wire for health.
+   */
+  int getHealthValue();
+  /**
+   * <pre>
+   * The health status of the TPU node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node.Health health = 22;</code>
+   * @return The health.
+   */
+  com.google.cloud.tpu.v2alpha1.Node.Health getHealth();
+
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+  int getLabelsCount();
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+  boolean containsLabels(
+      java.lang.String key);
+  /**
+   * Use {@link #getLabelsMap()} instead.
+   */
+  @java.lang.Deprecated
+  java.util.Map<java.lang.String, java.lang.String>
+  getLabels();
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+  java.util.Map<java.lang.String, java.lang.String>
+  getLabelsMap();
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+
+  /* nullable */
+java.lang.String getLabelsOrDefault(
+      java.lang.String key,
+      /* nullable */
+java.lang.String defaultValue);
+  /**
+   * <pre>
+   * Resource labels to represent user-provided metadata.
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; labels = 24;</code>
+   */
+
+  java.lang.String getLabelsOrThrow(
+      java.lang.String key);
+
+  /**
+   * <pre>
+   * Custom metadata to apply to the TPU Node.
+   * Can set startup-script and shutdown-script
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; metadata = 34;</code>
+   */
+  int getMetadataCount();
+  /**
+   * <pre>
+   * Custom metadata to apply to the TPU Node.
+   * Can set startup-script and shutdown-script
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; metadata = 34;</code>
+   */
+  boolean containsMetadata(
+      java.lang.String key);
+  /**
+   * Use {@link #getMetadataMap()} instead.
+   */
+  @java.lang.Deprecated
+  java.util.Map<java.lang.String, java.lang.String>
+  getMetadata();
+  /**
+   * <pre>
+   * Custom metadata to apply to the TPU Node.
+   * Can set startup-script and shutdown-script
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; metadata = 34;</code>
+   */
+  java.util.Map<java.lang.String, java.lang.String>
+  getMetadataMap();
+  /**
+   * <pre>
+   * Custom metadata to apply to the TPU Node.
+   * Can set startup-script and shutdown-script
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; metadata = 34;</code>
+   */
+
+  /* nullable */
+java.lang.String getMetadataOrDefault(
+      java.lang.String key,
+      /* nullable */
+java.lang.String defaultValue);
+  /**
+   * <pre>
+   * Custom metadata to apply to the TPU Node.
+   * Can set startup-script and shutdown-script
+   * </pre>
+   *
+   * <code>map&lt;string, string&gt; metadata = 34;</code>
+   */
+
+  java.lang.String getMetadataOrThrow(
+      java.lang.String key);
+
+  /**
+   * <pre>
+   * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+   * targets for network firewalls.
+   * </pre>
+   *
+   * <code>repeated string tags = 40;</code>
+   * @return A list containing the tags.
+   */
+  java.util.List<java.lang.String>
+      getTagsList();
+  /**
+   * <pre>
+   * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+   * targets for network firewalls.
+   * </pre>
+   *
+   * <code>repeated string tags = 40;</code>
+   * @return The count of tags.
+   */
+  int getTagsCount();
+  /**
+   * <pre>
+   * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+   * targets for network firewalls.
+   * </pre>
+   *
+   * <code>repeated string tags = 40;</code>
+   * @param index The index of the element to return.
+   * @return The tags at the given index.
+   */
+  java.lang.String getTags(int index);
+  /**
+   * <pre>
+   * Tags to apply to the TPU Node. Tags are used to identify valid sources or
+   * targets for network firewalls.
+   * </pre>
+   *
+   * <code>repeated string tags = 40;</code>
+   * @param index The index of the value to return.
+   * @return The bytes of the tags at the given index.
+   */
+  com.google.protobuf.ByteString
+      getTagsBytes(int index);
+
+  /**
+   * <pre>
+   * Output only. The unique identifier for the TPU Node.
+   * </pre>
+   *
+   * <code>int64 id = 33 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The id.
+   */
+  long getId();
+
+  /**
+   * <pre>
+   * The additional data disks for the Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+   */
+  java.util.List<com.google.cloud.tpu.v2alpha1.AttachedDisk> 
+      getDataDisksList();
+  /**
+   * <pre>
+   * The additional data disks for the Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.AttachedDisk getDataDisks(int index);
+  /**
+   * <pre>
+   * The additional data disks for the Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+   */
+  int getDataDisksCount();
+  /**
+   * <pre>
+   * The additional data disks for the Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+   */
+  java.util.List<? extends com.google.cloud.tpu.v2alpha1.AttachedDiskOrBuilder> 
+      getDataDisksOrBuilderList();
+  /**
+   * <pre>
+   * The additional data disks for the Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.AttachedDisk data_disks = 41;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.AttachedDiskOrBuilder getDataDisksOrBuilder(
+      int index);
+
+  /**
+   * <pre>
+   * Output only. The API version that created this Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The enum numeric value on the wire for apiVersion.
+   */
+  int getApiVersionValue();
+  /**
+   * <pre>
+   * Output only. The API version that created this Node.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node.ApiVersion api_version = 38 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   * @return The apiVersion.
+   */
+  com.google.cloud.tpu.v2alpha1.Node.ApiVersion getApiVersion();
+
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  java.util.List<com.google.cloud.tpu.v2alpha1.Symptom> 
+      getSymptomsList();
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  com.google.cloud.tpu.v2alpha1.Symptom getSymptoms(int index);
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  int getSymptomsCount();
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  java.util.List<? extends com.google.cloud.tpu.v2alpha1.SymptomOrBuilder> 
+      getSymptomsOrBuilderList();
+  /**
+   * <pre>
+   * Output only. The Symptoms that have occurred to the TPU Node.
+   * </pre>
+   *
+   * <code>repeated .google.cloud.tpu.v2alpha1.Symptom symptoms = 39 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
+   */
+  com.google.cloud.tpu.v2alpha1.SymptomOrBuilder getSymptomsOrBuilder(
+      int index);
+
+  /**
+   * <pre>
+   * Shielded Instance options.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+   * @return Whether the shieldedInstanceConfig field is set.
+   */
+  boolean hasShieldedInstanceConfig();
+  /**
+   * <pre>
+   * Shielded Instance options.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+   * @return The shieldedInstanceConfig.
+   */
+  com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig getShieldedInstanceConfig();
+  /**
+   * <pre>
+   * Shielded Instance options.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig shielded_instance_config = 45;</code>
+   */
+  com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfigOrBuilder getShieldedInstanceConfigOrBuilder();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadata.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadata.java
new file mode 100644
index 000000000000..73da95932fc2
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadata.java
@@ -0,0 +1,1653 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Metadata describing an [Operation][google.longrunning.Operation]
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.OperationMetadata}
+ */
+public final class OperationMetadata extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.OperationMetadata)
+    OperationMetadataOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use OperationMetadata.newBuilder() to construct.
+  private OperationMetadata(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private OperationMetadata() {
+    target_ = "";
+    verb_ = "";
+    statusDetail_ = "";
+    apiVersion_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new OperationMetadata();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private OperationMetadata(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            com.google.protobuf.Timestamp.Builder subBuilder = null;
+            if (createTime_ != null) {
+              subBuilder = createTime_.toBuilder();
+            }
+            createTime_ = input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(createTime_);
+              createTime_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          case 18: {
+            com.google.protobuf.Timestamp.Builder subBuilder = null;
+            if (endTime_ != null) {
+              subBuilder = endTime_.toBuilder();
+            }
+            endTime_ = input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(endTime_);
+              endTime_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            target_ = s;
+            break;
+          }
+          case 34: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            verb_ = s;
+            break;
+          }
+          case 42: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            statusDetail_ = s;
+            break;
+          }
+          case 48: {
+
+            cancelRequested_ = input.readBool();
+            break;
+          }
+          case 58: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            apiVersion_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_OperationMetadata_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_OperationMetadata_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.OperationMetadata.class, com.google.cloud.tpu.v2alpha1.OperationMetadata.Builder.class);
+  }
+
+  public static final int CREATE_TIME_FIELD_NUMBER = 1;
+  private com.google.protobuf.Timestamp createTime_;
+  /**
+   * <pre>
+   * The time the operation was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return Whether the createTime field is set.
+   */
+  @java.lang.Override
+  public boolean hasCreateTime() {
+    return createTime_ != null;
+  }
+  /**
+   * <pre>
+   * The time the operation was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return The createTime.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getCreateTime() {
+    return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+  }
+  /**
+   * <pre>
+   * The time the operation was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+    return getCreateTime();
+  }
+
+  public static final int END_TIME_FIELD_NUMBER = 2;
+  private com.google.protobuf.Timestamp endTime_;
+  /**
+   * <pre>
+   * The time the operation finished running.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp end_time = 2;</code>
+   * @return Whether the endTime field is set.
+   */
+  @java.lang.Override
+  public boolean hasEndTime() {
+    return endTime_ != null;
+  }
+  /**
+   * <pre>
+   * The time the operation finished running.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp end_time = 2;</code>
+   * @return The endTime.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getEndTime() {
+    return endTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : endTime_;
+  }
+  /**
+   * <pre>
+   * The time the operation finished running.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp end_time = 2;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.TimestampOrBuilder getEndTimeOrBuilder() {
+    return getEndTime();
+  }
+
+  public static final int TARGET_FIELD_NUMBER = 3;
+  private volatile java.lang.Object target_;
+  /**
+   * <pre>
+   * Target of the operation - for example
+   * projects/project-1/connectivityTests/test-1
+   * </pre>
+   *
+   * <code>string target = 3;</code>
+   * @return The target.
+   */
+  @java.lang.Override
+  public java.lang.String getTarget() {
+    java.lang.Object ref = target_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      target_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Target of the operation - for example
+   * projects/project-1/connectivityTests/test-1
+   * </pre>
+   *
+   * <code>string target = 3;</code>
+   * @return The bytes for target.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getTargetBytes() {
+    java.lang.Object ref = target_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      target_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int VERB_FIELD_NUMBER = 4;
+  private volatile java.lang.Object verb_;
+  /**
+   * <pre>
+   * Name of the verb executed by the operation.
+   * </pre>
+   *
+   * <code>string verb = 4;</code>
+   * @return The verb.
+   */
+  @java.lang.Override
+  public java.lang.String getVerb() {
+    java.lang.Object ref = verb_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      verb_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Name of the verb executed by the operation.
+   * </pre>
+   *
+   * <code>string verb = 4;</code>
+   * @return The bytes for verb.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getVerbBytes() {
+    java.lang.Object ref = verb_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      verb_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int STATUS_DETAIL_FIELD_NUMBER = 5;
+  private volatile java.lang.Object statusDetail_;
+  /**
+   * <pre>
+   * Human-readable status of the operation, if any.
+   * </pre>
+   *
+   * <code>string status_detail = 5;</code>
+   * @return The statusDetail.
+   */
+  @java.lang.Override
+  public java.lang.String getStatusDetail() {
+    java.lang.Object ref = statusDetail_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      statusDetail_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Human-readable status of the operation, if any.
+   * </pre>
+   *
+   * <code>string status_detail = 5;</code>
+   * @return The bytes for statusDetail.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getStatusDetailBytes() {
+    java.lang.Object ref = statusDetail_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      statusDetail_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int CANCEL_REQUESTED_FIELD_NUMBER = 6;
+  private boolean cancelRequested_;
+  /**
+   * <pre>
+   * Specifies if cancellation was requested for the operation.
+   * </pre>
+   *
+   * <code>bool cancel_requested = 6;</code>
+   * @return The cancelRequested.
+   */
+  @java.lang.Override
+  public boolean getCancelRequested() {
+    return cancelRequested_;
+  }
+
+  public static final int API_VERSION_FIELD_NUMBER = 7;
+  private volatile java.lang.Object apiVersion_;
+  /**
+   * <pre>
+   * API version.
+   * </pre>
+   *
+   * <code>string api_version = 7;</code>
+   * @return The apiVersion.
+   */
+  @java.lang.Override
+  public java.lang.String getApiVersion() {
+    java.lang.Object ref = apiVersion_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      apiVersion_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * API version.
+   * </pre>
+   *
+   * <code>string api_version = 7;</code>
+   * @return The bytes for apiVersion.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getApiVersionBytes() {
+    java.lang.Object ref = apiVersion_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      apiVersion_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (createTime_ != null) {
+      output.writeMessage(1, getCreateTime());
+    }
+    if (endTime_ != null) {
+      output.writeMessage(2, getEndTime());
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(target_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, target_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(verb_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, verb_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(statusDetail_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 5, statusDetail_);
+    }
+    if (cancelRequested_ != false) {
+      output.writeBool(6, cancelRequested_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(apiVersion_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 7, apiVersion_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (createTime_ != null) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(1, getCreateTime());
+    }
+    if (endTime_ != null) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(2, getEndTime());
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(target_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, target_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(verb_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, verb_);
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+      com.google.protobuf.ByteString data)
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+  public static com.google.cloud.tpu.v2alpha1.OperationMetadata parseFrom(
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+    return PARSER.parseFrom(data, extensionRegistry);
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+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+      throws java.io.IOException {
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v2alpha1.OperationMetadata parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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+  public static com.google.cloud.tpu.v2alpha1.OperationMetadata parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v2alpha1.OperationMetadata parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
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+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
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+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.OperationMetadata prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
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+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
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+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
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+  /**
+   * <pre>
+   * Metadata describing an [Operation][google.longrunning.Operation]
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.OperationMetadata}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.OperationMetadata)
+      com.google.cloud.tpu.v2alpha1.OperationMetadataOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_OperationMetadata_descriptor;
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+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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+    }
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+    private Builder() {
+      maybeForceBuilderInitialization();
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+    private Builder(
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+      verb_ = "";
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+      statusDetail_ = "";
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+      cancelRequested_ = false;
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+      apiVersion_ = "";
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+      return this;
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+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_OperationMetadata_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.OperationMetadata getDefaultInstanceForType() {
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+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.OperationMetadata buildPartial() {
+      com.google.cloud.tpu.v2alpha1.OperationMetadata result = new com.google.cloud.tpu.v2alpha1.OperationMetadata(this);
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+      result.statusDetail_ = statusDetail_;
+      result.cancelRequested_ = cancelRequested_;
+      result.apiVersion_ = apiVersion_;
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+        com.google.protobuf.Descriptors.FieldDescriptor field,
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+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.OperationMetadata) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.OperationMetadata)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.OperationMetadata other) {
+      if (other == com.google.cloud.tpu.v2alpha1.OperationMetadata.getDefaultInstance()) return this;
+      if (other.hasCreateTime()) {
+        mergeCreateTime(other.getCreateTime());
+      }
+      if (other.hasEndTime()) {
+        mergeEndTime(other.getEndTime());
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+      if (!other.getTarget().isEmpty()) {
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+      if (!other.getStatusDetail().isEmpty()) {
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+        onChanged();
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.OperationMetadata parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.OperationMetadata) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.protobuf.Timestamp createTime_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> createTimeBuilder_;
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     * @return Whether the createTime field is set.
+     */
+    public boolean hasCreateTime() {
+      return createTimeBuilder_ != null || createTime_ != null;
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     * @return The createTime.
+     */
+    public com.google.protobuf.Timestamp getCreateTime() {
+      if (createTimeBuilder_ == null) {
+        return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+      } else {
+        return createTimeBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder setCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        createTime_ = value;
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder setCreateTime(
+        com.google.protobuf.Timestamp.Builder builderForValue) {
+      if (createTimeBuilder_ == null) {
+        createTime_ = builderForValue.build();
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder mergeCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (createTime_ != null) {
+          createTime_ =
+            com.google.protobuf.Timestamp.newBuilder(createTime_).mergeFrom(value).buildPartial();
+        } else {
+          createTime_ = value;
+        }
+        onChanged();
+      } else {
+        createTimeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder clearCreateTime() {
+      if (createTimeBuilder_ == null) {
+        createTime_ = null;
+        onChanged();
+      } else {
+        createTime_ = null;
+        createTimeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public com.google.protobuf.Timestamp.Builder getCreateTimeBuilder() {
+      
+      onChanged();
+      return getCreateTimeFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+      if (createTimeBuilder_ != null) {
+        return createTimeBuilder_.getMessageOrBuilder();
+      } else {
+        return createTime_ == null ?
+            com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+      }
+    }
+    /**
+     * <pre>
+     * The time the operation was created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
+        getCreateTimeFieldBuilder() {
+      if (createTimeBuilder_ == null) {
+        createTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
+                getCreateTime(),
+                getParentForChildren(),
+                isClean());
+        createTime_ = null;
+      }
+      return createTimeBuilder_;
+    }
+
+    private com.google.protobuf.Timestamp endTime_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> endTimeBuilder_;
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     * @return Whether the endTime field is set.
+     */
+    public boolean hasEndTime() {
+      return endTimeBuilder_ != null || endTime_ != null;
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     * @return The endTime.
+     */
+    public com.google.protobuf.Timestamp getEndTime() {
+      if (endTimeBuilder_ == null) {
+        return endTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : endTime_;
+      } else {
+        return endTimeBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    public Builder setEndTime(com.google.protobuf.Timestamp value) {
+      if (endTimeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        endTime_ = value;
+        onChanged();
+      } else {
+        endTimeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    public Builder setEndTime(
+        com.google.protobuf.Timestamp.Builder builderForValue) {
+      if (endTimeBuilder_ == null) {
+        endTime_ = builderForValue.build();
+        onChanged();
+      } else {
+        endTimeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    public Builder mergeEndTime(com.google.protobuf.Timestamp value) {
+      if (endTimeBuilder_ == null) {
+        if (endTime_ != null) {
+          endTime_ =
+            com.google.protobuf.Timestamp.newBuilder(endTime_).mergeFrom(value).buildPartial();
+        } else {
+          endTime_ = value;
+        }
+        onChanged();
+      } else {
+        endTimeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    public Builder clearEndTime() {
+      if (endTimeBuilder_ == null) {
+        endTime_ = null;
+        onChanged();
+      } else {
+        endTime_ = null;
+        endTimeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    public com.google.protobuf.Timestamp.Builder getEndTimeBuilder() {
+      
+      onChanged();
+      return getEndTimeFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    public com.google.protobuf.TimestampOrBuilder getEndTimeOrBuilder() {
+      if (endTimeBuilder_ != null) {
+        return endTimeBuilder_.getMessageOrBuilder();
+      } else {
+        return endTime_ == null ?
+            com.google.protobuf.Timestamp.getDefaultInstance() : endTime_;
+      }
+    }
+    /**
+     * <pre>
+     * The time the operation finished running.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp end_time = 2;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
+        getEndTimeFieldBuilder() {
+      if (endTimeBuilder_ == null) {
+        endTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
+                getEndTime(),
+                getParentForChildren(),
+                isClean());
+        endTime_ = null;
+      }
+      return endTimeBuilder_;
+    }
+
+    private java.lang.Object target_ = "";
+    /**
+     * <pre>
+     * Target of the operation - for example
+     * projects/project-1/connectivityTests/test-1
+     * </pre>
+     *
+     * <code>string target = 3;</code>
+     * @return The target.
+     */
+    public java.lang.String getTarget() {
+      java.lang.Object ref = target_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        target_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Target of the operation - for example
+     * projects/project-1/connectivityTests/test-1
+     * </pre>
+     *
+     * <code>string target = 3;</code>
+     * @return The bytes for target.
+     */
+    public com.google.protobuf.ByteString
+        getTargetBytes() {
+      java.lang.Object ref = target_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        target_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Target of the operation - for example
+     * projects/project-1/connectivityTests/test-1
+     * </pre>
+     *
+     * <code>string target = 3;</code>
+     * @param value The target to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTarget(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      target_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Target of the operation - for example
+     * projects/project-1/connectivityTests/test-1
+     * </pre>
+     *
+     * <code>string target = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearTarget() {
+      
+      target_ = getDefaultInstance().getTarget();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Target of the operation - for example
+     * projects/project-1/connectivityTests/test-1
+     * </pre>
+     *
+     * <code>string target = 3;</code>
+     * @param value The bytes for target to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTargetBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      target_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object verb_ = "";
+    /**
+     * <pre>
+     * Name of the verb executed by the operation.
+     * </pre>
+     *
+     * <code>string verb = 4;</code>
+     * @return The verb.
+     */
+    public java.lang.String getVerb() {
+      java.lang.Object ref = verb_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        verb_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Name of the verb executed by the operation.
+     * </pre>
+     *
+     * <code>string verb = 4;</code>
+     * @return The bytes for verb.
+     */
+    public com.google.protobuf.ByteString
+        getVerbBytes() {
+      java.lang.Object ref = verb_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        verb_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Name of the verb executed by the operation.
+     * </pre>
+     *
+     * <code>string verb = 4;</code>
+     * @param value The verb to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVerb(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      verb_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Name of the verb executed by the operation.
+     * </pre>
+     *
+     * <code>string verb = 4;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearVerb() {
+      
+      verb_ = getDefaultInstance().getVerb();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Name of the verb executed by the operation.
+     * </pre>
+     *
+     * <code>string verb = 4;</code>
+     * @param value The bytes for verb to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVerbBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      verb_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object statusDetail_ = "";
+    /**
+     * <pre>
+     * Human-readable status of the operation, if any.
+     * </pre>
+     *
+     * <code>string status_detail = 5;</code>
+     * @return The statusDetail.
+     */
+    public java.lang.String getStatusDetail() {
+      java.lang.Object ref = statusDetail_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        statusDetail_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Human-readable status of the operation, if any.
+     * </pre>
+     *
+     * <code>string status_detail = 5;</code>
+     * @return The bytes for statusDetail.
+     */
+    public com.google.protobuf.ByteString
+        getStatusDetailBytes() {
+      java.lang.Object ref = statusDetail_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        statusDetail_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Human-readable status of the operation, if any.
+     * </pre>
+     *
+     * <code>string status_detail = 5;</code>
+     * @param value The statusDetail to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStatusDetail(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      statusDetail_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Human-readable status of the operation, if any.
+     * </pre>
+     *
+     * <code>string status_detail = 5;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearStatusDetail() {
+      
+      statusDetail_ = getDefaultInstance().getStatusDetail();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Human-readable status of the operation, if any.
+     * </pre>
+     *
+     * <code>string status_detail = 5;</code>
+     * @param value The bytes for statusDetail to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStatusDetailBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      statusDetail_ = value;
+      onChanged();
+      return this;
+    }
+
+    private boolean cancelRequested_ ;
+    /**
+     * <pre>
+     * Specifies if cancellation was requested for the operation.
