diff --git a/protos/google/bigtable/admin/v2/bigtable_instance_admin.proto b/protos/google/bigtable/admin/v2/bigtable_instance_admin.proto
index d7b2ead1c..108e768fe 100644
--- a/protos/google/bigtable/admin/v2/bigtable_instance_admin.proto
+++ b/protos/google/bigtable/admin/v2/bigtable_instance_admin.proto
@@ -309,7 +309,6 @@ message CreateInstanceRequest {
   // cluster ID, e.g., just `mycluster` rather than
   // `projects/myproject/instances/myinstance/clusters/mycluster`.
   // Fields marked `OutputOnly` must be left blank.
-  // Currently, at most four clusters can be specified.
   map<string, Cluster> clusters = 4 [(google.api.field_behavior) = REQUIRED];
 }
 
diff --git a/protos/google/bigtable/admin/v2/bigtable_table_admin.proto b/protos/google/bigtable/admin/v2/bigtable_table_admin.proto
index 88bd87047..2d9b22d14 100644
--- a/protos/google/bigtable/admin/v2/bigtable_table_admin.proto
+++ b/protos/google/bigtable/admin/v2/bigtable_table_admin.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// 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.
@@ -72,7 +72,8 @@ service BigtableTableAdmin {
   // feature might be changed in backward-incompatible ways and is not
   // recommended for production use. It is not subject to any SLA or deprecation
   // policy.
-  rpc CreateTableFromSnapshot(CreateTableFromSnapshotRequest) returns (google.longrunning.Operation) {
+  rpc CreateTableFromSnapshot(CreateTableFromSnapshotRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v2/{parent=projects/*/instances/*}/tables:createFromSnapshot"
       body: "*"
@@ -108,6 +109,20 @@ service BigtableTableAdmin {
     option (google.api.method_signature) = "name";
   }
 
+  // Restores a specified table which was accidentally deleted.
+  rpc UndeleteTable(UndeleteTableRequest)
+      returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v2/{name=projects/*/instances/*/tables/*}:undelete"
+      body: "*"
+    };
+    option (google.api.method_signature) = "name";
+    option (google.longrunning.operation_info) = {
+      response_type: "Table"
+      metadata_type: "UndeleteTableMetadata"
+    };
+  }
+
   // Performs a series of column family modifications on the specified table.
   // Either all or none of the modifications will occur before this method
   // returns, but data requests received prior to that point may see a table
@@ -134,7 +149,8 @@ service BigtableTableAdmin {
   // CheckConsistency to check whether mutations to the table that finished
   // before this call started have been replicated. The tokens will be available
   // for 90 days.
-  rpc GenerateConsistencyToken(GenerateConsistencyTokenRequest) returns (GenerateConsistencyTokenResponse) {
+  rpc GenerateConsistencyToken(GenerateConsistencyTokenRequest)
+      returns (GenerateConsistencyTokenResponse) {
     option (google.api.http) = {
       post: "/v2/{name=projects/*/instances/*/tables/*}:generateConsistencyToken"
       body: "*"
@@ -145,7 +161,8 @@ service BigtableTableAdmin {
   // Checks replication consistency based on a consistency token, that is, if
   // replication has caught up based on the conditions specified in the token
   // and the check request.
-  rpc CheckConsistency(CheckConsistencyRequest) returns (CheckConsistencyResponse) {
+  rpc CheckConsistency(CheckConsistencyRequest)
+      returns (CheckConsistencyResponse) {
     option (google.api.http) = {
       post: "/v2/{name=projects/*/instances/*/tables/*}:checkConsistency"
       body: "*"
@@ -161,12 +178,14 @@ service BigtableTableAdmin {
   // feature might be changed in backward-incompatible ways and is not
   // recommended for production use. It is not subject to any SLA or deprecation
   // policy.
-  rpc SnapshotTable(SnapshotTableRequest) returns (google.longrunning.Operation) {
+  rpc