+     * </pre>
+     *
+     * <code>bool cancel_requested = 6;</code>
+     * @return The cancelRequested.
+     */
+    @java.lang.Override
+    public boolean getCancelRequested() {
+      return cancelRequested_;
+    }
+    /**
+     * <pre>
+     * Specifies if cancellation was requested for the operation.
+     * </pre>
+     *
+     * <code>bool cancel_requested = 6;</code>
+     * @param value The cancelRequested to set.
+     * @return This builder for chaining.
+     */
+    public Builder setCancelRequested(boolean value) {
+      
+      cancelRequested_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Specifies if cancellation was requested for the operation.
+     * </pre>
+     *
+     * <code>bool cancel_requested = 6;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearCancelRequested() {
+      
+      cancelRequested_ = false;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object apiVersion_ = "";
+    /**
+     * <pre>
+     * API version.
+     * </pre>
+     *
+     * <code>string api_version = 7;</code>
+     * @return The apiVersion.
+     */
+    public java.lang.String getApiVersion() {
+      java.lang.Object ref = apiVersion_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        apiVersion_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * API version.
+     * </pre>
+     *
+     * <code>string api_version = 7;</code>
+     * @return The bytes for apiVersion.
+     */
+    public com.google.protobuf.ByteString
+        getApiVersionBytes() {
+      java.lang.Object ref = apiVersion_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        apiVersion_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * API version.
+     * </pre>
+     *
+     * <code>string api_version = 7;</code>
+     * @param value The apiVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setApiVersion(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      apiVersion_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * API version.
+     * </pre>
+     *
+     * <code>string api_version = 7;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearApiVersion() {
+      
+      apiVersion_ = getDefaultInstance().getApiVersion();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * API version.
+     * </pre>
+     *
+     * <code>string api_version = 7;</code>
+     * @param value The bytes for apiVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setApiVersionBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      apiVersion_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.OperationMetadata)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.OperationMetadata)
+  private static final com.google.cloud.tpu.v2alpha1.OperationMetadata DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.OperationMetadata();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.OperationMetadata getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<OperationMetadata>
+      PARSER = new com.google.protobuf.AbstractParser<OperationMetadata>() {
+    @java.lang.Override
+    public OperationMetadata parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new OperationMetadata(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<OperationMetadata> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<OperationMetadata> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.OperationMetadata getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadataOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadataOrBuilder.java
new file mode 100644
index 000000000000..c6e532d4d93b
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/OperationMetadataOrBuilder.java
@@ -0,0 +1,155 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface OperationMetadataOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.OperationMetadata)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The time the operation was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return Whether the createTime field is set.
+   */
+  boolean hasCreateTime();
+  /**
+   * <pre>
+   * The time the operation was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return The createTime.
+   */
+  com.google.protobuf.Timestamp getCreateTime();
+  /**
+   * <pre>
+   * The time the operation was created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   */
+  com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder();
+
+  /**
+   * <pre>
+   * The time the operation finished running.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp end_time = 2;</code>
+   * @return Whether the endTime field is set.
+   */
+  boolean hasEndTime();
+  /**
+   * <pre>
+   * The time the operation finished running.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp end_time = 2;</code>
+   * @return The endTime.
+   */
+  com.google.protobuf.Timestamp getEndTime();
+  /**
+   * <pre>
+   * The time the operation finished running.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp end_time = 2;</code>
+   */
+  com.google.protobuf.TimestampOrBuilder getEndTimeOrBuilder();
+
+  /**
+   * <pre>
+   * Target of the operation - for example
+   * projects/project-1/connectivityTests/test-1
+   * </pre>
+   *
+   * <code>string target = 3;</code>
+   * @return The target.
+   */
+  java.lang.String getTarget();
+  /**
+   * <pre>
+   * Target of the operation - for example
+   * projects/project-1/connectivityTests/test-1
+   * </pre>
+   *
+   * <code>string target = 3;</code>
+   * @return The bytes for target.
+   */
+  com.google.protobuf.ByteString
+      getTargetBytes();
+
+  /**
+   * <pre>
+   * Name of the verb executed by the operation.
+   * </pre>
+   *
+   * <code>string verb = 4;</code>
+   * @return The verb.
+   */
+  java.lang.String getVerb();
+  /**
+   * <pre>
+   * Name of the verb executed by the operation.
+   * </pre>
+   *
+   * <code>string verb = 4;</code>
+   * @return The bytes for verb.
+   */
+  com.google.protobuf.ByteString
+      getVerbBytes();
+
+  /**
+   * <pre>
+   * Human-readable status of the operation, if any.
+   * </pre>
+   *
+   * <code>string status_detail = 5;</code>
+   * @return The statusDetail.
+   */
+  java.lang.String getStatusDetail();
+  /**
+   * <pre>
+   * Human-readable status of the operation, if any.
+   * </pre>
+   *
+   * <code>string status_detail = 5;</code>
+   * @return The bytes for statusDetail.
+   */
+  com.google.protobuf.ByteString
+      getStatusDetailBytes();
+
+  /**
+   * <pre>
+   * Specifies if cancellation was requested for the operation.
+   * </pre>
+   *
+   * <code>bool cancel_requested = 6;</code>
+   * @return The cancelRequested.
+   */
+  boolean getCancelRequested();
+
+  /**
+   * <pre>
+   * API version.
+   * </pre>
+   *
+   * <code>string api_version = 7;</code>
+   * @return The apiVersion.
+   */
+  java.lang.String getApiVersion();
+  /**
+   * <pre>
+   * API version.
+   * </pre>
+   *
+   * <code>string api_version = 7;</code>
+   * @return The bytes for apiVersion.
+   */
+  com.google.protobuf.ByteString
+      getApiVersionBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersion.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersion.java
new file mode 100644
index 000000000000..a2e8be7587ce
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersion.java
@@ -0,0 +1,761 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * A runtime version that a Node can be configured with.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.RuntimeVersion}
+ */
+public final class RuntimeVersion extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.RuntimeVersion)
+    RuntimeVersionOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use RuntimeVersion.newBuilder() to construct.
+  private RuntimeVersion(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private RuntimeVersion() {
+    name_ = "";
+    version_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new RuntimeVersion();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private RuntimeVersion(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            version_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_RuntimeVersion_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_RuntimeVersion_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.RuntimeVersion.class, com.google.cloud.tpu.v2alpha1.RuntimeVersion.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      name_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int VERSION_FIELD_NUMBER = 2;
+  private volatile java.lang.Object version_;
+  /**
+   * <pre>
+   * The runtime version.
+   * </pre>
+   *
+   * <code>string version = 2;</code>
+   * @return The version.
+   */
+  @java.lang.Override
+  public java.lang.String getVersion() {
+    java.lang.Object ref = version_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      version_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The runtime version.
+   * </pre>
+   *
+   * <code>string version = 2;</code>
+   * @return The bytes for version.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getVersionBytes() {
+    java.lang.Object ref = version_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      version_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(version_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, version_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(version_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, version_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.RuntimeVersion)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.RuntimeVersion other = (com.google.cloud.tpu.v2alpha1.RuntimeVersion) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!getVersion()
+        .equals(other.getVersion())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (37 * hash) + VERSION_FIELD_NUMBER;
+    hash = (53 * hash) + getVersion().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.RuntimeVersion parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.RuntimeVersion parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.RuntimeVersion parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.RuntimeVersion parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.RuntimeVersion parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.RuntimeVersion parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.RuntimeVersion parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.RuntimeVersion parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.RuntimeVersion parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.RuntimeVersion parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.RuntimeVersion parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.RuntimeVersion parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.RuntimeVersion prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A runtime version that a Node can be configured with.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.RuntimeVersion}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.RuntimeVersion)
+      com.google.cloud.tpu.v2alpha1.RuntimeVersionOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_RuntimeVersion_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_RuntimeVersion_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.RuntimeVersion.class, com.google.cloud.tpu.v2alpha1.RuntimeVersion.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.RuntimeVersion.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      version_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_RuntimeVersion_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.RuntimeVersion getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.RuntimeVersion.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.RuntimeVersion build() {
+      com.google.cloud.tpu.v2alpha1.RuntimeVersion result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.RuntimeVersion buildPartial() {
+      com.google.cloud.tpu.v2alpha1.RuntimeVersion result = new com.google.cloud.tpu.v2alpha1.RuntimeVersion(this);
+      result.name_ = name_;
+      result.version_ = version_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.RuntimeVersion) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.RuntimeVersion)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.RuntimeVersion other) {
+      if (other == com.google.cloud.tpu.v2alpha1.RuntimeVersion.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      if (!other.getVersion().isEmpty()) {
+        version_ = other.version_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.RuntimeVersion parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.RuntimeVersion) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object name_ = "";
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return The name.
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object version_ = "";
+    /**
+     * <pre>
+     * The runtime version.
+     * </pre>
+     *
+     * <code>string version = 2;</code>
+     * @return The version.
+     */
+    public java.lang.String getVersion() {
+      java.lang.Object ref = version_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        version_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The runtime version.
+     * </pre>
+     *
+     * <code>string version = 2;</code>
+     * @return The bytes for version.
+     */
+    public com.google.protobuf.ByteString
+        getVersionBytes() {
+      java.lang.Object ref = version_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        version_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The runtime version.
+     * </pre>
+     *
+     * <code>string version = 2;</code>
+     * @param value The version to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVersion(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      version_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The runtime version.
+     * </pre>
+     *
+     * <code>string version = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearVersion() {
+      
+      version_ = getDefaultInstance().getVersion();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The runtime version.
+     * </pre>
+     *
+     * <code>string version = 2;</code>
+     * @param value The bytes for version to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVersionBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      version_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.RuntimeVersion)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.RuntimeVersion)
+  private static final com.google.cloud.tpu.v2alpha1.RuntimeVersion DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.RuntimeVersion();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.RuntimeVersion getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<RuntimeVersion>
+      PARSER = new com.google.protobuf.AbstractParser<RuntimeVersion>() {
+    @java.lang.Override
+    public RuntimeVersion parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new RuntimeVersion(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<RuntimeVersion> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<RuntimeVersion> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.RuntimeVersion getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersionName.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersionName.java
new file mode 100644
index 000000000000..fb06582e59f4
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersionName.java
@@ -0,0 +1,227 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+@Generated("by gapic-generator-java")
+public class RuntimeVersionName implements ResourceName {
+  private static final PathTemplate PROJECT_LOCATION_RUNTIME_VERSION =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/runtimeVersions/{runtime_version}");
+  private volatile Map<String, String> fieldValuesMap;
+  private final String project;
+  private final String location;
+  private final String runtimeVersion;
+
+  @Deprecated
+  protected RuntimeVersionName() {
+    project = null;
+    location = null;
+    runtimeVersion = null;
+  }
+
+  private RuntimeVersionName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    runtimeVersion = Preconditions.checkNotNull(builder.getRuntimeVersion());
+  }
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getRuntimeVersion() {
+    return runtimeVersion;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static RuntimeVersionName of(String project, String location, String runtimeVersion) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setRuntimeVersion(runtimeVersion)
+        .build();
+  }
+
+  public static String format(String project, String location, String runtimeVersion) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setRuntimeVersion(runtimeVersion)
+        .build()
+        .toString();
+  }
+
+  public static RuntimeVersionName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map<String, String> matchMap =
+        PROJECT_LOCATION_RUNTIME_VERSION.validatedMatch(
+            formattedString, "RuntimeVersionName.parse: formattedString not in valid format");
+    return of(matchMap.get("project"), matchMap.get("location"), matchMap.get("runtime_version"));
+  }
+
+  public static List<RuntimeVersionName> parseList(List<String> formattedStrings) {
+    List<RuntimeVersionName> list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List<String> toStringList(List<RuntimeVersionName> values) {
+    List<String> list = new ArrayList<>(values.size());
+    for (RuntimeVersionName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT_LOCATION_RUNTIME_VERSION.matches(formattedString);
+  }
+
+  @Override
+  public Map<String, String> getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder<String, String> fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          if (runtimeVersion != null) {
+            fieldMapBuilder.put("runtime_version", runtimeVersion);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PROJECT_LOCATION_RUNTIME_VERSION.instantiate(
+        "project", project, "location", location, "runtime_version", runtimeVersion);
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      RuntimeVersionName that = ((RuntimeVersionName) o);
+      return Objects.equals(this.project, that.project)
+          && Objects.equals(this.location, that.location)
+          && Objects.equals(this.runtimeVersion, that.runtimeVersion);
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    h *= 1000003;
+    h ^= Objects.hashCode(runtimeVersion);
+    return h;
+  }
+
+  /** Builder for projects/{project}/locations/{location}/runtimeVersions/{runtime_version}. */
+  public static class Builder {
+    private String project;
+    private String location;
+    private String runtimeVersion;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getRuntimeVersion() {
+      return runtimeVersion;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setRuntimeVersion(String runtimeVersion) {
+      this.runtimeVersion = runtimeVersion;
+      return this;
+    }
+
+    private Builder(RuntimeVersionName runtimeVersionName) {
+      this.project = runtimeVersionName.project;
+      this.location = runtimeVersionName.location;
+      this.runtimeVersion = runtimeVersionName.runtimeVersion;
+    }
+
+    public RuntimeVersionName build() {
+      return new RuntimeVersionName(this);
+    }
+  }
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersionOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersionOrBuilder.java
new file mode 100644
index 000000000000..61ba8883f9e3
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/RuntimeVersionOrBuilder.java
@@ -0,0 +1,49 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface RuntimeVersionOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.RuntimeVersion)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+
+  /**
+   * <pre>
+   * The runtime version.
+   * </pre>
+   *
+   * <code>string version = 2;</code>
+   * @return The version.
+   */
+  java.lang.String getVersion();
+  /**
+   * <pre>
+   * The runtime version.
+   * </pre>
+   *
+   * <code>string version = 2;</code>
+   * @return The bytes for version.
+   */
+  com.google.protobuf.ByteString
+      getVersionBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfig.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfig.java
new file mode 100644
index 000000000000..7f6ce8504997
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfig.java
@@ -0,0 +1,591 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Sets the scheduling options for this node.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.SchedulingConfig}
+ */
+public final class SchedulingConfig extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.SchedulingConfig)
+    SchedulingConfigOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use SchedulingConfig.newBuilder() to construct.
+  private SchedulingConfig(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private SchedulingConfig() {
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new SchedulingConfig();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private SchedulingConfig(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
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+        switch (tag) {
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+            break;
+          case 8: {
+
+            preemptible_ = input.readBool();
+            break;
+          }
+          case 16: {
+
+            reserved_ = input.readBool();
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_SchedulingConfig_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_SchedulingConfig_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.SchedulingConfig.class, com.google.cloud.tpu.v2alpha1.SchedulingConfig.Builder.class);
+  }
+
+  public static final int PREEMPTIBLE_FIELD_NUMBER = 1;
+  private boolean preemptible_;
+  /**
+   * <pre>
+   * Defines whether the node is preemptible.
+   * </pre>
+   *
+   * <code>bool preemptible = 1;</code>
+   * @return The preemptible.
+   */
+  @java.lang.Override
+  public boolean getPreemptible() {
+    return preemptible_;
+  }
+
+  public static final int RESERVED_FIELD_NUMBER = 2;
+  private boolean reserved_;
+  /**
+   * <pre>
+   * Whether the node is created under a reservation.
+   * </pre>
+   *
+   * <code>bool reserved = 2;</code>
+   * @return The reserved.
+   */
+  @java.lang.Override
+  public boolean getReserved() {
+    return reserved_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
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+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
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+    if (preemptible_ != false) {
+      output.writeBool(1, preemptible_);
+    }
+    if (reserved_ != false) {
+      output.writeBool(2, reserved_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
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+        .computeBoolSize(1, preemptible_);
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+        .computeBoolSize(2, reserved_);
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+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.SchedulingConfig)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.SchedulingConfig other = (com.google.cloud.tpu.v2alpha1.SchedulingConfig) obj;
+
+    if (getPreemptible()
+        != other.getPreemptible()) return false;
+    if (getReserved()
+        != other.getReserved()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + PREEMPTIBLE_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
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+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
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+    memoizedHashCode = hash;
+    return hash;
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+  public static com.google.cloud.tpu.v2alpha1.SchedulingConfig parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.SchedulingConfig parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.SchedulingConfig parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.SchedulingConfig parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.SchedulingConfig parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.SchedulingConfig parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.SchedulingConfig parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.SchedulingConfig parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.SchedulingConfig parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.SchedulingConfig parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.SchedulingConfig parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.SchedulingConfig parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.SchedulingConfig prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Sets the scheduling options for this node.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.SchedulingConfig}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.SchedulingConfig)
+      com.google.cloud.tpu.v2alpha1.SchedulingConfigOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_SchedulingConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_SchedulingConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
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+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.SchedulingConfig.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
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+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      preemptible_ = false;
+
+      reserved_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_SchedulingConfig_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.SchedulingConfig getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.SchedulingConfig.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.SchedulingConfig build() {
+      com.google.cloud.tpu.v2alpha1.SchedulingConfig result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.SchedulingConfig buildPartial() {
+      com.google.cloud.tpu.v2alpha1.SchedulingConfig result = new com.google.cloud.tpu.v2alpha1.SchedulingConfig(this);
+      result.preemptible_ = preemptible_;
+      result.reserved_ = reserved_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    public Builder clearField(
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+    public Builder clearOneof(
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+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
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+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.SchedulingConfig) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.SchedulingConfig)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.SchedulingConfig other) {
+      if (other == com.google.cloud.tpu.v2alpha1.SchedulingConfig.getDefaultInstance()) return this;
+      if (other.getPreemptible() != false) {
+        setPreemptible(other.getPreemptible());
+      }
+      if (other.getReserved() != false) {
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+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.SchedulingConfig parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.SchedulingConfig) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
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+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private boolean preemptible_ ;
+    /**
+     * <pre>
+     * Defines whether the node is preemptible.
+     * </pre>
+     *
+     * <code>bool preemptible = 1;</code>
+     * @return The preemptible.
+     */
+    @java.lang.Override
+    public boolean getPreemptible() {
+      return preemptible_;
+    }
+    /**
+     * <pre>
+     * Defines whether the node is preemptible.
+     * </pre>
+     *
+     * <code>bool preemptible = 1;</code>
+     * @param value The preemptible to set.
+     * @return This builder for chaining.
+     */
+    public Builder setPreemptible(boolean value) {
+      
+      preemptible_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Defines whether the node is preemptible.
+     * </pre>
+     *
+     * <code>bool preemptible = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearPreemptible() {
+      
+      preemptible_ = false;
+      onChanged();
+      return this;
+    }
+
+    private boolean reserved_ ;
+    /**
+     * <pre>
+     * Whether the node is created under a reservation.
+     * </pre>
+     *
+     * <code>bool reserved = 2;</code>
+     * @return The reserved.
+     */
+    @java.lang.Override
+    public boolean getReserved() {
+      return reserved_;
+    }
+    /**
+     * <pre>
+     * Whether the node is created under a reservation.
+     * </pre>
+     *
+     * <code>bool reserved = 2;</code>
+     * @param value The reserved to set.
+     * @return This builder for chaining.
+     */
+    public Builder setReserved(boolean value) {
+      
+      reserved_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Whether the node is created under a reservation.
+     * </pre>
+     *
+     * <code>bool reserved = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearReserved() {
+      
+      reserved_ = false;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.SchedulingConfig)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.SchedulingConfig)
+  private static final com.google.cloud.tpu.v2alpha1.SchedulingConfig DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.SchedulingConfig();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.SchedulingConfig getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<SchedulingConfig>
+      PARSER = new com.google.protobuf.AbstractParser<SchedulingConfig>() {
+    @java.lang.Override
+    public SchedulingConfig parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new SchedulingConfig(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<SchedulingConfig> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<SchedulingConfig> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.SchedulingConfig getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfigOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfigOrBuilder.java
new file mode 100644
index 000000000000..5e8a02cbe3b3
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SchedulingConfigOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface SchedulingConfigOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.SchedulingConfig)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Defines whether the node is preemptible.
+   * </pre>
+   *
+   * <code>bool preemptible = 1;</code>
+   * @return The preemptible.
+   */
+  boolean getPreemptible();
+
+  /**
+   * <pre>
+   * Whether the node is created under a reservation.
+   * </pre>
+   *
+   * <code>bool reserved = 2;</code>
+   * @return The reserved.
+   */
+  boolean getReserved();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccount.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccount.java
new file mode 100644
index 000000000000..18380457802e
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccount.java
@@ -0,0 +1,862 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * A service account.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.ServiceAccount}
+ */
+public final class ServiceAccount extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.ServiceAccount)
+    ServiceAccountOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ServiceAccount.newBuilder() to construct.
+  private ServiceAccount(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ServiceAccount() {
+    email_ = "";
+    scope_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ServiceAccount();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ServiceAccount(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            email_ = s;
+            break;
+          }
+          case 18: {
+            java.lang.String s = input.readStringRequireUtf8();
+            if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+              scope_ = new com.google.protobuf.LazyStringArrayList();
+              mutable_bitField0_ |= 0x00000001;
+            }
+            scope_.add(s);
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      if (((mutable_bitField0_ & 0x00000001) != 0)) {
+        scope_ = scope_.getUnmodifiableView();
+      }
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ServiceAccount_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ServiceAccount_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.ServiceAccount.class, com.google.cloud.tpu.v2alpha1.ServiceAccount.Builder.class);
+  }
+
+  public static final int EMAIL_FIELD_NUMBER = 1;
+  private volatile java.lang.Object email_;
+  /**
+   * <pre>
+   * Email address of the service account. If empty, default Compute service
+   * account will be used.
+   * </pre>
+   *
+   * <code>string email = 1;</code>
+   * @return The email.
+   */
+  @java.lang.Override
+  public java.lang.String getEmail() {
+    java.lang.Object ref = email_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      email_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Email address of the service account. If empty, default Compute service
+   * account will be used.
+   * </pre>
+   *
+   * <code>string email = 1;</code>
+   * @return The bytes for email.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getEmailBytes() {
+    java.lang.Object ref = email_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      email_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int SCOPE_FIELD_NUMBER = 2;
+  private com.google.protobuf.LazyStringList scope_;
+  /**
+   * <pre>
+   * The list of scopes to be made available for this service account. If empty,
+   * access to all Cloud APIs will be allowed.
+   * </pre>
+   *
+   * <code>repeated string scope = 2;</code>
+   * @return A list containing the scope.
+   */
+  public com.google.protobuf.ProtocolStringList
+      getScopeList() {
+    return scope_;
+  }
+  /**
+   * <pre>
+   * The list of scopes to be made available for this service account. If empty,
+   * access to all Cloud APIs will be allowed.
+   * </pre>
+   *
+   * <code>repeated string scope = 2;</code>
+   * @return The count of scope.
+   */
+  public int getScopeCount() {
+    return scope_.size();
+  }
+  /**
+   * <pre>
+   * The list of scopes to be made available for this service account. If empty,
+   * access to all Cloud APIs will be allowed.
+   * </pre>
+   *
+   * <code>repeated string scope = 2;</code>
+   * @param index The index of the element to return.
+   * @return The scope at the given index.
+   */
+  public java.lang.String getScope(int index) {
+    return scope_.get(index);
+  }
+  /**
+   * <pre>
+   * The list of scopes to be made available for this service account. If empty,
+   * access to all Cloud APIs will be allowed.
+   * </pre>
+   *
+   * <code>repeated string scope = 2;</code>
+   * @param index The index of the value to return.
+   * @return The bytes of the scope at the given index.
+   */
+  public com.google.protobuf.ByteString
+      getScopeBytes(int index) {
+    return scope_.getByteString(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(email_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, email_);
+    }
+    for (int i = 0; i < scope_.size(); i++) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, scope_.getRaw(i));
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(email_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, email_);
+    }
+    {
+      int dataSize = 0;
+      for (int i = 0; i < scope_.size(); i++) {
+        dataSize += computeStringSizeNoTag(scope_.getRaw(i));
+      }
+      size += dataSize;
+      size += 1 * getScopeList().size();
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.ServiceAccount)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.ServiceAccount other = (com.google.cloud.tpu.v2alpha1.ServiceAccount) obj;
+
+    if (!getEmail()
+        .equals(other.getEmail())) return false;
+    if (!getScopeList()
+        .equals(other.getScopeList())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + EMAIL_FIELD_NUMBER;
+    hash = (53 * hash) + getEmail().hashCode();
+    if (getScopeCount() > 0) {
+      hash = (37 * hash) + SCOPE_FIELD_NUMBER;
+      hash = (53 * hash) + getScopeList().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.ServiceAccount parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceAccount parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceAccount parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceAccount parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceAccount parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceAccount parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceAccount parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceAccount parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceAccount parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceAccount parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceAccount parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceAccount parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.ServiceAccount prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A service account.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.ServiceAccount}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.ServiceAccount)
+      com.google.cloud.tpu.v2alpha1.ServiceAccountOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ServiceAccount_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ServiceAccount_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.ServiceAccount.class, com.google.cloud.tpu.v2alpha1.ServiceAccount.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.ServiceAccount.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      email_ = "";
+
+      scope_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000001);
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ServiceAccount_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ServiceAccount getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.ServiceAccount.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ServiceAccount build() {
+      com.google.cloud.tpu.v2alpha1.ServiceAccount result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ServiceAccount buildPartial() {
+      com.google.cloud.tpu.v2alpha1.ServiceAccount result = new com.google.cloud.tpu.v2alpha1.ServiceAccount(this);
+      int from_bitField0_ = bitField0_;
+      result.email_ = email_;
+      if (((bitField0_ & 0x00000001) != 0)) {
+        scope_ = scope_.getUnmodifiableView();
+        bitField0_ = (bitField0_ & ~0x00000001);
+      }
+      result.scope_ = scope_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.ServiceAccount) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.ServiceAccount)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.ServiceAccount other) {
+      if (other == com.google.cloud.tpu.v2alpha1.ServiceAccount.getDefaultInstance()) return this;
+      if (!other.getEmail().isEmpty()) {
+        email_ = other.email_;
+        onChanged();
+      }
+      if (!other.scope_.isEmpty()) {
+        if (scope_.isEmpty()) {
+          scope_ = other.scope_;
+          bitField0_ = (bitField0_ & ~0x00000001);
+        } else {
+          ensureScopeIsMutable();
+          scope_.addAll(other.scope_);
+        }
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.ServiceAccount parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.ServiceAccount) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+    private int bitField0_;
+
+    private java.lang.Object email_ = "";
+    /**
+     * <pre>
+     * Email address of the service account. If empty, default Compute service
+     * account will be used.
+     * </pre>
+     *
+     * <code>string email = 1;</code>
+     * @return The email.
+     */
+    public java.lang.String getEmail() {
+      java.lang.Object ref = email_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        email_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Email address of the service account. If empty, default Compute service
+     * account will be used.
+     * </pre>
+     *
+     * <code>string email = 1;</code>
+     * @return The bytes for email.
+     */
+    public com.google.protobuf.ByteString
+        getEmailBytes() {
+      java.lang.Object ref = email_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        email_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Email address of the service account. If empty, default Compute service
+     * account will be used.
+     * </pre>
+     *
+     * <code>string email = 1;</code>
+     * @param value The email to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEmail(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      email_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Email address of the service account. If empty, default Compute service
+     * account will be used.
+     * </pre>
+     *
+     * <code>string email = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearEmail() {
+      
+      email_ = getDefaultInstance().getEmail();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Email address of the service account. If empty, default Compute service
+     * account will be used.
+     * </pre>
+     *
+     * <code>string email = 1;</code>
+     * @param value The bytes for email to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEmailBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      email_ = value;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.LazyStringList scope_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+    private void ensureScopeIsMutable() {
+      if (!((bitField0_ & 0x00000001) != 0)) {
+        scope_ = new com.google.protobuf.LazyStringArrayList(scope_);
+        bitField0_ |= 0x00000001;
+       }
+    }
+    /**
+     * <pre>
+     * The list of scopes to be made available for this service account. If empty,
+     * access to all Cloud APIs will be allowed.
+     * </pre>
+     *
+     * <code>repeated string scope = 2;</code>
+     * @return A list containing the scope.
+     */
+    public com.google.protobuf.ProtocolStringList
+        getScopeList() {
+      return scope_.getUnmodifiableView();
+    }
+    /**
+     * <pre>
+     * The list of scopes to be made available for this service account. If empty,
+     * access to all Cloud APIs will be allowed.
+     * </pre>
+     *
+     * <code>repeated string scope = 2;</code>
+     * @return The count of scope.
+     */
+    public int getScopeCount() {
+      return scope_.size();
+    }
+    /**
+     * <pre>
+     * The list of scopes to be made available for this service account. If empty,
+     * access to all Cloud APIs will be allowed.
+     * </pre>
+     *
+     * <code>repeated string scope = 2;</code>
+     * @param index The index of the element to return.
+     * @return The scope at the given index.
+     */
+    public java.lang.String getScope(int index) {
+      return scope_.get(index);
+    }
+    /**
+     * <pre>
+     * The list of scopes to be made available for this service account. If empty,
+     * access to all Cloud APIs will be allowed.
+     * </pre>
+     *
+     * <code>repeated string scope = 2;</code>
+     * @param index The index of the value to return.
+     * @return The bytes of the scope at the given index.
+     */
+    public com.google.protobuf.ByteString
+        getScopeBytes(int index) {
+      return scope_.getByteString(index);
+    }
+    /**
+     * <pre>
+     * The list of scopes to be made available for this service account. If empty,
+     * access to all Cloud APIs will be allowed.
+     * </pre>
+     *
+     * <code>repeated string scope = 2;</code>
+     * @param index The index to set the value at.
+     * @param value The scope to set.
+     * @return This builder for chaining.
+     */
+    public Builder setScope(
+        int index, java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureScopeIsMutable();
+      scope_.set(index, value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The list of scopes to be made available for this service account. If empty,
+     * access to all Cloud APIs will be allowed.
+     * </pre>
+     *
+     * <code>repeated string scope = 2;</code>
+     * @param value The scope to add.
+     * @return This builder for chaining.
+     */
+    public Builder addScope(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  ensureScopeIsMutable();
+      scope_.add(value);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The list of scopes to be made available for this service account. If empty,
+     * access to all Cloud APIs will be allowed.
+     * </pre>
+     *
+     * <code>repeated string scope = 2;</code>
+     * @param values The scope to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllScope(
+        java.lang.Iterable<java.lang.String> values) {
+      ensureScopeIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(
+          values, scope_);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The list of scopes to be made available for this service account. If empty,
+     * access to all Cloud APIs will be allowed.
+     * </pre>
+     *
+     * <code>repeated string scope = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearScope() {
+      scope_ = com.google.protobuf.LazyStringArrayList.EMPTY;
+      bitField0_ = (bitField0_ & ~0x00000001);
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The list of scopes to be made available for this service account. If empty,
+     * access to all Cloud APIs will be allowed.
+     * </pre>
+     *
+     * <code>repeated string scope = 2;</code>
+     * @param value The bytes of the scope to add.
+     * @return This builder for chaining.
+     */
+    public Builder addScopeBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      ensureScopeIsMutable();
+      scope_.add(value);
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.ServiceAccount)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.ServiceAccount)
+  private static final com.google.cloud.tpu.v2alpha1.ServiceAccount DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.ServiceAccount();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.ServiceAccount getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ServiceAccount>
+      PARSER = new com.google.protobuf.AbstractParser<ServiceAccount>() {
+    @java.lang.Override
+    public ServiceAccount parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ServiceAccount(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ServiceAccount> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ServiceAccount> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ServiceAccount getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccountOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccountOrBuilder.java
new file mode 100644
index 000000000000..b066871c5cad
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceAccountOrBuilder.java
@@ -0,0 +1,76 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface ServiceAccountOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.ServiceAccount)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Email address of the service account. If empty, default Compute service
+   * account will be used.
+   * </pre>
+   *
+   * <code>string email = 1;</code>
+   * @return The email.
+   */
+  java.lang.String getEmail();
+  /**
+   * <pre>
+   * Email address of the service account. If empty, default Compute service
+   * account will be used.
+   * </pre>
+   *
+   * <code>string email = 1;</code>
+   * @return The bytes for email.
+   */
+  com.google.protobuf.ByteString
+      getEmailBytes();
+
+  /**
+   * <pre>
+   * The list of scopes to be made available for this service account. If empty,
+   * access to all Cloud APIs will be allowed.
+   * </pre>
+   *
+   * <code>repeated string scope = 2;</code>
+   * @return A list containing the scope.
+   */
+  java.util.List<java.lang.String>
+      getScopeList();
+  /**
+   * <pre>
+   * The list of scopes to be made available for this service account. If empty,
+   * access to all Cloud APIs will be allowed.
+   * </pre>
+   *
+   * <code>repeated string scope = 2;</code>
+   * @return The count of scope.
+   */
+  int getScopeCount();
+  /**
+   * <pre>
+   * The list of scopes to be made available for this service account. If empty,
+   * access to all Cloud APIs will be allowed.
+   * </pre>
+   *
+   * <code>repeated string scope = 2;</code>
+   * @param index The index of the element to return.
+   * @return The scope at the given index.
+   */
+  java.lang.String getScope(int index);
+  /**
+   * <pre>
+   * The list of scopes to be made available for this service account. If empty,
+   * access to all Cloud APIs will be allowed.
+   * </pre>
+   *
+   * <code>repeated string scope = 2;</code>
+   * @param index The index of the value to return.
+   * @return The bytes of the scope at the given index.
+   */
+  com.google.protobuf.ByteString
+      getScopeBytes(int index);
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentity.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentity.java
new file mode 100644
index 000000000000..bc9d9edf80f2
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentity.java
@@ -0,0 +1,595 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * The per-product per-project service identity for Cloud TPU service.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.ServiceIdentity}
+ */
+public final class ServiceIdentity extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.ServiceIdentity)
+    ServiceIdentityOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ServiceIdentity.newBuilder() to construct.
+  private ServiceIdentity(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ServiceIdentity() {
+    email_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ServiceIdentity();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ServiceIdentity(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            email_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ServiceIdentity_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ServiceIdentity_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.ServiceIdentity.class, com.google.cloud.tpu.v2alpha1.ServiceIdentity.Builder.class);
+  }
+
+  public static final int EMAIL_FIELD_NUMBER = 1;
+  private volatile java.lang.Object email_;
+  /**
+   * <pre>
+   * The email address of the service identity.
+   * </pre>
+   *
+   * <code>string email = 1;</code>
+   * @return The email.
+   */
+  @java.lang.Override
+  public java.lang.String getEmail() {
+    java.lang.Object ref = email_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      email_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * The email address of the service identity.
+   * </pre>
+   *
+   * <code>string email = 1;</code>
+   * @return The bytes for email.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getEmailBytes() {
+    java.lang.Object ref = email_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      email_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(email_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, email_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(email_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, email_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.ServiceIdentity)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.ServiceIdentity other = (com.google.cloud.tpu.v2alpha1.ServiceIdentity) obj;
+
+    if (!getEmail()
+        .equals(other.getEmail())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + EMAIL_FIELD_NUMBER;
+    hash = (53 * hash) + getEmail().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.ServiceIdentity parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceIdentity parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceIdentity parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceIdentity parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceIdentity parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceIdentity parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceIdentity parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceIdentity parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceIdentity parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceIdentity parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceIdentity parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ServiceIdentity parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.ServiceIdentity prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * The per-product per-project service identity for Cloud TPU service.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.ServiceIdentity}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.ServiceIdentity)
+      com.google.cloud.tpu.v2alpha1.ServiceIdentityOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ServiceIdentity_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ServiceIdentity_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.ServiceIdentity.class, com.google.cloud.tpu.v2alpha1.ServiceIdentity.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.ServiceIdentity.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      email_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ServiceIdentity_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ServiceIdentity getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.ServiceIdentity.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ServiceIdentity build() {
+      com.google.cloud.tpu.v2alpha1.ServiceIdentity result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ServiceIdentity buildPartial() {
+      com.google.cloud.tpu.v2alpha1.ServiceIdentity result = new com.google.cloud.tpu.v2alpha1.ServiceIdentity(this);
+      result.email_ = email_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.ServiceIdentity) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.ServiceIdentity)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.ServiceIdentity other) {
+      if (other == com.google.cloud.tpu.v2alpha1.ServiceIdentity.getDefaultInstance()) return this;
+      if (!other.getEmail().isEmpty()) {
+        email_ = other.email_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.ServiceIdentity parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.ServiceIdentity) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private java.lang.Object email_ = "";
+    /**
+     * <pre>
+     * The email address of the service identity.
+     * </pre>
+     *
+     * <code>string email = 1;</code>
+     * @return The email.
+     */
+    public java.lang.String getEmail() {
+      java.lang.Object ref = email_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        email_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The email address of the service identity.
+     * </pre>
+     *
+     * <code>string email = 1;</code>
+     * @return The bytes for email.
+     */
+    public com.google.protobuf.ByteString
+        getEmailBytes() {
+      java.lang.Object ref = email_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        email_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The email address of the service identity.
+     * </pre>
+     *
+     * <code>string email = 1;</code>
+     * @param value The email to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEmail(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      email_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The email address of the service identity.
+     * </pre>
+     *
+     * <code>string email = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearEmail() {
+      
+      email_ = getDefaultInstance().getEmail();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The email address of the service identity.
+     * </pre>
+     *
+     * <code>string email = 1;</code>
+     * @param value The bytes for email to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEmailBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      email_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.ServiceIdentity)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.ServiceIdentity)
+  private static final com.google.cloud.tpu.v2alpha1.ServiceIdentity DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.ServiceIdentity();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.ServiceIdentity getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ServiceIdentity>
+      PARSER = new com.google.protobuf.AbstractParser<ServiceIdentity>() {
+    @java.lang.Override
+    public ServiceIdentity parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ServiceIdentity(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ServiceIdentity> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ServiceIdentity> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ServiceIdentity getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentityOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentityOrBuilder.java
new file mode 100644
index 000000000000..12b3c9f7dcd5
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ServiceIdentityOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface ServiceIdentityOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.ServiceIdentity)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The email address of the service identity.
+   * </pre>
+   *
+   * <code>string email = 1;</code>
+   * @return The email.
+   */
+  java.lang.String getEmail();
+  /**
+   * <pre>
+   * The email address of the service identity.
+   * </pre>
+   *
+   * <code>string email = 1;</code>
+   * @return The bytes for email.
+   */
+  com.google.protobuf.ByteString
+      getEmailBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfig.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfig.java
new file mode 100644
index 000000000000..01eceeac5fd6
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfig.java
@@ -0,0 +1,510 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * A set of Shielded Instance options.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.ShieldedInstanceConfig}
+ */
+public final class ShieldedInstanceConfig extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.ShieldedInstanceConfig)
+    ShieldedInstanceConfigOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use ShieldedInstanceConfig.newBuilder() to construct.
+  private ShieldedInstanceConfig(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private ShieldedInstanceConfig() {
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new ShieldedInstanceConfig();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private ShieldedInstanceConfig(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 8: {
+
+            enableSecureBoot_ = input.readBool();
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ShieldedInstanceConfig_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ShieldedInstanceConfig_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.class, com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.Builder.class);
+  }
+
+  public static final int ENABLE_SECURE_BOOT_FIELD_NUMBER = 1;
+  private boolean enableSecureBoot_;
+  /**
+   * <pre>
+   * Defines whether the instance has Secure Boot enabled.
+   * </pre>
+   *
+   * <code>bool enable_secure_boot = 1;</code>
+   * @return The enableSecureBoot.
+   */
+  @java.lang.Override
+  public boolean getEnableSecureBoot() {
+    return enableSecureBoot_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (enableSecureBoot_ != false) {
+      output.writeBool(1, enableSecureBoot_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (enableSecureBoot_ != false) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeBoolSize(1, enableSecureBoot_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig other = (com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig) obj;
+
+    if (getEnableSecureBoot()
+        != other.getEnableSecureBoot()) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + ENABLE_SECURE_BOOT_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(
+        getEnableSecureBoot());
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A set of Shielded Instance options.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.ShieldedInstanceConfig}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.ShieldedInstanceConfig)
+      com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfigOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ShieldedInstanceConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ShieldedInstanceConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.class, com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      enableSecureBoot_ = false;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_ShieldedInstanceConfig_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig build() {
+      com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig buildPartial() {
+      com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig result = new com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig(this);
+      result.enableSecureBoot_ = enableSecureBoot_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig other) {
+      if (other == com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig.getDefaultInstance()) return this;
+      if (other.getEnableSecureBoot() != false) {
+        setEnableSecureBoot(other.getEnableSecureBoot());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private boolean enableSecureBoot_ ;
+    /**
+     * <pre>
+     * Defines whether the instance has Secure Boot enabled.
+     * </pre>
+     *
+     * <code>bool enable_secure_boot = 1;</code>
+     * @return The enableSecureBoot.
+     */
+    @java.lang.Override
+    public boolean getEnableSecureBoot() {
+      return enableSecureBoot_;
+    }
+    /**
+     * <pre>
+     * Defines whether the instance has Secure Boot enabled.
+     * </pre>
+     *
+     * <code>bool enable_secure_boot = 1;</code>
+     * @param value The enableSecureBoot to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnableSecureBoot(boolean value) {
+      
+      enableSecureBoot_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Defines whether the instance has Secure Boot enabled.
+     * </pre>
+     *
+     * <code>bool enable_secure_boot = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearEnableSecureBoot() {
+      
+      enableSecureBoot_ = false;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.ShieldedInstanceConfig)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.ShieldedInstanceConfig)
+  private static final com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<ShieldedInstanceConfig>
+      PARSER = new com.google.protobuf.AbstractParser<ShieldedInstanceConfig>() {
+    @java.lang.Override
+    public ShieldedInstanceConfig parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new ShieldedInstanceConfig(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<ShieldedInstanceConfig> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<ShieldedInstanceConfig> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.ShieldedInstanceConfig getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfigOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfigOrBuilder.java
new file mode 100644
index 000000000000..a720bd197b91
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ShieldedInstanceConfigOrBuilder.java
@@ -0,0 +1,19 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface ShieldedInstanceConfigOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.ShieldedInstanceConfig)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Defines whether the instance has Secure Boot enabled.
+   * </pre>
+   *
+   * <code>bool enable_secure_boot = 1;</code>
+   * @return The enableSecureBoot.
+   */
+  boolean getEnableSecureBoot();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequest.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequest.java
new file mode 100644
index 000000000000..cc4b34347ec8
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequest.java
@@ -0,0 +1,595 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Request for [StartNode][google.cloud.tpu.v2alpha1.Tpu.StartNode].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.StartNodeRequest}
+ */
+public final class StartNodeRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.StartNodeRequest)
+    StartNodeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use StartNodeRequest.newBuilder() to construct.
+  private StartNodeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private StartNodeRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new StartNodeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private StartNodeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
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+      while (!done) {
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+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            name_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_StartNodeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_StartNodeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.StartNodeRequest.class, com.google.cloud.tpu.v2alpha1.StartNodeRequest.Builder.class);
+  }
+
+  public static final int NAME_FIELD_NUMBER = 1;
+  private volatile java.lang.Object name_;
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  @java.lang.Override
+  public java.lang.String getName() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
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+      java.lang.String s = bs.toStringUtf8();
+      name_ = s;
+      return s;
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+  }
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getNameBytes() {
+    java.lang.Object ref = name_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
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+      name_ = b;
+      return b;
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+      return (com.google.protobuf.ByteString) ref;
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+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
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+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.StartNodeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.StartNodeRequest other = (com.google.cloud.tpu.v2alpha1.StartNodeRequest) obj;
+
+    if (!getName()
+        .equals(other.getName())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + NAME_FIELD_NUMBER;
+    hash = (53 * hash) + getName().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.StartNodeRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.StartNodeRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.StartNodeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.StartNodeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.StartNodeRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.StartNodeRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.StartNodeRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.StartNodeRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.StartNodeRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.StartNodeRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.StartNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.StartNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.StartNodeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for [StartNode][google.cloud.tpu.v2alpha1.Tpu.StartNode].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.StartNodeRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.StartNodeRequest)
+      com.google.cloud.tpu.v2alpha1.StartNodeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_StartNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_StartNodeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.StartNodeRequest.class, com.google.cloud.tpu.v2alpha1.StartNodeRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.StartNodeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      name_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_StartNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.StartNodeRequest getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.StartNodeRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.StartNodeRequest build() {
+      com.google.cloud.tpu.v2alpha1.StartNodeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.StartNodeRequest buildPartial() {
+      com.google.cloud.tpu.v2alpha1.StartNodeRequest result = new com.google.cloud.tpu.v2alpha1.StartNodeRequest(this);
+      result.name_ = name_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.StartNodeRequest) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.StartNodeRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.StartNodeRequest other) {
+      if (other == com.google.cloud.tpu.v2alpha1.StartNodeRequest.getDefaultInstance()) return this;
+      if (!other.getName().isEmpty()) {
+        name_ = other.name_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
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+
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+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.StartNodeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.StartNodeRequest) e.getUnfinishedMessage();
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+      return this;
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+
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+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
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+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return The bytes for name.
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+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
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+     */
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+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
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+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
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+    @java.lang.Override
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+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.StartNodeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.StartNodeRequest)
+  private static final com.google.cloud.tpu.v2alpha1.StartNodeRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.StartNodeRequest();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.StartNodeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<StartNodeRequest>
+      PARSER = new com.google.protobuf.AbstractParser<StartNodeRequest>() {
+    @java.lang.Override
+    public StartNodeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new StartNodeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<StartNodeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<StartNodeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.StartNodeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequestOrBuilder.java
new file mode 100644
index 000000000000..7563815e5851
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StartNodeRequestOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface StartNodeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.StartNodeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequest.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequest.java
new file mode 100644
index 000000000000..f921d9152105
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequest.java
@@ -0,0 +1,595 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Request for [StopNode][google.cloud.tpu.v2alpha1.Tpu.StopNode].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.StopNodeRequest}
+ */
+public final class StopNodeRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.StopNodeRequest)
+    StopNodeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use StopNodeRequest.newBuilder() to construct.
+  private StopNodeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private StopNodeRequest() {
+    name_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
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+
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+  public final com.google.protobuf.UnknownFieldSet
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
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+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
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+    } finally {
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+      makeExtensionsImmutable();
+    }
+  }
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+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_StopNodeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+    return com.google.protobuf.GeneratedMessageV3
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
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+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
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+  public static com.google.cloud.tpu.v2alpha1.StopNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.StopNodeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
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+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
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+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for [StopNode][google.cloud.tpu.v2alpha1.Tpu.StopNode].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.StopNodeRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.StopNodeRequest)
+      com.google.cloud.tpu.v2alpha1.StopNodeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_StopNodeRequest_descriptor;
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+    @java.lang.Override
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+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        name_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return The bytes for name.
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setName(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearName() {
+      
+      name_ = getDefaultInstance().getName();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * The resource name.
+     * </pre>
+     *
+     * <code>string name = 1;</code>
+     * @param value The bytes for name to set.
+     * @return This builder for chaining.
+     */
+    public Builder setNameBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      name_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.StopNodeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.StopNodeRequest)
+  private static final com.google.cloud.tpu.v2alpha1.StopNodeRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.StopNodeRequest();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.StopNodeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<StopNodeRequest>
+      PARSER = new com.google.protobuf.AbstractParser<StopNodeRequest>() {
+    @java.lang.Override
+    public StopNodeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new StopNodeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<StopNodeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<StopNodeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.StopNodeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequestOrBuilder.java
new file mode 100644
index 000000000000..ffe3d83bb37f
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/StopNodeRequestOrBuilder.java
@@ -0,0 +1,29 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface StopNodeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.StopNodeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The name.
+   */
+  java.lang.String getName();
+  /**
+   * <pre>
+   * The resource name.
+   * </pre>
+   *
+   * <code>string name = 1;</code>
+   * @return The bytes for name.
+   */
+  com.google.protobuf.ByteString
+      getNameBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Symptom.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Symptom.java
new file mode 100644
index 000000000000..b20b6aab729d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/Symptom.java
@@ -0,0 +1,1337 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * A Symptom instance.
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.Symptom}
+ */
+public final class Symptom extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.Symptom)
+    SymptomOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use Symptom.newBuilder() to construct.
+  private Symptom(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private Symptom() {
+    symptomType_ = 0;
+    details_ = "";
+    workerId_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new Symptom();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private Symptom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            com.google.protobuf.Timestamp.Builder subBuilder = null;
+            if (createTime_ != null) {
+              subBuilder = createTime_.toBuilder();
+            }
+            createTime_ = input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(createTime_);
+              createTime_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          case 16: {
+            int rawValue = input.readEnum();
+
+            symptomType_ = rawValue;
+            break;
+          }
+          case 26: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            details_ = s;
+            break;
+          }
+          case 34: {
+            java.lang.String s = input.readStringRequireUtf8();
+
+            workerId_ = s;
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_Symptom_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_Symptom_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.Symptom.class, com.google.cloud.tpu.v2alpha1.Symptom.Builder.class);
+  }
+
+  /**
+   * <pre>
+   * SymptomType represents the different types of Symptoms that a TPU can be
+   * at.
+   * </pre>
+   *
+   * Protobuf enum {@code google.cloud.tpu.v2alpha1.Symptom.SymptomType}
+   */
+  public enum SymptomType
+      implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     * <pre>
+     * Unspecified symptom.
+     * </pre>
+     *
+     * <code>SYMPTOM_TYPE_UNSPECIFIED = 0;</code>
+     */
+    SYMPTOM_TYPE_UNSPECIFIED(0),
+    /**
+     * <pre>
+     * TPU VM memory is low.
+     * </pre>
+     *
+     * <code>LOW_MEMORY = 1;</code>
+     */
+    LOW_MEMORY(1),
+    /**
+     * <pre>
+     * TPU runtime is out of memory.
+     * </pre>
+     *
+     * <code>OUT_OF_MEMORY = 2;</code>
+     */
+    OUT_OF_MEMORY(2),
+    /**
+     * <pre>
+     * TPU runtime execution has timed out.
+     * </pre>
+     *
+     * <code>EXECUTE_TIMED_OUT = 3;</code>
+     */
+    EXECUTE_TIMED_OUT(3),
+    /**
+     * <pre>
+     * TPU runtime fails to construct a mesh that recognizes each TPU device's
+     * neighbors.
+     * </pre>
+     *
+     * <code>MESH_BUILD_FAIL = 4;</code>
+     */
+    MESH_BUILD_FAIL(4),
+    /**
+     * <pre>
+     * TPU HBM is out of memory.
+     * </pre>
+     *
+     * <code>HBM_OUT_OF_MEMORY = 5;</code>
+     */
+    HBM_OUT_OF_MEMORY(5),
+    /**
+     * <pre>
+     * Abusive behaviors have been identified on the current project.
+     * </pre>
+     *
+     * <code>PROJECT_ABUSE = 6;</code>
+     */
+    PROJECT_ABUSE(6),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     * <pre>
+     * Unspecified symptom.
+     * </pre>
+     *
+     * <code>SYMPTOM_TYPE_UNSPECIFIED = 0;</code>
+     */
+    public static final int SYMPTOM_TYPE_UNSPECIFIED_VALUE = 0;
+    /**
+     * <pre>
+     * TPU VM memory is low.
+     * </pre>
+     *
+     * <code>LOW_MEMORY = 1;</code>
+     */
+    public static final int LOW_MEMORY_VALUE = 1;
+    /**
+     * <pre>
+     * TPU runtime is out of memory.
+     * </pre>
+     *
+     * <code>OUT_OF_MEMORY = 2;</code>
+     */
+    public static final int OUT_OF_MEMORY_VALUE = 2;
+    /**
+     * <pre>
+     * TPU runtime execution has timed out.
+     * </pre>
+     *
+     * <code>EXECUTE_TIMED_OUT = 3;</code>
+     */
+    public static final int EXECUTE_TIMED_OUT_VALUE = 3;
+    /**
+     * <pre>
+     * TPU runtime fails to construct a mesh that recognizes each TPU device's
+     * neighbors.
+     * </pre>
+     *
+     * <code>MESH_BUILD_FAIL = 4;</code>
+     */
+    public static final int MESH_BUILD_FAIL_VALUE = 4;
+    /**
+     * <pre>
+     * TPU HBM is out of memory.
+     * </pre>
+     *
+     * <code>HBM_OUT_OF_MEMORY = 5;</code>
+     */
+    public static final int HBM_OUT_OF_MEMORY_VALUE = 5;
+    /**
+     * <pre>
+     * Abusive behaviors have been identified on the current project.
+     * </pre>
+     *
+     * <code>PROJECT_ABUSE = 6;</code>
+     */
+    public static final int PROJECT_ABUSE_VALUE = 6;
+
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static SymptomType valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static SymptomType forNumber(int value) {
+      switch (value) {
+        case 0: return SYMPTOM_TYPE_UNSPECIFIED;
+        case 1: return LOW_MEMORY;
+        case 2: return OUT_OF_MEMORY;
+        case 3: return EXECUTE_TIMED_OUT;
+        case 4: return MESH_BUILD_FAIL;
+        case 5: return HBM_OUT_OF_MEMORY;
+        case 6: return PROJECT_ABUSE;
+        default: return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<SymptomType>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+    private static final com.google.protobuf.Internal.EnumLiteMap<
+        SymptomType> internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap<SymptomType>() {
+            public SymptomType findValueByNumber(int number) {
+              return SymptomType.forNumber(number);
+            }
+          };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor
+        getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+    public final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptorForType() {
+      return getDescriptor();
+    }
+    public static final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.Symptom.getDescriptor().getEnumTypes().get(0);
+    }
+
+    private static final SymptomType[] VALUES = values();
+
+    public static SymptomType valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private SymptomType(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.tpu.v2alpha1.Symptom.SymptomType)
+  }
+
+  public static final int CREATE_TIME_FIELD_NUMBER = 1;
+  private com.google.protobuf.Timestamp createTime_;
+  /**
+   * <pre>
+   * Timestamp when the Symptom is created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return Whether the createTime field is set.
+   */
+  @java.lang.Override
+  public boolean hasCreateTime() {
+    return createTime_ != null;
+  }
+  /**
+   * <pre>
+   * Timestamp when the Symptom is created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return The createTime.
+   */
+  @java.lang.Override
+  public com.google.protobuf.Timestamp getCreateTime() {
+    return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+  }
+  /**
+   * <pre>
+   * Timestamp when the Symptom is created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+    return getCreateTime();
+  }
+
+  public static final int SYMPTOM_TYPE_FIELD_NUMBER = 2;
+  private int symptomType_;
+  /**
+   * <pre>
+   * Type of the Symptom.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Symptom.SymptomType symptom_type = 2;</code>
+   * @return The enum numeric value on the wire for symptomType.
+   */
+  @java.lang.Override public int getSymptomTypeValue() {
+    return symptomType_;
+  }
+  /**
+   * <pre>
+   * Type of the Symptom.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Symptom.SymptomType symptom_type = 2;</code>
+   * @return The symptomType.
+   */
+  @java.lang.Override public com.google.cloud.tpu.v2alpha1.Symptom.SymptomType getSymptomType() {
+    @SuppressWarnings("deprecation")
+    com.google.cloud.tpu.v2alpha1.Symptom.SymptomType result = com.google.cloud.tpu.v2alpha1.Symptom.SymptomType.valueOf(symptomType_);
+    return result == null ? com.google.cloud.tpu.v2alpha1.Symptom.SymptomType.UNRECOGNIZED : result;
+  }
+
+  public static final int DETAILS_FIELD_NUMBER = 3;
+  private volatile java.lang.Object details_;
+  /**
+   * <pre>
+   * Detailed information of the current Symptom.
+   * </pre>
+   *
+   * <code>string details = 3;</code>
+   * @return The details.
+   */
+  @java.lang.Override
+  public java.lang.String getDetails() {
+    java.lang.Object ref = details_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      details_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * Detailed information of the current Symptom.
+   * </pre>
+   *
+   * <code>string details = 3;</code>
+   * @return The bytes for details.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getDetailsBytes() {
+    java.lang.Object ref = details_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      details_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int WORKER_ID_FIELD_NUMBER = 4;
+  private volatile java.lang.Object workerId_;
+  /**
+   * <pre>
+   * A string used to uniquely distinguish a worker within a TPU node.
+   * </pre>
+   *
+   * <code>string worker_id = 4;</code>
+   * @return The workerId.
+   */
+  @java.lang.Override
+  public java.lang.String getWorkerId() {
+    java.lang.Object ref = workerId_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = 
+          (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      workerId_ = s;
+      return s;
+    }
+  }
+  /**
+   * <pre>
+   * A string used to uniquely distinguish a worker within a TPU node.
+   * </pre>
+   *
+   * <code>string worker_id = 4;</code>
+   * @return The bytes for workerId.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString
+      getWorkerIdBytes() {
+    java.lang.Object ref = workerId_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b = 
+          com.google.protobuf.ByteString.copyFromUtf8(
+              (java.lang.String) ref);
+      workerId_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (createTime_ != null) {
+      output.writeMessage(1, getCreateTime());
+    }
+    if (symptomType_ != com.google.cloud.tpu.v2alpha1.Symptom.SymptomType.SYMPTOM_TYPE_UNSPECIFIED.getNumber()) {
+      output.writeEnum(2, symptomType_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(details_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, details_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(workerId_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 4, workerId_);
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (createTime_ != null) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(1, getCreateTime());
+    }
+    if (symptomType_ != com.google.cloud.tpu.v2alpha1.Symptom.SymptomType.SYMPTOM_TYPE_UNSPECIFIED.getNumber()) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeEnumSize(2, symptomType_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(details_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, details_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(workerId_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, workerId_);
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.Symptom)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.Symptom other = (com.google.cloud.tpu.v2alpha1.Symptom) obj;
+
+    if (hasCreateTime() != other.hasCreateTime()) return false;
+    if (hasCreateTime()) {
+      if (!getCreateTime()
+          .equals(other.getCreateTime())) return false;
+    }
+    if (symptomType_ != other.symptomType_) return false;
+    if (!getDetails()
+        .equals(other.getDetails())) return false;
+    if (!getWorkerId()
+        .equals(other.getWorkerId())) return false;
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasCreateTime()) {
+      hash = (37 * hash) + CREATE_TIME_FIELD_NUMBER;
+      hash = (53 * hash) + getCreateTime().hashCode();
+    }
+    hash = (37 * hash) + SYMPTOM_TYPE_FIELD_NUMBER;
+    hash = (53 * hash) + symptomType_;
+    hash = (37 * hash) + DETAILS_FIELD_NUMBER;
+    hash = (53 * hash) + getDetails().hashCode();
+    hash = (37 * hash) + WORKER_ID_FIELD_NUMBER;
+    hash = (53 * hash) + getWorkerId().hashCode();
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.Symptom parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.Symptom parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.Symptom parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.Symptom parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.Symptom parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.Symptom parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.Symptom parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.Symptom parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.Symptom parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.Symptom parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.Symptom parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.Symptom parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.Symptom prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * A Symptom instance.
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.Symptom}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.Symptom)
+      com.google.cloud.tpu.v2alpha1.SymptomOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_Symptom_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_Symptom_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.Symptom.class, com.google.cloud.tpu.v2alpha1.Symptom.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.Symptom.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (createTimeBuilder_ == null) {
+        createTime_ = null;
+      } else {
+        createTime_ = null;
+        createTimeBuilder_ = null;
+      }
+      symptomType_ = 0;
+
+      details_ = "";
+
+      workerId_ = "";
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_Symptom_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.Symptom getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.Symptom.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.Symptom build() {
+      com.google.cloud.tpu.v2alpha1.Symptom result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.Symptom buildPartial() {
+      com.google.cloud.tpu.v2alpha1.Symptom result = new com.google.cloud.tpu.v2alpha1.Symptom(this);
+      if (createTimeBuilder_ == null) {
+        result.createTime_ = createTime_;
+      } else {
+        result.createTime_ = createTimeBuilder_.build();
+      }
+      result.symptomType_ = symptomType_;
+      result.details_ = details_;
+      result.workerId_ = workerId_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.Symptom) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.Symptom)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.Symptom other) {
+      if (other == com.google.cloud.tpu.v2alpha1.Symptom.getDefaultInstance()) return this;
+      if (other.hasCreateTime()) {
+        mergeCreateTime(other.getCreateTime());
+      }
+      if (other.symptomType_ != 0) {
+        setSymptomTypeValue(other.getSymptomTypeValue());
+      }
+      if (!other.getDetails().isEmpty()) {
+        details_ = other.details_;
+        onChanged();
+      }
+      if (!other.getWorkerId().isEmpty()) {
+        workerId_ = other.workerId_;
+        onChanged();
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.Symptom parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.Symptom) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.protobuf.Timestamp createTime_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> createTimeBuilder_;
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     * @return Whether the createTime field is set.
+     */
+    public boolean hasCreateTime() {
+      return createTimeBuilder_ != null || createTime_ != null;
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     * @return The createTime.
+     */
+    public com.google.protobuf.Timestamp getCreateTime() {
+      if (createTimeBuilder_ == null) {
+        return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+      } else {
+        return createTimeBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder setCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        createTime_ = value;
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder setCreateTime(
+        com.google.protobuf.Timestamp.Builder builderForValue) {
+      if (createTimeBuilder_ == null) {
+        createTime_ = builderForValue.build();
+        onChanged();
+      } else {
+        createTimeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder mergeCreateTime(com.google.protobuf.Timestamp value) {
+      if (createTimeBuilder_ == null) {
+        if (createTime_ != null) {
+          createTime_ =
+            com.google.protobuf.Timestamp.newBuilder(createTime_).mergeFrom(value).buildPartial();
+        } else {
+          createTime_ = value;
+        }
+        onChanged();
+      } else {
+        createTimeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public Builder clearCreateTime() {
+      if (createTimeBuilder_ == null) {
+        createTime_ = null;
+        onChanged();
+      } else {
+        createTime_ = null;
+        createTimeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public com.google.protobuf.Timestamp.Builder getCreateTimeBuilder() {
+      
+      onChanged();
+      return getCreateTimeFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+      if (createTimeBuilder_ != null) {
+        return createTimeBuilder_.getMessageOrBuilder();
+      } else {
+        return createTime_ == null ?
+            com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+      }
+    }
+    /**
+     * <pre>
+     * Timestamp when the Symptom is created.
+     * </pre>
+     *
+     * <code>.google.protobuf.Timestamp create_time = 1;</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder> 
+        getCreateTimeFieldBuilder() {
+      if (createTimeBuilder_ == null) {
+        createTimeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.Timestamp, com.google.protobuf.Timestamp.Builder, com.google.protobuf.TimestampOrBuilder>(
+                getCreateTime(),
+                getParentForChildren(),
+                isClean());
+        createTime_ = null;
+      }
+      return createTimeBuilder_;
+    }
+
+    private int symptomType_ = 0;
+    /**
+     * <pre>
+     * Type of the Symptom.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Symptom.SymptomType symptom_type = 2;</code>
+     * @return The enum numeric value on the wire for symptomType.
+     */
+    @java.lang.Override public int getSymptomTypeValue() {
+      return symptomType_;
+    }
+    /**
+     * <pre>
+     * Type of the Symptom.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Symptom.SymptomType symptom_type = 2;</code>
+     * @param value The enum numeric value on the wire for symptomType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSymptomTypeValue(int value) {
+      
+      symptomType_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Type of the Symptom.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Symptom.SymptomType symptom_type = 2;</code>
+     * @return The symptomType.
+     */
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.Symptom.SymptomType getSymptomType() {
+      @SuppressWarnings("deprecation")
+      com.google.cloud.tpu.v2alpha1.Symptom.SymptomType result = com.google.cloud.tpu.v2alpha1.Symptom.SymptomType.valueOf(symptomType_);
+      return result == null ? com.google.cloud.tpu.v2alpha1.Symptom.SymptomType.UNRECOGNIZED : result;
+    }
+    /**
+     * <pre>
+     * Type of the Symptom.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Symptom.SymptomType symptom_type = 2;</code>
+     * @param value The symptomType to set.
+     * @return This builder for chaining.
+     */
+    public Builder setSymptomType(com.google.cloud.tpu.v2alpha1.Symptom.SymptomType value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      
+      symptomType_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Type of the Symptom.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Symptom.SymptomType symptom_type = 2;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearSymptomType() {
+      
+      symptomType_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object details_ = "";
+    /**
+     * <pre>
+     * Detailed information of the current Symptom.
+     * </pre>
+     *
+     * <code>string details = 3;</code>
+     * @return The details.
+     */
+    public java.lang.String getDetails() {
+      java.lang.Object ref = details_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        details_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Detailed information of the current Symptom.
+     * </pre>
+     *
+     * <code>string details = 3;</code>
+     * @return The bytes for details.
+     */
+    public com.google.protobuf.ByteString
+        getDetailsBytes() {
+      java.lang.Object ref = details_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        details_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * Detailed information of the current Symptom.
+     * </pre>
+     *
+     * <code>string details = 3;</code>
+     * @param value The details to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDetails(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      details_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Detailed information of the current Symptom.
+     * </pre>
+     *
+     * <code>string details = 3;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearDetails() {
+      
+      details_ = getDefaultInstance().getDetails();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * Detailed information of the current Symptom.
+     * </pre>
+     *
+     * <code>string details = 3;</code>
+     * @param value The bytes for details to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDetailsBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      details_ = value;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object workerId_ = "";
+    /**
+     * <pre>
+     * A string used to uniquely distinguish a worker within a TPU node.
+     * </pre>
+     *
+     * <code>string worker_id = 4;</code>
+     * @return The workerId.
+     */
+    public java.lang.String getWorkerId() {
+      java.lang.Object ref = workerId_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs =
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        workerId_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     * <pre>
+     * A string used to uniquely distinguish a worker within a TPU node.
+     * </pre>
+     *
+     * <code>string worker_id = 4;</code>
+     * @return The bytes for workerId.
+     */
+    public com.google.protobuf.ByteString
+        getWorkerIdBytes() {
+      java.lang.Object ref = workerId_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        workerId_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     * <pre>
+     * A string used to uniquely distinguish a worker within a TPU node.
+     * </pre>
+     *
+     * <code>string worker_id = 4;</code>
+     * @param value The workerId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setWorkerId(
+        java.lang.String value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  
+      workerId_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * A string used to uniquely distinguish a worker within a TPU node.
+     * </pre>
+     *
+     * <code>string worker_id = 4;</code>
+     * @return This builder for chaining.
+     */
+    public Builder clearWorkerId() {
+      
+      workerId_ = getDefaultInstance().getWorkerId();
+      onChanged();
+      return this;
+    }
+    /**
+     * <pre>
+     * A string used to uniquely distinguish a worker within a TPU node.
+     * </pre>
+     *
+     * <code>string worker_id = 4;</code>
+     * @param value The bytes for workerId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setWorkerIdBytes(
+        com.google.protobuf.ByteString value) {
+      if (value == null) {
+    throw new NullPointerException();
+  }
+  checkByteStringIsUtf8(value);
+      
+      workerId_ = value;
+      onChanged();
+      return this;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.Symptom)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.Symptom)
+  private static final com.google.cloud.tpu.v2alpha1.Symptom DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.Symptom();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.Symptom getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<Symptom>
+      PARSER = new com.google.protobuf.AbstractParser<Symptom>() {
+    @java.lang.Override
+    public Symptom parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new Symptom(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<Symptom> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<Symptom> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.Symptom getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SymptomOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SymptomOrBuilder.java
new file mode 100644
index 000000000000..10c2a01cbd87
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/SymptomOrBuilder.java
@@ -0,0 +1,95 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface SymptomOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.Symptom)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Timestamp when the Symptom is created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return Whether the createTime field is set.
+   */
+  boolean hasCreateTime();
+  /**
+   * <pre>
+   * Timestamp when the Symptom is created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   * @return The createTime.
+   */
+  com.google.protobuf.Timestamp getCreateTime();
+  /**
+   * <pre>
+   * Timestamp when the Symptom is created.
+   * </pre>
+   *
+   * <code>.google.protobuf.Timestamp create_time = 1;</code>
+   */
+  com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder();
+
+  /**
+   * <pre>
+   * Type of the Symptom.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Symptom.SymptomType symptom_type = 2;</code>
+   * @return The enum numeric value on the wire for symptomType.
+   */
+  int getSymptomTypeValue();
+  /**
+   * <pre>
+   * Type of the Symptom.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Symptom.SymptomType symptom_type = 2;</code>
+   * @return The symptomType.
+   */
+  com.google.cloud.tpu.v2alpha1.Symptom.SymptomType getSymptomType();
+
+  /**
+   * <pre>
+   * Detailed information of the current Symptom.
+   * </pre>
+   *
+   * <code>string details = 3;</code>
+   * @return The details.
+   */
+  java.lang.String getDetails();
+  /**
+   * <pre>
+   * Detailed information of the current Symptom.
+   * </pre>
+   *
+   * <code>string details = 3;</code>
+   * @return The bytes for details.
+   */
+  com.google.protobuf.ByteString
+      getDetailsBytes();
+
+  /**
+   * <pre>
+   * A string used to uniquely distinguish a worker within a TPU node.
+   * </pre>
+   *
+   * <code>string worker_id = 4;</code>
+   * @return The workerId.
+   */
+  java.lang.String getWorkerId();
+  /**
+   * <pre>
+   * A string used to uniquely distinguish a worker within a TPU node.
+   * </pre>
+   *
+   * <code>string worker_id = 4;</code>
+   * @return The bytes for workerId.
+   */
+  com.google.protobuf.ByteString
+      getWorkerIdBytes();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequest.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequest.java
new file mode 100644
index 000000000000..d92d0d3b66d6
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequest.java
@@ -0,0 +1,913 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+/**
+ * <pre>
+ * Request for [UpdateNode][google.cloud.tpu.v2alpha1.Tpu.UpdateNode].
+ * </pre>
+ *
+ * Protobuf type {@code google.cloud.tpu.v2alpha1.UpdateNodeRequest}
+ */
+public final class UpdateNodeRequest extends
+    com.google.protobuf.GeneratedMessageV3 implements
+    // @@protoc_insertion_point(message_implements:google.cloud.tpu.v2alpha1.UpdateNodeRequest)
+    UpdateNodeRequestOrBuilder {
+private static final long serialVersionUID = 0L;
+  // Use UpdateNodeRequest.newBuilder() to construct.
+  private UpdateNodeRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+    super(builder);
+  }
+  private UpdateNodeRequest() {
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(
+      UnusedPrivateParameter unused) {
+    return new UpdateNodeRequest();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet
+  getUnknownFields() {
+    return this.unknownFields;
+  }
+  private UpdateNodeRequest(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    this();
+    if (extensionRegistry == null) {
+      throw new java.lang.NullPointerException();
+    }
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
+    try {
+      boolean done = false;
+      while (!done) {
+        int tag = input.readTag();
+        switch (tag) {
+          case 0:
+            done = true;
+            break;
+          case 10: {
+            com.google.protobuf.FieldMask.Builder subBuilder = null;
+            if (updateMask_ != null) {
+              subBuilder = updateMask_.toBuilder();
+            }
+            updateMask_ = input.readMessage(com.google.protobuf.FieldMask.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(updateMask_);
+              updateMask_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          case 18: {
+            com.google.cloud.tpu.v2alpha1.Node.Builder subBuilder = null;
+            if (node_ != null) {
+              subBuilder = node_.toBuilder();
+            }
+            node_ = input.readMessage(com.google.cloud.tpu.v2alpha1.Node.parser(), extensionRegistry);
+            if (subBuilder != null) {
+              subBuilder.mergeFrom(node_);
+              node_ = subBuilder.buildPartial();
+            }
+
+            break;
+          }
+          default: {
+            if (!parseUnknownField(
+                input, unknownFields, extensionRegistry, tag)) {
+              done = true;
+            }
+            break;
+          }
+        }
+      }
+    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+      throw e.setUnfinishedMessage(this);
+    } catch (com.google.protobuf.UninitializedMessageException e) {
+      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+    } catch (java.io.IOException e) {
+      throw new com.google.protobuf.InvalidProtocolBufferException(
+          e).setUnfinishedMessage(this);
+    } finally {
+      this.unknownFields = unknownFields.build();
+      makeExtensionsImmutable();
+    }
+  }
+  public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_UpdateNodeRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_UpdateNodeRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.tpu.v2alpha1.UpdateNodeRequest.class, com.google.cloud.tpu.v2alpha1.UpdateNodeRequest.Builder.class);
+  }
+
+  public static final int UPDATE_MASK_FIELD_NUMBER = 1;
+  private com.google.protobuf.FieldMask updateMask_;
+  /**
+   * <pre>
+   * Required. Mask of fields from [Node][Tpu.Node] to update.
+   * Supported fields: None.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return Whether the updateMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasUpdateMask() {
+    return updateMask_ != null;
+  }
+  /**
+   * <pre>
+   * Required. Mask of fields from [Node][Tpu.Node] to update.
+   * Supported fields: None.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The updateMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getUpdateMask() {
+    return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+  }
+  /**
+   * <pre>
+   * Required. Mask of fields from [Node][Tpu.Node] to update.
+   * Supported fields: None.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+    return getUpdateMask();
+  }
+
+  public static final int NODE_FIELD_NUMBER = 2;
+  private com.google.cloud.tpu.v2alpha1.Node node_;
+  /**
+   * <pre>
+   * Required. The node. Only fields specified in update_mask are updated.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return Whether the node field is set.
+   */
+  @java.lang.Override
+  public boolean hasNode() {
+    return node_ != null;
+  }
+  /**
+   * <pre>
+   * Required. The node. Only fields specified in update_mask are updated.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The node.
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.Node getNode() {
+    return node_ == null ? com.google.cloud.tpu.v2alpha1.Node.getDefaultInstance() : node_;
+  }
+  /**
+   * <pre>
+   * Required. The node. Only fields specified in update_mask are updated.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   */
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.NodeOrBuilder getNodeOrBuilder() {
+    return getNode();
+  }
+
+  private byte memoizedIsInitialized = -1;
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output)
+                      throws java.io.IOException {
+    if (updateMask_ != null) {
+      output.writeMessage(1, getUpdateMask());
+    }
+    if (node_ != null) {
+      output.writeMessage(2, getNode());
+    }
+    unknownFields.writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (updateMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(1, getUpdateMask());
+    }
+    if (node_ != null) {
+      size += com.google.protobuf.CodedOutputStream
+        .computeMessageSize(2, getNode());
+    }
+    size += unknownFields.getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+     return true;
+    }
+    if (!(obj instanceof com.google.cloud.tpu.v2alpha1.UpdateNodeRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.tpu.v2alpha1.UpdateNodeRequest other = (com.google.cloud.tpu.v2alpha1.UpdateNodeRequest) obj;
+
+    if (hasUpdateMask() != other.hasUpdateMask()) return false;
+    if (hasUpdateMask()) {
+      if (!getUpdateMask()
+          .equals(other.getUpdateMask())) return false;
+    }
+    if (hasNode() != other.hasNode()) return false;
+    if (hasNode()) {
+      if (!getNode()
+          .equals(other.getNode())) return false;
+    }
+    if (!unknownFields.equals(other.unknownFields)) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasUpdateMask()) {
+      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getUpdateMask().hashCode();
+    }
+    if (hasNode()) {
+      hash = (37 * hash) + NODE_FIELD_NUMBER;
+      hash = (53 * hash) + getNode().hashCode();
+    }
+    hash = (29 * hash) + unknownFields.hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.UpdateNodeRequest parseFrom(
+      java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.UpdateNodeRequest parseFrom(
+      java.nio.ByteBuffer data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.UpdateNodeRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.UpdateNodeRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.UpdateNodeRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+  public static com.google.cloud.tpu.v2alpha1.UpdateNodeRequest parseFrom(
+      byte[] data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.UpdateNodeRequest parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.UpdateNodeRequest parseFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.UpdateNodeRequest parseDelimitedFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.UpdateNodeRequest parseDelimitedFrom(
+      java.io.InputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+  }
+  public static com.google.cloud.tpu.v2alpha1.UpdateNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input);
+  }
+  public static com.google.cloud.tpu.v2alpha1.UpdateNodeRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3
+        .parseWithIOException(PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() { return newBuilder(); }
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+  public static Builder newBuilder(com.google.cloud.tpu.v2alpha1.UpdateNodeRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE
+        ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(
+      com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   * <pre>
+   * Request for [UpdateNode][google.cloud.tpu.v2alpha1.Tpu.UpdateNode].
+   * </pre>
+   *
+   * Protobuf type {@code google.cloud.tpu.v2alpha1.UpdateNodeRequest}
+   */
+  public static final class Builder extends
+      com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.tpu.v2alpha1.UpdateNodeRequest)
+      com.google.cloud.tpu.v2alpha1.UpdateNodeRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_UpdateNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_UpdateNodeRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.tpu.v2alpha1.UpdateNodeRequest.class, com.google.cloud.tpu.v2alpha1.UpdateNodeRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.tpu.v2alpha1.UpdateNodeRequest.newBuilder()
+    private Builder() {
+      maybeForceBuilderInitialization();
+    }
+
+    private Builder(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+      maybeForceBuilderInitialization();
+    }
+    private void maybeForceBuilderInitialization() {
+      if (com.google.protobuf.GeneratedMessageV3
+              .alwaysUseFieldBuilders) {
+      }
+    }
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+      if (nodeBuilder_ == null) {
+        node_ = null;
+      } else {
+        node_ = null;
+        nodeBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor
+        getDescriptorForType() {
+      return com.google.cloud.tpu.v2alpha1.CloudTpuProto.internal_static_google_cloud_tpu_v2alpha1_UpdateNodeRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.UpdateNodeRequest getDefaultInstanceForType() {
+      return com.google.cloud.tpu.v2alpha1.UpdateNodeRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.UpdateNodeRequest build() {
+      com.google.cloud.tpu.v2alpha1.UpdateNodeRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.tpu.v2alpha1.UpdateNodeRequest buildPartial() {
+      com.google.cloud.tpu.v2alpha1.UpdateNodeRequest result = new com.google.cloud.tpu.v2alpha1.UpdateNodeRequest(this);
+      if (updateMaskBuilder_ == null) {
+        result.updateMask_ = updateMask_;
+      } else {
+        result.updateMask_ = updateMaskBuilder_.build();
+      }
+      if (nodeBuilder_ == null) {
+        result.node_ = node_;
+      } else {
+        result.node_ = nodeBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.setField(field, value);
+    }
+    @java.lang.Override
+    public Builder clearField(
+        com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+    @java.lang.Override
+    public Builder clearOneof(
+        com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field,
+        java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.tpu.v2alpha1.UpdateNodeRequest) {
+        return mergeFrom((com.google.cloud.tpu.v2alpha1.UpdateNodeRequest)other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.tpu.v2alpha1.UpdateNodeRequest other) {
+      if (other == com.google.cloud.tpu.v2alpha1.UpdateNodeRequest.getDefaultInstance()) return this;
+      if (other.hasUpdateMask()) {
+        mergeUpdateMask(other.getUpdateMask());
+      }
+      if (other.hasNode()) {
+        mergeNode(other.getNode());
+      }
+      this.mergeUnknownFields(other.unknownFields);
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      com.google.cloud.tpu.v2alpha1.UpdateNodeRequest parsedMessage = null;
+      try {
+        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        parsedMessage = (com.google.cloud.tpu.v2alpha1.UpdateNodeRequest) e.getUnfinishedMessage();
+        throw e.unwrapIOException();
+      } finally {
+        if (parsedMessage != null) {
+          mergeFrom(parsedMessage);
+        }
+      }
+      return this;
+    }
+
+    private com.google.protobuf.FieldMask updateMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.FieldMask, com.google.protobuf.FieldMask.Builder, com.google.protobuf.FieldMaskOrBuilder> updateMaskBuilder_;
+    /**
+     * <pre>
+     * Required. Mask of fields from [Node][Tpu.Node] to update.
+     * Supported fields: None.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return Whether the updateMask field is set.
+     */
+    public boolean hasUpdateMask() {
+      return updateMaskBuilder_ != null || updateMask_ != null;
+    }
+    /**
+     * <pre>
+     * Required. Mask of fields from [Node][Tpu.Node] to update.
+     * Supported fields: None.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return The updateMask.
+     */
+    public com.google.protobuf.FieldMask getUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        return updateMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+      } else {
+        return updateMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * Required. Mask of fields from [Node][Tpu.Node] to update.
+     * Supported fields: None.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder setUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        updateMask_ = value;
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. Mask of fields from [Node][Tpu.Node] to update.
+     * Supported fields: None.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder setUpdateMask(
+        com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = builderForValue.build();
+        onChanged();
+      } else {
+        updateMaskBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. Mask of fields from [Node][Tpu.Node] to update.
+     * Supported fields: None.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder mergeUpdateMask(com.google.protobuf.FieldMask value) {
+      if (updateMaskBuilder_ == null) {
+        if (updateMask_ != null) {
+          updateMask_ =
+            com.google.protobuf.FieldMask.newBuilder(updateMask_).mergeFrom(value).buildPartial();
+        } else {
+          updateMask_ = value;
+        }
+        onChanged();
+      } else {
+        updateMaskBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. Mask of fields from [Node][Tpu.Node] to update.
+     * Supported fields: None.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder clearUpdateMask() {
+      if (updateMaskBuilder_ == null) {
+        updateMask_ = null;
+        onChanged();
+      } else {
+        updateMask_ = null;
+        updateMaskBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. Mask of fields from [Node][Tpu.Node] to update.
+     * Supported fields: None.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public com.google.protobuf.FieldMask.Builder getUpdateMaskBuilder() {
+      
+      onChanged();
+      return getUpdateMaskFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * Required. Mask of fields from [Node][Tpu.Node] to update.
+     * Supported fields: None.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder() {
+      if (updateMaskBuilder_ != null) {
+        return updateMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return updateMask_ == null ?
+            com.google.protobuf.FieldMask.getDefaultInstance() : updateMask_;
+      }
+    }
+    /**
+     * <pre>
+     * Required. Mask of fields from [Node][Tpu.Node] to update.
+     * Supported fields: None.
+     * </pre>
+     *
+     * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.protobuf.FieldMask, com.google.protobuf.FieldMask.Builder, com.google.protobuf.FieldMaskOrBuilder> 
+        getUpdateMaskFieldBuilder() {
+      if (updateMaskBuilder_ == null) {
+        updateMaskBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask, com.google.protobuf.FieldMask.Builder, com.google.protobuf.FieldMaskOrBuilder>(
+                getUpdateMask(),
+                getParentForChildren(),
+                isClean());
+        updateMask_ = null;
+      }
+      return updateMaskBuilder_;
+    }
+
+    private com.google.cloud.tpu.v2alpha1.Node node_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.Node, com.google.cloud.tpu.v2alpha1.Node.Builder, com.google.cloud.tpu.v2alpha1.NodeOrBuilder> nodeBuilder_;
+    /**
+     * <pre>
+     * Required. The node. Only fields specified in update_mask are updated.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return Whether the node field is set.
+     */
+    public boolean hasNode() {
+      return nodeBuilder_ != null || node_ != null;
+    }
+    /**
+     * <pre>
+     * Required. The node. Only fields specified in update_mask are updated.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     * @return The node.
+     */
+    public com.google.cloud.tpu.v2alpha1.Node getNode() {
+      if (nodeBuilder_ == null) {
+        return node_ == null ? com.google.cloud.tpu.v2alpha1.Node.getDefaultInstance() : node_;
+      } else {
+        return nodeBuilder_.getMessage();
+      }
+    }
+    /**
+     * <pre>
+     * Required. The node. Only fields specified in update_mask are updated.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder setNode(com.google.cloud.tpu.v2alpha1.Node value) {
+      if (nodeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        node_ = value;
+        onChanged();
+      } else {
+        nodeBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The node. Only fields specified in update_mask are updated.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder setNode(
+        com.google.cloud.tpu.v2alpha1.Node.Builder builderForValue) {
+      if (nodeBuilder_ == null) {
+        node_ = builderForValue.build();
+        onChanged();
+      } else {
+        nodeBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The node. Only fields specified in update_mask are updated.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder mergeNode(com.google.cloud.tpu.v2alpha1.Node value) {
+      if (nodeBuilder_ == null) {
+        if (node_ != null) {
+          node_ =
+            com.google.cloud.tpu.v2alpha1.Node.newBuilder(node_).mergeFrom(value).buildPartial();
+        } else {
+          node_ = value;
+        }
+        onChanged();
+      } else {
+        nodeBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The node. Only fields specified in update_mask are updated.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public Builder clearNode() {
+      if (nodeBuilder_ == null) {
+        node_ = null;
+        onChanged();
+      } else {
+        node_ = null;
+        nodeBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     * <pre>
+     * Required. The node. Only fields specified in update_mask are updated.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.Node.Builder getNodeBuilder() {
+      
+      onChanged();
+      return getNodeFieldBuilder().getBuilder();
+    }
+    /**
+     * <pre>
+     * Required. The node. Only fields specified in update_mask are updated.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    public com.google.cloud.tpu.v2alpha1.NodeOrBuilder getNodeOrBuilder() {
+      if (nodeBuilder_ != null) {
+        return nodeBuilder_.getMessageOrBuilder();
+      } else {
+        return node_ == null ?
+            com.google.cloud.tpu.v2alpha1.Node.getDefaultInstance() : node_;
+      }
+    }
+    /**
+     * <pre>
+     * Required. The node. Only fields specified in update_mask are updated.
+     * </pre>
+     *
+     * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+        com.google.cloud.tpu.v2alpha1.Node, com.google.cloud.tpu.v2alpha1.Node.Builder, com.google.cloud.tpu.v2alpha1.NodeOrBuilder> 
+        getNodeFieldBuilder() {
+      if (nodeBuilder_ == null) {
+        nodeBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.tpu.v2alpha1.Node, com.google.cloud.tpu.v2alpha1.Node.Builder, com.google.cloud.tpu.v2alpha1.NodeOrBuilder>(
+                getNode(),
+                getParentForChildren(),
+                isClean());
+        node_ = null;
+      }
+      return nodeBuilder_;
+    }
+    @java.lang.Override
+    public final Builder setUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.tpu.v2alpha1.UpdateNodeRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.tpu.v2alpha1.UpdateNodeRequest)
+  private static final com.google.cloud.tpu.v2alpha1.UpdateNodeRequest DEFAULT_INSTANCE;
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.tpu.v2alpha1.UpdateNodeRequest();
+  }
+
+  public static com.google.cloud.tpu.v2alpha1.UpdateNodeRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser<UpdateNodeRequest>
+      PARSER = new com.google.protobuf.AbstractParser<UpdateNodeRequest>() {
+    @java.lang.Override
+    public UpdateNodeRequest parsePartialFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return new UpdateNodeRequest(input, extensionRegistry);
+    }
+  };
+
+  public static com.google.protobuf.Parser<UpdateNodeRequest> parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser<UpdateNodeRequest> getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.tpu.v2alpha1.UpdateNodeRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+
+}
+
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequestOrBuilder.java b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequestOrBuilder.java
new file mode 100644
index 000000000000..c268e829ed7d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequestOrBuilder.java
@@ -0,0 +1,66 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/tpu/v2alpha1/cloud_tpu.proto
+
+package com.google.cloud.tpu.v2alpha1;
+
+public interface UpdateNodeRequestOrBuilder extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.tpu.v2alpha1.UpdateNodeRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * <pre>
+   * Required. Mask of fields from [Node][Tpu.Node] to update.
+   * Supported fields: None.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return Whether the updateMask field is set.
+   */
+  boolean hasUpdateMask();
+  /**
+   * <pre>
+   * Required. Mask of fields from [Node][Tpu.Node] to update.
+   * Supported fields: None.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The updateMask.
+   */
+  com.google.protobuf.FieldMask getUpdateMask();
+  /**
+   * <pre>
+   * Required. Mask of fields from [Node][Tpu.Node] to update.
+   * Supported fields: None.
+   * </pre>
+   *
+   * <code>.google.protobuf.FieldMask update_mask = 1 [(.google.api.field_behavior) = REQUIRED];</code>
+   */
+  com.google.protobuf.FieldMaskOrBuilder getUpdateMaskOrBuilder();
+
+  /**
+   * <pre>
+   * Required. The node. Only fields specified in update_mask are updated.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return Whether the node field is set.
+   */
+  boolean hasNode();
+  /**
+   * <pre>
+   * Required. The node. Only fields specified in update_mask are updated.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   * @return The node.
+   */
+  com.google.cloud.tpu.v2alpha1.Node getNode();
+  /**
+   * <pre>
+   * Required. The node. Only fields specified in update_mask are updated.
+   * </pre>
+   *
+   * <code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];</code>
+   */
+  com.google.cloud.tpu.v2alpha1.NodeOrBuilder getNodeOrBuilder();
+}
diff --git a/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/proto/google/cloud/tpu/v2alpha1/cloud_tpu.proto b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/proto/google/cloud/tpu/v2alpha1/cloud_tpu.proto
new file mode 100644
index 000000000000..612e1c4f5ddb
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/proto-google-cloud-tpu-v2alpha1/src/main/proto/google/cloud/tpu/v2alpha1/cloud_tpu.proto
@@ -0,0 +1,791 @@
+// Copyright 2022 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.tpu.v2alpha1;
+
+import "google/api/annotations.proto";
+import "google/api/client.proto";
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/longrunning/operations.proto";
+import "google/protobuf/field_mask.proto";
+import "google/protobuf/timestamp.proto";
+
+option go_package = "google.golang.org/genproto/googleapis/cloud/tpu/v2alpha1;tpu";
+option java_multiple_files = true;
+option java_outer_classname = "CloudTpuProto";
+option java_package = "com.google.cloud.tpu.v2alpha1";
+
+// Manages TPU nodes and other resources
+//
+// TPU API v2alpha1
+service Tpu {
+  option (google.api.default_host) = "tpu.googleapis.com";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform";
+
+  // Lists nodes.
+  rpc ListNodes(ListNodesRequest) returns (ListNodesResponse) {
+    option (google.api.http) = {
+      get: "/v2alpha1/{parent=projects/*/locations/*}/nodes"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Gets the details of a node.
+  rpc GetNode(GetNodeRequest) returns (Node) {
+    option (google.api.http) = {
+      get: "/v2alpha1/{name=projects/*/locations/*/nodes/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Creates a node.
+  rpc CreateNode(CreateNodeRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v2alpha1/{parent=projects/*/locations/*}/nodes"
+      body: "node"
+    };
+    option (google.api.method_signature) = "parent,node,node_id";
+    option (google.longrunning.operation_info) = {
+      response_type: "Node"
+      metadata_type: "OperationMetadata"
+    };
+  }
+
+  // Deletes a node.
+  rpc DeleteNode(DeleteNodeRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      delete: "/v2alpha1/{name=projects/*/locations/*/nodes/*}"
+    };
+    option (google.api.method_signature) = "name";
+    option (google.longrunning.operation_info) = {
+      response_type: "Node"
+      metadata_type: "OperationMetadata"
+    };
+  }
+
+  // Stops a node. This operation is only available with single TPU nodes.
+  rpc StopNode(StopNodeRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v2alpha1/{name=projects/*/locations/*/nodes/*}:stop"
+      body: "*"
+    };
+    option (google.longrunning.operation_info) = {
+      response_type: "Node"
+      metadata_type: "OperationMetadata"
+    };
+  }
+
+  // Starts a node.
+  rpc StartNode(StartNodeRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v2alpha1/{name=projects/*/locations/*/nodes/*}:start"
+      body: "*"
+    };
+    option (google.longrunning.operation_info) = {
+      response_type: "Node"
+      metadata_type: "OperationMetadata"
+    };
+  }
+
+  // Updates the configurations of a node.
+  rpc UpdateNode(UpdateNodeRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      patch: "/v2alpha1/{node.name=projects/*/locations/*/nodes/*}"
+      body: "node"
+    };
+    option (google.api.method_signature) = "node,update_mask";
+    option (google.longrunning.operation_info) = {
+      response_type: "Node"
+      metadata_type: "OperationMetadata"
+    };
+  }
+
+  // Generates the Cloud TPU service identity for the project.
+  rpc GenerateServiceIdentity(GenerateServiceIdentityRequest)
+      returns (GenerateServiceIdentityResponse) {
+    option (google.api.http) = {
+      post: "/v2alpha1/{parent=projects/*/locations/*}:generateServiceIdentity"
+      body: "*"
+    };
+  }
+
+  // Lists accelerator types supported by this API.
+  rpc ListAcceleratorTypes(ListAcceleratorTypesRequest)
+      returns (ListAcceleratorTypesResponse) {
+    option (google.api.http) = {
+      get: "/v2alpha1/{parent=projects/*/locations/*}/acceleratorTypes"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Gets AcceleratorType.
+  rpc GetAcceleratorType(GetAcceleratorTypeRequest) returns (AcceleratorType) {
+    option (google.api.http) = {
+      get: "/v2alpha1/{name=projects/*/locations/*/acceleratorTypes/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Lists runtime versions supported by this API.
+  rpc ListRuntimeVersions(ListRuntimeVersionsRequest)
+      returns (ListRuntimeVersionsResponse) {
+    option (google.api.http) = {
+      get: "/v2alpha1/{parent=projects/*/locations/*}/runtimeVersions"
+    };
+    option (google.api.method_signature) = "parent";
+  }
+
+  // Gets a runtime version.
+  rpc GetRuntimeVersion(GetRuntimeVersionRequest) returns (RuntimeVersion) {
+    option (google.api.http) = {
+      get: "/v2alpha1/{name=projects/*/locations/*/runtimeVersions/*}"
+    };
+    option (google.api.method_signature) = "name";
+  }
+
+  // Retrieves the guest attributes for the node.
+  rpc GetGuestAttributes(GetGuestAttributesRequest)
+      returns (GetGuestAttributesResponse) {
+    option (google.api.http) = {
+      post: "/v2alpha1/{name=projects/*/locations/*/nodes/*}:getGuestAttributes"
+      body: "*"
+    };
+  }
+}
+
+// A guest attributes.
+message GuestAttributes {
+  // The path to be queried. This can be the default namespace ('/') or a
+  // nested namespace ('/\<namespace\>/') or a specified key
+  // ('/\<namespace\>/\<key\>')
+  string query_path = 1;
+
+  // The value of the requested queried path.
+  GuestAttributesValue query_value = 2;
+}
+
+// Array of guest attribute namespace/key/value tuples.
+message GuestAttributesValue {
+  // The list of guest attributes entries.
+  repeated GuestAttributesEntry items = 1;
+}
+
+// A guest attributes namespace/key/value entry.
+message GuestAttributesEntry {
+  // Namespace for the guest attribute entry.
+  string namespace = 1;
+
+  // Key for the guest attribute entry.
+  string key = 2;
+
+  // Value for the guest attribute entry.
+  string value = 3;
+}
+
+// A node-attached disk resource.
+// Next ID: 8;
+message AttachedDisk {
+  // The different mode of the attached disk.
+  enum DiskMode {
+    // The disk mode is not known/set.
+    DISK_MODE_UNSPECIFIED = 0;
+
+    // Attaches the disk in read-write mode. Only one TPU node can attach a disk
+    // in read-write mode at a time.
+    READ_WRITE = 1;
+
+    // Attaches the disk in read-only mode. Multiple TPU nodes can attach
+    // a disk in read-only mode at a time.
+    READ_ONLY = 2;
+  }
+
+  // Specifies the full path to an existing disk.
+  // For example: "projects/my-project/zones/us-central1-c/disks/my-disk".
+  string source_disk = 3;
+
+  // The mode in which to attach this disk.
+  // If not specified, the default is READ_WRITE mode.
+  // Only applicable to data_disks.
+  DiskMode mode = 4;
+}
+
+// Sets the scheduling options for this node.
+message SchedulingConfig {
+  // Defines whether the node is preemptible.
+  bool preemptible = 1;
+
+  // Whether the node is created under a reservation.
+  bool reserved = 2;
+}
+
+// A network endpoint over which a TPU worker can be reached.
+message NetworkEndpoint {
+  // The internal IP address of this network endpoint.
+  string ip_address = 1;
+
+  // The port of this network endpoint.
+  int32 port = 2;
+
+  // The access config for the TPU worker.
+  AccessConfig access_config = 5;
+}
+
+// An access config attached to the TPU worker.
+message AccessConfig {
+  // Output only. An external IP address associated with the TPU worker.
+  string external_ip = 1 [(google.api.field_behavior) = OUTPUT_ONLY];
+}
+
+// Network related configurations.
+message NetworkConfig {
+  // The name of the network for the TPU node. It must be a preexisting Google
+  // Compute Engine network. If none is provided, "default" will be used.
+  string network = 1;
+
+  // The name of the subnetwork for the TPU node. It must be a preexisting
+  // Google Compute Engine subnetwork. If none is provided, "default" will be
+  // used.
+  string subnetwork = 2;
+
+  // Indicates that external IP addresses would be associated with the TPU
+  // workers. If set to false, the specified subnetwork or network should have
+  // Private Google Access enabled.
+  bool enable_external_ips = 3;
+}
+
+// A service account.
+message ServiceAccount {
+  // Email address of the service account. If empty, default Compute service
+  // account will be used.
+  string email = 1;
+
+  // The list of scopes to be made available for this service account. If empty,
+  // access to all Cloud APIs will be allowed.
+  repeated string scope = 2;
+}
+
+// A TPU instance.
+message Node {
+  option (google.api.resource) = {
+    type: "tpu.googleapis.com/Node"
+    pattern: "projects/{project}/locations/{location}/nodes/{node}"
+  };
+
+  // Represents the different states of a TPU node during its lifecycle.
+  enum State {
+    // TPU node state is not known/set.
+    STATE_UNSPECIFIED = 0;
+
+    // TPU node is being created.
+    CREATING = 1;
+
+    // TPU node has been created.
+    READY = 2;
+
+    // TPU node is restarting.
+    RESTARTING = 3;
+
+    // TPU node is undergoing reimaging.
+    REIMAGING = 4;
+
+    // TPU node is being deleted.
+    DELETING = 5;
+
+    // TPU node is being repaired and may be unusable. Details can be
+    // found in the `help_description` field.
+    REPAIRING = 6;
+
+    // TPU node is stopped.
+    STOPPED = 8;
+
+    // TPU node is currently stopping.
+    STOPPING = 9;
+
+    // TPU node is currently starting.
+    STARTING = 10;
+
+    // TPU node has been preempted. Only applies to Preemptible TPU Nodes.
+    PREEMPTED = 11;
+
+    // TPU node has been terminated due to maintenance or has reached the end of
+    // its life cycle (for preemptible nodes).
+    TERMINATED = 12;
+
+    // TPU node is currently hiding.
+    HIDING = 13;
+
+    // TPU node has been hidden.
+    HIDDEN = 14;
+
+    // TPU node is currently unhiding.
+    UNHIDING = 15;
+  }
+
+  // Health defines the status of a TPU node as reported by
+  // Health Monitor.
+  enum Health {
+    // Health status is unknown: not initialized or failed to retrieve.
+    HEALTH_UNSPECIFIED = 0;
+
+    // The resource is healthy.
+    HEALTHY = 1;
+
+    // The resource is unresponsive.
+    TIMEOUT = 3;
+
+    // The in-guest ML stack is unhealthy.
+    UNHEALTHY_TENSORFLOW = 4;
+
+    // The node is under maintenance/priority boost caused rescheduling and
+    // will resume running once rescheduled.
+    UNHEALTHY_MAINTENANCE = 5;
+  }
+
+  // TPU API Version.
+  enum ApiVersion {
+    // API version is unknown.
+    API_VERSION_UNSPECIFIED = 0;
+
+    // TPU API V1Alpha1 version.
+    V1_ALPHA1 = 1;
+
+    // TPU API V1 version.
+    V1 = 2;
+
+    // TPU API V2Alpha1 version.
+    V2_ALPHA1 = 3;
+  }
+
+  // Output only. Immutable. The name of the TPU.
+  string name = 1 [
+    (google.api.field_behavior) = OUTPUT_ONLY,
+    (google.api.field_behavior) = IMMUTABLE
+  ];
+
+  // The user-supplied description of the TPU. Maximum of 512 characters.
+  string description = 3;
+
+  // Required. The type of hardware accelerators associated with this node.
+  string accelerator_type = 5 [(google.api.field_behavior) = REQUIRED];
+
+  // Output only. The current state for the TPU Node.
+  State state = 9 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Output only. If this field is populated, it contains a description of why
+  // the TPU Node is unhealthy.
+  string health_description = 10 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Required. The runtime version running in the Node.
+  string runtime_version = 11 [(google.api.field_behavior) = REQUIRED];
+
+  // Network configurations for the TPU node.
+  NetworkConfig network_config = 36;
+
+  // The CIDR block that the TPU node will use when selecting an IP address.
+  // This CIDR block must be a /29 block; the Compute Engine networks API
+  // forbids a smaller block, and using a larger block would be wasteful (a
+  // node can only consume one IP address). Errors will occur if the CIDR block
+  // has already been used for a currently existing TPU node, the CIDR block
+  // conflicts with any subnetworks in the user's provided network, or the
+  // provided network is peered with another network that is using that CIDR
+  // block.
+  string cidr_block = 13;
+
+  // The Google Cloud Platform Service Account to be used by the TPU node VMs.
+  // If None is specified, the default compute service account will be used.
+  ServiceAccount service_account = 37;
+
+  // Output only. The time when the node was created.
+  google.protobuf.Timestamp create_time = 16
+      [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // The scheduling options for this node.
+  SchedulingConfig scheduling_config = 17;
+
+  // Output only. The network endpoints where TPU workers can be accessed and
+  // sent work. It is recommended that runtime clients of the node reach out
+  // to the 0th entry in this map first.
+  repeated NetworkEndpoint network_endpoints = 21
+      [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // The health status of the TPU node.
+  Health health = 22;
+
+  // Resource labels to represent user-provided metadata.
+  map<string, string> labels = 24;
+
+  // Custom metadata to apply to the TPU Node.
+  // Can set startup-script and shutdown-script
+  map<string, string> metadata = 34;
+
+  // Tags to apply to the TPU Node. Tags are used to identify valid sources or
+  // targets for network firewalls.
+  repeated string tags = 40;
+
+  // Output only. The unique identifier for the TPU Node.
+  int64 id = 33 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // The additional data disks for the Node.
+  repeated AttachedDisk data_disks = 41;
+
+  // Output only. The API version that created this Node.
+  ApiVersion api_version = 38 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Output only. The Symptoms that have occurred to the TPU Node.
+  repeated Symptom symptoms = 39 [(google.api.field_behavior) = OUTPUT_ONLY];
+
+  // Shielded Instance options.
+  ShieldedInstanceConfig shielded_instance_config = 45;
+}
+
+// Request for [ListNodes][google.cloud.tpu.v2alpha1.Tpu.ListNodes].
+message ListNodesRequest {
+  // Required. The parent resource name.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = { type: "tpu.googleapis.com/Node" }
+  ];
+
+  // The maximum number of items to return.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous List request, if any.
+  string page_token = 3;
+}
+
+// Response for [ListNodes][google.cloud.tpu.v2alpha1.Tpu.ListNodes].
+message ListNodesResponse {
+  // The listed nodes.
+  repeated Node nodes = 1;
+
+  // The next page token or empty if none.
+  string next_page_token = 2;
+
+  // Locations that could not be reached.
+  repeated string unreachable = 3;
+}
+
+// Request for [GetNode][google.cloud.tpu.v2alpha1.Tpu.GetNode].
+message GetNodeRequest {
+  // Required. The resource name.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = { type: "tpu.googleapis.com/Node" }
+  ];
+}
+
+// Request for [CreateNode][google.cloud.tpu.v2alpha1.Tpu.CreateNode].
+message CreateNodeRequest {
+  // Required. The parent resource name.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "locations.googleapis.com/Location"
+    }
+  ];
+
+  // The unqualified resource name.
+  string node_id = 2;
+
+  // Required. The node.
+  Node node = 3 [(google.api.field_behavior) = REQUIRED];
+}
+
+// Request for [DeleteNode][google.cloud.tpu.v2alpha1.Tpu.DeleteNode].
+message DeleteNodeRequest {
+  // Required. The resource name.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = { type: "tpu.googleapis.com/Node" }
+  ];
+}
+
+// Request for [StopNode][google.cloud.tpu.v2alpha1.Tpu.StopNode].
+message StopNodeRequest {
+  // The resource name.
+  string name = 1;
+}
+
+// Request for [StartNode][google.cloud.tpu.v2alpha1.Tpu.StartNode].
+message StartNodeRequest {
+  // The resource name.
+  string name = 1;
+}
+
+// Request for [UpdateNode][google.cloud.tpu.v2alpha1.Tpu.UpdateNode].
+message UpdateNodeRequest {
+  // Required. Mask of fields from [Node][Tpu.Node] to update.
+  // Supported fields: None.
+  google.protobuf.FieldMask update_mask = 1
+      [(google.api.field_behavior) = REQUIRED];
+
+  // Required. The node. Only fields specified in update_mask are updated.
+  Node node = 2 [(google.api.field_behavior) = REQUIRED];
+}
+
+// The per-product per-project service identity for Cloud TPU service.
+message ServiceIdentity {
+  // The email address of the service identity.
+  string email = 1;
+}
+
+// Request for
+// [GenerateServiceIdentity][google.cloud.tpu.v2alpha1.Tpu.GenerateServiceIdentity].
+message GenerateServiceIdentityRequest {
+  // Required. The parent resource name.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "locations.googleapis.com/Location"
+    }
+  ];
+}
+
+// Response for
+// [GenerateServiceIdentity][google.cloud.tpu.v2alpha1.Tpu.GenerateServiceIdentity].
+message GenerateServiceIdentityResponse {
+  // ServiceIdentity that was created or retrieved.
+  ServiceIdentity identity = 1;
+}
+
+// A accelerator type that a Node can be configured with.
+message AcceleratorType {
+  option (google.api.resource) = {
+    type: "tpu.googleapis.com/AcceleratorType"
+    pattern: "projects/{project}/locations/{location}/acceleratorTypes/{accelerator_type}"
+  };
+
+  // The resource name.
+  string name = 1;
+
+  // the accelerator type.
+  string type = 2;
+}
+
+// Request for
+// [GetAcceleratorType][google.cloud.tpu.v2alpha1.Tpu.GetAcceleratorType].
+message GetAcceleratorTypeRequest {
+  // Required. The resource name.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "tpu.googleapis.com/AcceleratorType"
+    }
+  ];
+}
+
+// Request for
+// [ListAcceleratorTypes][google.cloud.tpu.v2alpha1.Tpu.ListAcceleratorTypes].
+message ListAcceleratorTypesRequest {
+  // Required. The parent resource name.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "tpu.googleapis.com/AcceleratorType"
+    }
+  ];
+
+  // The maximum number of items to return.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous List request, if any.
+  string page_token = 3;
+
+  // List filter.
+  string filter = 5;
+
+  // Sort results.
+  string order_by = 6;
+}
+
+// Response for
+// [ListAcceleratorTypes][google.cloud.tpu.v2alpha1.Tpu.ListAcceleratorTypes].
+message ListAcceleratorTypesResponse {
+  // The listed nodes.
+  repeated AcceleratorType accelerator_types = 1;
+
+  // The next page token or empty if none.
+  string next_page_token = 2;
+
+  // Locations that could not be reached.
+  repeated string unreachable = 3;
+}
+
+// Note: the following OperationMetadata message was added manually.
+// This is caused by a conflict with some other message and will
+// be resolved separately. Please make sure to add this message back
+// if it's removed during public proto regeneration.
+
+// Metadata describing an [Operation][google.longrunning.Operation]
+message OperationMetadata {
+  // The time the operation was created.
+  google.protobuf.Timestamp create_time = 1;
+
+  // The time the operation finished running.
+  google.protobuf.Timestamp end_time = 2;
+
+  // Target of the operation - for example
+  // projects/project-1/connectivityTests/test-1
+  string target = 3;
+
+  // Name of the verb executed by the operation.
+  string verb = 4;
+
+  // Human-readable status of the operation, if any.
+  string status_detail = 5;
+
+  // Specifies if cancellation was requested for the operation.
+  bool cancel_requested = 6;
+
+  // API version.
+  string api_version = 7;
+}
+
+// A runtime version that a Node can be configured with.
+message RuntimeVersion {
+  option (google.api.resource) = {
+    type: "tpu.googleapis.com/RuntimeVersion"
+    pattern: "projects/{project}/locations/{location}/runtimeVersions/{runtime_version}"
+  };
+
+  // The resource name.
+  string name = 1;
+
+  // The runtime version.
+  string version = 2;
+}
+
+// Request for
+// [GetRuntimeVersion][google.cloud.tpu.v2alpha1.Tpu.GetRuntimeVersion].
+message GetRuntimeVersionRequest {
+  // Required. The resource name.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "tpu.googleapis.com/RuntimeVersion"
+    }
+  ];
+}
+
+// Request for
+// [ListRuntimeVersions][google.cloud.tpu.v2alpha1.Tpu.ListRuntimeVersions].
+message ListRuntimeVersionsRequest {
+  // Required. The parent resource name.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "tpu.googleapis.com/RuntimeVersion"
+    }
+  ];
+
+  // The maximum number of items to return.
+  int32 page_size = 2;
+
+  // The next_page_token value returned from a previous List request, if any.
+  string page_token = 3;
+
+  // List filter.
+  string filter = 5;
+
+  // Sort results.
+  string order_by = 6;
+}
+
+// Response for
+// [ListRuntimeVersions][google.cloud.tpu.v2alpha1.Tpu.ListRuntimeVersions].
+message ListRuntimeVersionsResponse {
+  // The listed nodes.
+  repeated RuntimeVersion runtime_versions = 1;
+
+  // The next page token or empty if none.
+  string next_page_token = 2;
+
+  // Locations that could not be reached.
+  repeated string unreachable = 3;
+}
+
+// A Symptom instance.
+message Symptom {
+  // SymptomType represents the different types of Symptoms that a TPU can be
+  // at.
+  enum SymptomType {
+    // Unspecified symptom.
+    SYMPTOM_TYPE_UNSPECIFIED = 0;
+
+    // TPU VM memory is low.
+    LOW_MEMORY = 1;
+
+    // TPU runtime is out of memory.
+    OUT_OF_MEMORY = 2;
+
+    // TPU runtime execution has timed out.
+    EXECUTE_TIMED_OUT = 3;
+
+    // TPU runtime fails to construct a mesh that recognizes each TPU device's
+    // neighbors.
+    MESH_BUILD_FAIL = 4;
+
+    // TPU HBM is out of memory.
+    HBM_OUT_OF_MEMORY = 5;
+
+    // Abusive behaviors have been identified on the current project.
+    PROJECT_ABUSE = 6;
+  }
+
+  // Timestamp when the Symptom is created.
+  google.protobuf.Timestamp create_time = 1;
+
+  // Type of the Symptom.
+  SymptomType symptom_type = 2;
+
+  // Detailed information of the current Symptom.
+  string details = 3;
+
+  // A string used to uniquely distinguish a worker within a TPU node.
+  string worker_id = 4;
+}
+
+// Request for
+// [GetGuestAttributes][google.cloud.tpu.v2alpha1.Tpu.GetGuestAttributes].
+message GetGuestAttributesRequest {
+  // Required. The resource name.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = { type: "tpu.googleapis.com/Node" }
+  ];
+
+  // The guest attributes path to be queried.
+  string query_path = 2;
+
+  // The 0-based worker ID. If it is empty, all workers' GuestAttributes will be
+  // returned.
+  repeated string worker_ids = 3;
+}
+
+// Response for
+// [GetGuestAttributes][google.cloud.tpu.v2alpha1.Tpu.GetGuestAttributes].
+message GetGuestAttributesResponse {
+  // The guest attributes for the TPU workers.
+  repeated GuestAttributes guest_attributes = 1;
+}
+
+// A set of Shielded Instance options.
+message ShieldedInstanceConfig {
+  // Defines whether the instance has Secure Boot enabled.
+  bool enable_secure_boot = 1;
+}
\ No newline at end of file
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/stub/tpustubsettings/getnode/SyncGetNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/stub/tpustubsettings/getnode/SyncGetNode.java
new file mode 100644
index 000000000000..284d1d908741
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/stub/tpustubsettings/getnode/SyncGetNode.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.stub.samples;
+
+// [START tpu_v2alpha1_generated_tpustubsettings_getnode_sync]
+import com.google.cloud.tpu.v2alpha1.stub.TpuStubSettings;
+import java.time.Duration;
+
+public class SyncGetNode {
+
+  public static void main(String[] args) throws Exception {
+    syncGetNode();
+  }
+
+  public static void syncGetNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    TpuStubSettings.Builder tpuSettingsBuilder = TpuStubSettings.newBuilder();
+    tpuSettingsBuilder
+        .getNodeSettings()
+        .setRetrySettings(
+            tpuSettingsBuilder.getNodeSettings().getRetrySettings().toBuilder()
+                .setTotalTimeout(Duration.ofSeconds(30))
+                .build());
+    TpuStubSettings tpuSettings = tpuSettingsBuilder.build();
+  }
+}
+// [END tpu_v2alpha1_generated_tpustubsettings_getnode_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/create/SyncCreateSetCredentialsProvider.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/create/SyncCreateSetCredentialsProvider.java
new file mode 100644
index 000000000000..0d5337d79923
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/create/SyncCreateSetCredentialsProvider.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_create_setcredentialsprovider_sync]
+import com.google.api.gax.core.FixedCredentialsProvider;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import com.google.cloud.tpu.v2alpha1.TpuSettings;
+import com.google.cloud.tpu.v2alpha1.myCredentials;
+
+public class SyncCreateSetCredentialsProvider {
+
+  public static void main(String[] args) throws Exception {
+    syncCreateSetCredentialsProvider();
+  }
+
+  public static void syncCreateSetCredentialsProvider() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    TpuSettings tpuSettings =
+        TpuSettings.newBuilder()
+            .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
+            .build();
+    TpuClient tpuClient = TpuClient.create(tpuSettings);
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_create_setcredentialsprovider_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/create/SyncCreateSetEndpoint.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/create/SyncCreateSetEndpoint.java
new file mode 100644
index 000000000000..6dd505fdca01
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/create/SyncCreateSetEndpoint.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_create_setendpoint_sync]
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import com.google.cloud.tpu.v2alpha1.TpuSettings;
+import com.google.cloud.tpu.v2alpha1.myEndpoint;
+
+public class SyncCreateSetEndpoint {
+
+  public static void main(String[] args) throws Exception {
+    syncCreateSetEndpoint();
+  }
+
+  public static void syncCreateSetEndpoint() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    TpuSettings tpuSettings = TpuSettings.newBuilder().setEndpoint(myEndpoint).build();
+    TpuClient tpuClient = TpuClient.create(tpuSettings);
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_create_setendpoint_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/AsyncCreateNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/AsyncCreateNode.java
new file mode 100644
index 000000000000..7aebf5a05016
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/AsyncCreateNode.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_createnode_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v2alpha1.CreateNodeRequest;
+import com.google.cloud.tpu.v2alpha1.LocationName;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import com.google.longrunning.Operation;
+
+public class AsyncCreateNode {
+
+  public static void main(String[] args) throws Exception {
+    asyncCreateNode();
+  }
+
+  public static void asyncCreateNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      CreateNodeRequest request =
+          CreateNodeRequest.newBuilder()
+              .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+              .setNodeId("nodeId-1040171331")
+              .setNode(Node.newBuilder().build())
+              .build();
+      ApiFuture<Operation> future = tpuClient.createNodeCallable().futureCall(request);
+      // Do something.
+      Operation response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_createnode_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/AsyncCreateNodeLRO.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/AsyncCreateNodeLRO.java
new file mode 100644
index 000000000000..5d949942e44e
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/AsyncCreateNodeLRO.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_createnode_lro_async]
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.cloud.tpu.v2alpha1.CreateNodeRequest;
+import com.google.cloud.tpu.v2alpha1.LocationName;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.OperationMetadata;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class AsyncCreateNodeLRO {
+
+  public static void main(String[] args) throws Exception {
+    asyncCreateNodeLRO();
+  }
+
+  public static void asyncCreateNodeLRO() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      CreateNodeRequest request =
+          CreateNodeRequest.newBuilder()
+              .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+              .setNodeId("nodeId-1040171331")
+              .setNode(Node.newBuilder().build())
+              .build();
+      OperationFuture<Node, OperationMetadata> future =
+          tpuClient.createNodeOperationCallable().futureCall(request);
+      // Do something.
+      Node response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_createnode_lro_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/SyncCreateNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/SyncCreateNode.java
new file mode 100644
index 000000000000..9c67764c645e
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/SyncCreateNode.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_createnode_sync]
+import com.google.cloud.tpu.v2alpha1.CreateNodeRequest;
+import com.google.cloud.tpu.v2alpha1.LocationName;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncCreateNode {
+
+  public static void main(String[] args) throws Exception {
+    syncCreateNode();
+  }
+
+  public static void syncCreateNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      CreateNodeRequest request =
+          CreateNodeRequest.newBuilder()
+              .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+              .setNodeId("nodeId-1040171331")
+              .setNode(Node.newBuilder().build())
+              .build();
+      Node response = tpuClient.createNodeAsync(request).get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_createnode_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/SyncCreateNodeLocationnameNodeString.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/SyncCreateNodeLocationnameNodeString.java
new file mode 100644
index 000000000000..1591e3ea6657
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/SyncCreateNodeLocationnameNodeString.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_createnode_locationnamenodestring_sync]
+import com.google.cloud.tpu.v2alpha1.LocationName;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncCreateNodeLocationnameNodeString {
+
+  public static void main(String[] args) throws Exception {
+    syncCreateNodeLocationnameNodeString();
+  }
+
+  public static void syncCreateNodeLocationnameNodeString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      LocationName parent = LocationName.of("[PROJECT]", "[LOCATION]");
+      Node node = Node.newBuilder().build();
+      String nodeId = "nodeId-1040171331";
+      Node response = tpuClient.createNodeAsync(parent, node, nodeId).get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_createnode_locationnamenodestring_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/SyncCreateNodeStringNodeString.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/SyncCreateNodeStringNodeString.java
new file mode 100644
index 000000000000..070563aec17e
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/createnode/SyncCreateNodeStringNodeString.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_createnode_stringnodestring_sync]
+import com.google.cloud.tpu.v2alpha1.LocationName;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncCreateNodeStringNodeString {
+
+  public static void main(String[] args) throws Exception {
+    syncCreateNodeStringNodeString();
+  }
+
+  public static void syncCreateNodeStringNodeString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String parent = LocationName.of("[PROJECT]", "[LOCATION]").toString();
+      Node node = Node.newBuilder().build();
+      String nodeId = "nodeId-1040171331";
+      Node response = tpuClient.createNodeAsync(parent, node, nodeId).get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_createnode_stringnodestring_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/AsyncDeleteNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/AsyncDeleteNode.java
new file mode 100644
index 000000000000..b835a28aa180
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/AsyncDeleteNode.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_deletenode_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v2alpha1.DeleteNodeRequest;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import com.google.longrunning.Operation;
+
+public class AsyncDeleteNode {
+
+  public static void main(String[] args) throws Exception {
+    asyncDeleteNode();
+  }
+
+  public static void asyncDeleteNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      DeleteNodeRequest request =
+          DeleteNodeRequest.newBuilder()
+              .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .build();
+      ApiFuture<Operation> future = tpuClient.deleteNodeCallable().futureCall(request);
+      // Do something.
+      Operation response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_deletenode_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/AsyncDeleteNodeLRO.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/AsyncDeleteNodeLRO.java
new file mode 100644
index 000000000000..cab1b4b6e219
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/AsyncDeleteNodeLRO.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_deletenode_lro_async]
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.cloud.tpu.v2alpha1.DeleteNodeRequest;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.OperationMetadata;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class AsyncDeleteNodeLRO {
+
+  public static void main(String[] args) throws Exception {
+    asyncDeleteNodeLRO();
+  }
+
+  public static void asyncDeleteNodeLRO() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      DeleteNodeRequest request =
+          DeleteNodeRequest.newBuilder()
+              .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .build();
+      OperationFuture<Node, OperationMetadata> future =
+          tpuClient.deleteNodeOperationCallable().futureCall(request);
+      // Do something.
+      Node response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_deletenode_lro_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/SyncDeleteNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/SyncDeleteNode.java
new file mode 100644
index 000000000000..5f510d5f433c
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/SyncDeleteNode.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_deletenode_sync]
+import com.google.cloud.tpu.v2alpha1.DeleteNodeRequest;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncDeleteNode {
+
+  public static void main(String[] args) throws Exception {
+    syncDeleteNode();
+  }
+
+  public static void syncDeleteNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      DeleteNodeRequest request =
+          DeleteNodeRequest.newBuilder()
+              .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .build();
+      Node response = tpuClient.deleteNodeAsync(request).get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_deletenode_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/SyncDeleteNodeNodename.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/SyncDeleteNodeNodename.java
new file mode 100644
index 000000000000..6ceb4b8c774e
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/SyncDeleteNodeNodename.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_deletenode_nodename_sync]
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncDeleteNodeNodename {
+
+  public static void main(String[] args) throws Exception {
+    syncDeleteNodeNodename();
+  }
+
+  public static void syncDeleteNodeNodename() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+      Node response = tpuClient.deleteNodeAsync(name).get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_deletenode_nodename_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/SyncDeleteNodeString.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/SyncDeleteNodeString.java
new file mode 100644
index 000000000000..b4d17cd5498e
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/deletenode/SyncDeleteNodeString.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_deletenode_string_sync]
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncDeleteNodeString {
+
+  public static void main(String[] args) throws Exception {
+    syncDeleteNodeString();
+  }
+
+  public static void syncDeleteNodeString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString();
+      Node response = tpuClient.deleteNodeAsync(name).get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_deletenode_string_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/generateserviceidentity/AsyncGenerateServiceIdentity.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/generateserviceidentity/AsyncGenerateServiceIdentity.java
new file mode 100644
index 000000000000..8ceafe852fc6
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/generateserviceidentity/AsyncGenerateServiceIdentity.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_generateserviceidentity_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest;
+import com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse;
+import com.google.cloud.tpu.v2alpha1.LocationName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class AsyncGenerateServiceIdentity {
+
+  public static void main(String[] args) throws Exception {
+    asyncGenerateServiceIdentity();
+  }
+
+  public static void asyncGenerateServiceIdentity() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GenerateServiceIdentityRequest request =
+          GenerateServiceIdentityRequest.newBuilder()
+              .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+              .build();
+      ApiFuture<GenerateServiceIdentityResponse> future =
+          tpuClient.generateServiceIdentityCallable().futureCall(request);
+      // Do something.
+      GenerateServiceIdentityResponse response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_generateserviceidentity_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/generateserviceidentity/SyncGenerateServiceIdentity.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/generateserviceidentity/SyncGenerateServiceIdentity.java
new file mode 100644
index 000000000000..31e6bbcc50f3
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/generateserviceidentity/SyncGenerateServiceIdentity.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_generateserviceidentity_sync]
+import com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityRequest;
+import com.google.cloud.tpu.v2alpha1.GenerateServiceIdentityResponse;
+import com.google.cloud.tpu.v2alpha1.LocationName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncGenerateServiceIdentity {
+
+  public static void main(String[] args) throws Exception {
+    syncGenerateServiceIdentity();
+  }
+
+  public static void syncGenerateServiceIdentity() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GenerateServiceIdentityRequest request =
+          GenerateServiceIdentityRequest.newBuilder()
+              .setParent(LocationName.of("[PROJECT]", "[LOCATION]").toString())
+              .build();
+      GenerateServiceIdentityResponse response = tpuClient.generateServiceIdentity(request);
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_generateserviceidentity_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getacceleratortype/AsyncGetAcceleratorType.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getacceleratortype/AsyncGetAcceleratorType.java
new file mode 100644
index 000000000000..28dd94e76fec
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getacceleratortype/AsyncGetAcceleratorType.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getacceleratortype_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v2alpha1.AcceleratorType;
+import com.google.cloud.tpu.v2alpha1.AcceleratorTypeName;
+import com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class AsyncGetAcceleratorType {
+
+  public static void main(String[] args) throws Exception {
+    asyncGetAcceleratorType();
+  }
+
+  public static void asyncGetAcceleratorType() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetAcceleratorTypeRequest request =
+          GetAcceleratorTypeRequest.newBuilder()
+              .setName(
+                  AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+                      .toString())
+              .build();
+      ApiFuture<AcceleratorType> future =
+          tpuClient.getAcceleratorTypeCallable().futureCall(request);
+      // Do something.
+      AcceleratorType response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getacceleratortype_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getacceleratortype/SyncGetAcceleratorType.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getacceleratortype/SyncGetAcceleratorType.java
new file mode 100644
index 000000000000..1740eb187f2c
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getacceleratortype/SyncGetAcceleratorType.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getacceleratortype_sync]
+import com.google.cloud.tpu.v2alpha1.AcceleratorType;
+import com.google.cloud.tpu.v2alpha1.AcceleratorTypeName;
+import com.google.cloud.tpu.v2alpha1.GetAcceleratorTypeRequest;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncGetAcceleratorType {
+
+  public static void main(String[] args) throws Exception {
+    syncGetAcceleratorType();
+  }
+
+  public static void syncGetAcceleratorType() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetAcceleratorTypeRequest request =
+          GetAcceleratorTypeRequest.newBuilder()
+              .setName(
+                  AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+                      .toString())
+              .build();
+      AcceleratorType response = tpuClient.getAcceleratorType(request);
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getacceleratortype_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getacceleratortype/SyncGetAcceleratorTypeAcceleratortypename.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getacceleratortype/SyncGetAcceleratorTypeAcceleratortypename.java
new file mode 100644
index 000000000000..94ed84fa7894
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getacceleratortype/SyncGetAcceleratorTypeAcceleratortypename.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getacceleratortype_acceleratortypename_sync]
+import com.google.cloud.tpu.v2alpha1.AcceleratorType;
+import com.google.cloud.tpu.v2alpha1.AcceleratorTypeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncGetAcceleratorTypeAcceleratortypename {
+
+  public static void main(String[] args) throws Exception {
+    syncGetAcceleratorTypeAcceleratortypename();
+  }
+
+  public static void syncGetAcceleratorTypeAcceleratortypename() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      AcceleratorTypeName name =
+          AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+      AcceleratorType response = tpuClient.getAcceleratorType(name);
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getacceleratortype_acceleratortypename_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getacceleratortype/SyncGetAcceleratorTypeString.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getacceleratortype/SyncGetAcceleratorTypeString.java
new file mode 100644
index 000000000000..4949842c6d33
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getacceleratortype/SyncGetAcceleratorTypeString.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getacceleratortype_string_sync]
+import com.google.cloud.tpu.v2alpha1.AcceleratorType;
+import com.google.cloud.tpu.v2alpha1.AcceleratorTypeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncGetAcceleratorTypeString {
+
+  public static void main(String[] args) throws Exception {
+    syncGetAcceleratorTypeString();
+  }
+
+  public static void syncGetAcceleratorTypeString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String name =
+          AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]").toString();
+      AcceleratorType response = tpuClient.getAcceleratorType(name);
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getacceleratortype_string_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getguestattributes/AsyncGetGuestAttributes.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getguestattributes/AsyncGetGuestAttributes.java
new file mode 100644
index 000000000000..69c495518d84
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getguestattributes/AsyncGetGuestAttributes.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getguestattributes_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest;
+import com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import java.util.ArrayList;
+
+public class AsyncGetGuestAttributes {
+
+  public static void main(String[] args) throws Exception {
+    asyncGetGuestAttributes();
+  }
+
+  public static void asyncGetGuestAttributes() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetGuestAttributesRequest request =
+          GetGuestAttributesRequest.newBuilder()
+              .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .setQueryPath("queryPath-1807004403")
+              .addAllWorkerIds(new ArrayList<String>())
+              .build();
+      ApiFuture<GetGuestAttributesResponse> future =
+          tpuClient.getGuestAttributesCallable().futureCall(request);
+      // Do something.
+      GetGuestAttributesResponse response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getguestattributes_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getguestattributes/SyncGetGuestAttributes.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getguestattributes/SyncGetGuestAttributes.java
new file mode 100644
index 000000000000..23645d3abfab
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getguestattributes/SyncGetGuestAttributes.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getguestattributes_sync]
+import com.google.cloud.tpu.v2alpha1.GetGuestAttributesRequest;
+import com.google.cloud.tpu.v2alpha1.GetGuestAttributesResponse;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import java.util.ArrayList;
+
+public class SyncGetGuestAttributes {
+
+  public static void main(String[] args) throws Exception {
+    syncGetGuestAttributes();
+  }
+
+  public static void syncGetGuestAttributes() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetGuestAttributesRequest request =
+          GetGuestAttributesRequest.newBuilder()
+              .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .setQueryPath("queryPath-1807004403")
+              .addAllWorkerIds(new ArrayList<String>())
+              .build();
+      GetGuestAttributesResponse response = tpuClient.getGuestAttributes(request);
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getguestattributes_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getnode/AsyncGetNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getnode/AsyncGetNode.java
new file mode 100644
index 000000000000..693d916d8fc8
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getnode/AsyncGetNode.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getnode_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v2alpha1.GetNodeRequest;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class AsyncGetNode {
+
+  public static void main(String[] args) throws Exception {
+    asyncGetNode();
+  }
+
+  public static void asyncGetNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetNodeRequest request =
+          GetNodeRequest.newBuilder()
+              .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .build();
+      ApiFuture<Node> future = tpuClient.getNodeCallable().futureCall(request);
+      // Do something.
+      Node response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getnode_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getnode/SyncGetNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getnode/SyncGetNode.java
new file mode 100644
index 000000000000..6c58807c2106
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getnode/SyncGetNode.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getnode_sync]
+import com.google.cloud.tpu.v2alpha1.GetNodeRequest;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncGetNode {
+
+  public static void main(String[] args) throws Exception {
+    syncGetNode();
+  }
+
+  public static void syncGetNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetNodeRequest request =
+          GetNodeRequest.newBuilder()
+              .setName(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .build();
+      Node response = tpuClient.getNode(request);
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getnode_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getnode/SyncGetNodeNodename.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getnode/SyncGetNodeNodename.java
new file mode 100644
index 000000000000..64aebf223ed8
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getnode/SyncGetNodeNodename.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getnode_nodename_sync]
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncGetNodeNodename {
+
+  public static void main(String[] args) throws Exception {
+    syncGetNodeNodename();
+  }
+
+  public static void syncGetNodeNodename() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      NodeName name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+      Node response = tpuClient.getNode(name);
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getnode_nodename_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getnode/SyncGetNodeString.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getnode/SyncGetNodeString.java
new file mode 100644
index 000000000000..7841a99ab661
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getnode/SyncGetNodeString.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getnode_string_sync]
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncGetNodeString {
+
+  public static void main(String[] args) throws Exception {
+    syncGetNodeString();
+  }
+
+  public static void syncGetNodeString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String name = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString();
+      Node response = tpuClient.getNode(name);
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getnode_string_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getruntimeversion/AsyncGetRuntimeVersion.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getruntimeversion/AsyncGetRuntimeVersion.java
new file mode 100644
index 000000000000..d694da43caeb
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getruntimeversion/AsyncGetRuntimeVersion.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getruntimeversion_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersion;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersionName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class AsyncGetRuntimeVersion {
+
+  public static void main(String[] args) throws Exception {
+    asyncGetRuntimeVersion();
+  }
+
+  public static void asyncGetRuntimeVersion() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetRuntimeVersionRequest request =
+          GetRuntimeVersionRequest.newBuilder()
+              .setName(
+                  RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString())
+              .build();
+      ApiFuture<RuntimeVersion> future = tpuClient.getRuntimeVersionCallable().futureCall(request);
+      // Do something.
+      RuntimeVersion response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getruntimeversion_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getruntimeversion/SyncGetRuntimeVersion.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getruntimeversion/SyncGetRuntimeVersion.java
new file mode 100644
index 000000000000..bfbbf288ffc6
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getruntimeversion/SyncGetRuntimeVersion.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getruntimeversion_sync]
+import com.google.cloud.tpu.v2alpha1.GetRuntimeVersionRequest;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersion;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersionName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncGetRuntimeVersion {
+
+  public static void main(String[] args) throws Exception {
+    syncGetRuntimeVersion();
+  }
+
+  public static void syncGetRuntimeVersion() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      GetRuntimeVersionRequest request =
+          GetRuntimeVersionRequest.newBuilder()
+              .setName(
+                  RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString())
+              .build();
+      RuntimeVersion response = tpuClient.getRuntimeVersion(request);
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getruntimeversion_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getruntimeversion/SyncGetRuntimeVersionRuntimeversionname.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getruntimeversion/SyncGetRuntimeVersionRuntimeversionname.java
new file mode 100644
index 000000000000..181c01f77b7b
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getruntimeversion/SyncGetRuntimeVersionRuntimeversionname.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getruntimeversion_runtimeversionname_sync]
+import com.google.cloud.tpu.v2alpha1.RuntimeVersion;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersionName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncGetRuntimeVersionRuntimeversionname {
+
+  public static void main(String[] args) throws Exception {
+    syncGetRuntimeVersionRuntimeversionname();
+  }
+
+  public static void syncGetRuntimeVersionRuntimeversionname() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      RuntimeVersionName name =
+          RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]");
+      RuntimeVersion response = tpuClient.getRuntimeVersion(name);
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getruntimeversion_runtimeversionname_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getruntimeversion/SyncGetRuntimeVersionString.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getruntimeversion/SyncGetRuntimeVersionString.java
new file mode 100644
index 000000000000..92c96e65fff9
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/getruntimeversion/SyncGetRuntimeVersionString.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_getruntimeversion_string_sync]
+import com.google.cloud.tpu.v2alpha1.RuntimeVersion;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersionName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncGetRuntimeVersionString {
+
+  public static void main(String[] args) throws Exception {
+    syncGetRuntimeVersionString();
+  }
+
+  public static void syncGetRuntimeVersionString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String name =
+          RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString();
+      RuntimeVersion response = tpuClient.getRuntimeVersion(name);
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_getruntimeversion_string_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/AsyncListAcceleratorTypes.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/AsyncListAcceleratorTypes.java
new file mode 100644
index 000000000000..8d1337fd6b43
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/AsyncListAcceleratorTypes.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listacceleratortypes_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v2alpha1.AcceleratorType;
+import com.google.cloud.tpu.v2alpha1.AcceleratorTypeName;
+import com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class AsyncListAcceleratorTypes {
+
+  public static void main(String[] args) throws Exception {
+    asyncListAcceleratorTypes();
+  }
+
+  public static void asyncListAcceleratorTypes() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListAcceleratorTypesRequest request =
+          ListAcceleratorTypesRequest.newBuilder()
+              .setParent(
+                  AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+                      .toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .setFilter("filter-1274492040")
+              .setOrderBy("orderBy-1207110587")
+              .build();
+      ApiFuture<AcceleratorType> future =
+          tpuClient.listAcceleratorTypesPagedCallable().futureCall(request);
+      // Do something.
+      for (AcceleratorType element : future.get().iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listacceleratortypes_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/AsyncListAcceleratorTypesPaged.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/AsyncListAcceleratorTypesPaged.java
new file mode 100644
index 000000000000..5dbe6d57c530
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/AsyncListAcceleratorTypesPaged.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listacceleratortypes_paged_async]
+import com.google.cloud.tpu.v2alpha1.AcceleratorType;
+import com.google.cloud.tpu.v2alpha1.AcceleratorTypeName;
+import com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest;
+import com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesResponse;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import com.google.common.base.Strings;
+
+public class AsyncListAcceleratorTypesPaged {
+
+  public static void main(String[] args) throws Exception {
+    asyncListAcceleratorTypesPaged();
+  }
+
+  public static void asyncListAcceleratorTypesPaged() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListAcceleratorTypesRequest request =
+          ListAcceleratorTypesRequest.newBuilder()
+              .setParent(
+                  AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+                      .toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .setFilter("filter-1274492040")
+              .setOrderBy("orderBy-1207110587")
+              .build();
+      while (true) {
+        ListAcceleratorTypesResponse response =
+            tpuClient.listAcceleratorTypesCallable().call(request);
+        for (AcceleratorType element : response.getAcceleratorTypesList()) {
+          // doThingsWith(element);
+        }
+        String nextPageToken = response.getNextPageToken();
+        if (!Strings.isNullOrEmpty(nextPageToken)) {
+          request = request.toBuilder().setPageToken(nextPageToken).build();
+        } else {
+          break;
+        }
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listacceleratortypes_paged_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/SyncListAcceleratorTypes.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/SyncListAcceleratorTypes.java
new file mode 100644
index 000000000000..d35e98f15ec6
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/SyncListAcceleratorTypes.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listacceleratortypes_sync]
+import com.google.cloud.tpu.v2alpha1.AcceleratorType;
+import com.google.cloud.tpu.v2alpha1.AcceleratorTypeName;
+import com.google.cloud.tpu.v2alpha1.ListAcceleratorTypesRequest;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncListAcceleratorTypes {
+
+  public static void main(String[] args) throws Exception {
+    syncListAcceleratorTypes();
+  }
+
+  public static void syncListAcceleratorTypes() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListAcceleratorTypesRequest request =
+          ListAcceleratorTypesRequest.newBuilder()
+              .setParent(
+                  AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]")
+                      .toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .setFilter("filter-1274492040")
+              .setOrderBy("orderBy-1207110587")
+              .build();
+      for (AcceleratorType element : tpuClient.listAcceleratorTypes(request).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listacceleratortypes_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/SyncListAcceleratorTypesAcceleratortypename.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/SyncListAcceleratorTypesAcceleratortypename.java
new file mode 100644
index 000000000000..5d4012985d4d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/SyncListAcceleratorTypesAcceleratortypename.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listacceleratortypes_acceleratortypename_sync]
+import com.google.cloud.tpu.v2alpha1.AcceleratorType;
+import com.google.cloud.tpu.v2alpha1.AcceleratorTypeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncListAcceleratorTypesAcceleratortypename {
+
+  public static void main(String[] args) throws Exception {
+    syncListAcceleratorTypesAcceleratortypename();
+  }
+
+  public static void syncListAcceleratorTypesAcceleratortypename() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      AcceleratorTypeName parent =
+          AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]");
+      for (AcceleratorType element : tpuClient.listAcceleratorTypes(parent).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listacceleratortypes_acceleratortypename_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/SyncListAcceleratorTypesString.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/SyncListAcceleratorTypesString.java
new file mode 100644
index 000000000000..6db1d55b293e
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listacceleratortypes/SyncListAcceleratorTypesString.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listacceleratortypes_string_sync]
+import com.google.cloud.tpu.v2alpha1.AcceleratorType;
+import com.google.cloud.tpu.v2alpha1.AcceleratorTypeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncListAcceleratorTypesString {
+
+  public static void main(String[] args) throws Exception {
+    syncListAcceleratorTypesString();
+  }
+
+  public static void syncListAcceleratorTypesString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String parent =
+          AcceleratorTypeName.of("[PROJECT]", "[LOCATION]", "[ACCELERATOR_TYPE]").toString();
+      for (AcceleratorType element : tpuClient.listAcceleratorTypes(parent).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listacceleratortypes_string_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/AsyncListNodes.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/AsyncListNodes.java
new file mode 100644
index 000000000000..dd2ebcb7937d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/AsyncListNodes.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listnodes_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v2alpha1.ListNodesRequest;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class AsyncListNodes {
+
+  public static void main(String[] args) throws Exception {
+    asyncListNodes();
+  }
+
+  public static void asyncListNodes() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListNodesRequest request =
+          ListNodesRequest.newBuilder()
+              .setParent(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .build();
+      ApiFuture<Node> future = tpuClient.listNodesPagedCallable().futureCall(request);
+      // Do something.
+      for (Node element : future.get().iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listnodes_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/AsyncListNodesPaged.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/AsyncListNodesPaged.java
new file mode 100644
index 000000000000..87f07997e785
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/AsyncListNodesPaged.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listnodes_paged_async]
+import com.google.cloud.tpu.v2alpha1.ListNodesRequest;
+import com.google.cloud.tpu.v2alpha1.ListNodesResponse;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import com.google.common.base.Strings;
+
+public class AsyncListNodesPaged {
+
+  public static void main(String[] args) throws Exception {
+    asyncListNodesPaged();
+  }
+
+  public static void asyncListNodesPaged() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListNodesRequest request =
+          ListNodesRequest.newBuilder()
+              .setParent(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .build();
+      while (true) {
+        ListNodesResponse response = tpuClient.listNodesCallable().call(request);
+        for (Node element : response.getNodesList()) {
+          // doThingsWith(element);
+        }
+        String nextPageToken = response.getNextPageToken();
+        if (!Strings.isNullOrEmpty(nextPageToken)) {
+          request = request.toBuilder().setPageToken(nextPageToken).build();
+        } else {
+          break;
+        }
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listnodes_paged_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/SyncListNodes.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/SyncListNodes.java
new file mode 100644
index 000000000000..adf0bf8bb185
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/SyncListNodes.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listnodes_sync]
+import com.google.cloud.tpu.v2alpha1.ListNodesRequest;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncListNodes {
+
+  public static void main(String[] args) throws Exception {
+    syncListNodes();
+  }
+
+  public static void syncListNodes() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListNodesRequest request =
+          ListNodesRequest.newBuilder()
+              .setParent(NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .build();
+      for (Node element : tpuClient.listNodes(request).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listnodes_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/SyncListNodesNodename.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/SyncListNodesNodename.java
new file mode 100644
index 000000000000..fdccc3a23888
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/SyncListNodesNodename.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listnodes_nodename_sync]
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncListNodesNodename {
+
+  public static void main(String[] args) throws Exception {
+    syncListNodesNodename();
+  }
+
+  public static void syncListNodesNodename() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      NodeName parent = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]");
+      for (Node element : tpuClient.listNodes(parent).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listnodes_nodename_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/SyncListNodesString.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/SyncListNodesString.java
new file mode 100644
index 000000000000..528798a43c21
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listnodes/SyncListNodesString.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listnodes_string_sync]
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.NodeName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncListNodesString {
+
+  public static void main(String[] args) throws Exception {
+    syncListNodesString();
+  }
+
+  public static void syncListNodesString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String parent = NodeName.of("[PROJECT]", "[LOCATION]", "[NODE]").toString();
+      for (Node element : tpuClient.listNodes(parent).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listnodes_string_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/AsyncListRuntimeVersions.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/AsyncListRuntimeVersions.java
new file mode 100644
index 000000000000..274d7ea22a48
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/AsyncListRuntimeVersions.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listruntimeversions_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersion;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersionName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class AsyncListRuntimeVersions {
+
+  public static void main(String[] args) throws Exception {
+    asyncListRuntimeVersions();
+  }
+
+  public static void asyncListRuntimeVersions() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListRuntimeVersionsRequest request =
+          ListRuntimeVersionsRequest.newBuilder()
+              .setParent(
+                  RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .setFilter("filter-1274492040")
+              .setOrderBy("orderBy-1207110587")
+              .build();
+      ApiFuture<RuntimeVersion> future =
+          tpuClient.listRuntimeVersionsPagedCallable().futureCall(request);
+      // Do something.
+      for (RuntimeVersion element : future.get().iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listruntimeversions_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/AsyncListRuntimeVersionsPaged.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/AsyncListRuntimeVersionsPaged.java
new file mode 100644
index 000000000000..c2b443aa1b36
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/AsyncListRuntimeVersionsPaged.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listruntimeversions_paged_async]
+import com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest;
+import com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsResponse;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersion;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersionName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import com.google.common.base.Strings;
+
+public class AsyncListRuntimeVersionsPaged {
+
+  public static void main(String[] args) throws Exception {
+    asyncListRuntimeVersionsPaged();
+  }
+
+  public static void asyncListRuntimeVersionsPaged() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListRuntimeVersionsRequest request =
+          ListRuntimeVersionsRequest.newBuilder()
+              .setParent(
+                  RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .setFilter("filter-1274492040")
+              .setOrderBy("orderBy-1207110587")
+              .build();
+      while (true) {
+        ListRuntimeVersionsResponse response =
+            tpuClient.listRuntimeVersionsCallable().call(request);
+        for (RuntimeVersion element : response.getRuntimeVersionsList()) {
+          // doThingsWith(element);
+        }
+        String nextPageToken = response.getNextPageToken();
+        if (!Strings.isNullOrEmpty(nextPageToken)) {
+          request = request.toBuilder().setPageToken(nextPageToken).build();
+        } else {
+          break;
+        }
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listruntimeversions_paged_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/SyncListRuntimeVersions.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/SyncListRuntimeVersions.java
new file mode 100644
index 000000000000..b411994e46e2
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/SyncListRuntimeVersions.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listruntimeversions_sync]
+import com.google.cloud.tpu.v2alpha1.ListRuntimeVersionsRequest;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersion;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersionName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncListRuntimeVersions {
+
+  public static void main(String[] args) throws Exception {
+    syncListRuntimeVersions();
+  }
+
+  public static void syncListRuntimeVersions() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      ListRuntimeVersionsRequest request =
+          ListRuntimeVersionsRequest.newBuilder()
+              .setParent(
+                  RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString())
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .setFilter("filter-1274492040")
+              .setOrderBy("orderBy-1207110587")
+              .build();
+      for (RuntimeVersion element : tpuClient.listRuntimeVersions(request).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listruntimeversions_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/SyncListRuntimeVersionsRuntimeversionname.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/SyncListRuntimeVersionsRuntimeversionname.java
new file mode 100644
index 000000000000..a336a9ed42a2
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/SyncListRuntimeVersionsRuntimeversionname.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listruntimeversions_runtimeversionname_sync]
+import com.google.cloud.tpu.v2alpha1.RuntimeVersion;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersionName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncListRuntimeVersionsRuntimeversionname {
+
+  public static void main(String[] args) throws Exception {
+    syncListRuntimeVersionsRuntimeversionname();
+  }
+
+  public static void syncListRuntimeVersionsRuntimeversionname() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      RuntimeVersionName parent =
+          RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]");
+      for (RuntimeVersion element : tpuClient.listRuntimeVersions(parent).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listruntimeversions_runtimeversionname_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/SyncListRuntimeVersionsString.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/SyncListRuntimeVersionsString.java
new file mode 100644
index 000000000000..06ff8ba197dc
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/listruntimeversions/SyncListRuntimeVersionsString.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_listruntimeversions_string_sync]
+import com.google.cloud.tpu.v2alpha1.RuntimeVersion;
+import com.google.cloud.tpu.v2alpha1.RuntimeVersionName;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncListRuntimeVersionsString {
+
+  public static void main(String[] args) throws Exception {
+    syncListRuntimeVersionsString();
+  }
+
+  public static void syncListRuntimeVersionsString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      String parent =
+          RuntimeVersionName.of("[PROJECT]", "[LOCATION]", "[RUNTIME_VERSION]").toString();
+      for (RuntimeVersion element : tpuClient.listRuntimeVersions(parent).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_listruntimeversions_string_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/startnode/AsyncStartNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/startnode/AsyncStartNode.java
new file mode 100644
index 000000000000..00ed6e6cb73a
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/startnode/AsyncStartNode.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_startnode_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v2alpha1.StartNodeRequest;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import com.google.longrunning.Operation;
+
+public class AsyncStartNode {
+
+  public static void main(String[] args) throws Exception {
+    asyncStartNode();
+  }
+
+  public static void asyncStartNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+      ApiFuture<Operation> future = tpuClient.startNodeCallable().futureCall(request);
+      // Do something.
+      Operation response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_startnode_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/startnode/AsyncStartNodeLRO.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/startnode/AsyncStartNodeLRO.java
new file mode 100644
index 000000000000..d019038fb54e
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/startnode/AsyncStartNodeLRO.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_startnode_lro_async]
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.OperationMetadata;
+import com.google.cloud.tpu.v2alpha1.StartNodeRequest;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class AsyncStartNodeLRO {
+
+  public static void main(String[] args) throws Exception {
+    asyncStartNodeLRO();
+  }
+
+  public static void asyncStartNodeLRO() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+      OperationFuture<Node, OperationMetadata> future =
+          tpuClient.startNodeOperationCallable().futureCall(request);
+      // Do something.
+      Node response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_startnode_lro_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/startnode/SyncStartNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/startnode/SyncStartNode.java
new file mode 100644
index 000000000000..221c0eb2add2
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/startnode/SyncStartNode.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_startnode_sync]
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.StartNodeRequest;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncStartNode {
+
+  public static void main(String[] args) throws Exception {
+    syncStartNode();
+  }
+
+  public static void syncStartNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      StartNodeRequest request = StartNodeRequest.newBuilder().setName("name3373707").build();
+      Node response = tpuClient.startNodeAsync(request).get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_startnode_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/stopnode/AsyncStopNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/stopnode/AsyncStopNode.java
new file mode 100644
index 000000000000..b87767742c2d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/stopnode/AsyncStopNode.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_stopnode_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v2alpha1.StopNodeRequest;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import com.google.longrunning.Operation;
+
+public class AsyncStopNode {
+
+  public static void main(String[] args) throws Exception {
+    asyncStopNode();
+  }
+
+  public static void asyncStopNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+      ApiFuture<Operation> future = tpuClient.stopNodeCallable().futureCall(request);
+      // Do something.
+      Operation response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_stopnode_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/stopnode/AsyncStopNodeLRO.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/stopnode/AsyncStopNodeLRO.java
new file mode 100644
index 000000000000..d81e1656d1a0
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/stopnode/AsyncStopNodeLRO.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_stopnode_lro_async]
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.OperationMetadata;
+import com.google.cloud.tpu.v2alpha1.StopNodeRequest;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class AsyncStopNodeLRO {
+
+  public static void main(String[] args) throws Exception {
+    asyncStopNodeLRO();
+  }
+
+  public static void asyncStopNodeLRO() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+      OperationFuture<Node, OperationMetadata> future =
+          tpuClient.stopNodeOperationCallable().futureCall(request);
+      // Do something.
+      Node response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_stopnode_lro_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/stopnode/SyncStopNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/stopnode/SyncStopNode.java
new file mode 100644
index 000000000000..46b321325163
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/stopnode/SyncStopNode.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_stopnode_sync]
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.StopNodeRequest;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+
+public class SyncStopNode {
+
+  public static void main(String[] args) throws Exception {
+    syncStopNode();
+  }
+
+  public static void syncStopNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      StopNodeRequest request = StopNodeRequest.newBuilder().setName("name3373707").build();
+      Node response = tpuClient.stopNodeAsync(request).get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_stopnode_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/updatenode/AsyncUpdateNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/updatenode/AsyncUpdateNode.java
new file mode 100644
index 000000000000..b743abe71ac2
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/updatenode/AsyncUpdateNode.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_updatenode_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import com.google.cloud.tpu.v2alpha1.UpdateNodeRequest;
+import com.google.longrunning.Operation;
+import com.google.protobuf.FieldMask;
+
+public class AsyncUpdateNode {
+
+  public static void main(String[] args) throws Exception {
+    asyncUpdateNode();
+  }
+
+  public static void asyncUpdateNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      UpdateNodeRequest request =
+          UpdateNodeRequest.newBuilder()
+              .setUpdateMask(FieldMask.newBuilder().build())
+              .setNode(Node.newBuilder().build())
+              .build();
+      ApiFuture<Operation> future = tpuClient.updateNodeCallable().futureCall(request);
+      // Do something.
+      Operation response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_updatenode_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/updatenode/AsyncUpdateNodeLRO.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/updatenode/AsyncUpdateNodeLRO.java
new file mode 100644
index 000000000000..390c057518b9
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/updatenode/AsyncUpdateNodeLRO.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_updatenode_lro_async]
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.OperationMetadata;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import com.google.cloud.tpu.v2alpha1.UpdateNodeRequest;
+import com.google.protobuf.FieldMask;
+
+public class AsyncUpdateNodeLRO {
+
+  public static void main(String[] args) throws Exception {
+    asyncUpdateNodeLRO();
+  }
+
+  public static void asyncUpdateNodeLRO() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      UpdateNodeRequest request =
+          UpdateNodeRequest.newBuilder()
+              .setUpdateMask(FieldMask.newBuilder().build())
+              .setNode(Node.newBuilder().build())
+              .build();
+      OperationFuture<Node, OperationMetadata> future =
+          tpuClient.updateNodeOperationCallable().futureCall(request);
+      // Do something.
+      Node response = future.get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_updatenode_lro_async]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/updatenode/SyncUpdateNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/updatenode/SyncUpdateNode.java
new file mode 100644
index 000000000000..079e952d27ec
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/updatenode/SyncUpdateNode.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_updatenode_sync]
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import com.google.cloud.tpu.v2alpha1.UpdateNodeRequest;
+import com.google.protobuf.FieldMask;
+
+public class SyncUpdateNode {
+
+  public static void main(String[] args) throws Exception {
+    syncUpdateNode();
+  }
+
+  public static void syncUpdateNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      UpdateNodeRequest request =
+          UpdateNodeRequest.newBuilder()
+              .setUpdateMask(FieldMask.newBuilder().build())
+              .setNode(Node.newBuilder().build())
+              .build();
+      Node response = tpuClient.updateNodeAsync(request).get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_updatenode_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/updatenode/SyncUpdateNodeNodeFieldmask.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/updatenode/SyncUpdateNodeNodeFieldmask.java
new file mode 100644
index 000000000000..f0720d17fe0d
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpuclient/updatenode/SyncUpdateNodeNodeFieldmask.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpuclient_updatenode_nodefieldmask_sync]
+import com.google.cloud.tpu.v2alpha1.Node;
+import com.google.cloud.tpu.v2alpha1.TpuClient;
+import com.google.protobuf.FieldMask;
+
+public class SyncUpdateNodeNodeFieldmask {
+
+  public static void main(String[] args) throws Exception {
+    syncUpdateNodeNodeFieldmask();
+  }
+
+  public static void syncUpdateNodeNodeFieldmask() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (TpuClient tpuClient = TpuClient.create()) {
+      Node node = Node.newBuilder().build();
+      FieldMask updateMask = FieldMask.newBuilder().build();
+      Node response = tpuClient.updateNodeAsync(node, updateMask).get();
+    }
+  }
+}
+// [END tpu_v2alpha1_generated_tpuclient_updatenode_nodefieldmask_sync]
diff --git a/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpusettings/getnode/SyncGetNode.java b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpusettings/getnode/SyncGetNode.java
new file mode 100644
index 000000000000..fa5d928fa292
--- /dev/null
+++ b/owl-bot-staging/java-tpu/v2alpha1/samples/snippets/generated/com/google/cloud/tpu/v2alpha1/tpusettings/getnode/SyncGetNode.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.tpu.v2alpha1.samples;
+
+// [START tpu_v2alpha1_generated_tpusettings_getnode_sync]
+import com.google.cloud.tpu.v2alpha1.TpuSettings;
+import java.time.Duration;
+
+public class SyncGetNode {
+
+  public static void main(String[] args) throws Exception {
+    syncGetNode();
+  }
+
+  public static void syncGetNode() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    TpuSettings.Builder tpuSettingsBuilder = TpuSettings.newBuilder();
+    tpuSettingsBuilder
+        .getNodeSettings()
+        .setRetrySettings(
+            tpuSettingsBuilder.getNodeSettings().getRetrySettings().toBuilder()
+                .setTotalTimeout(Duration.ofSeconds(30))
+                .build());
+    TpuSettings tpuSettings = tpuSettingsBuilder.build();
+  }
+}
+// [END tpu_v2alpha1_generated_tpusettings_getnode_sync]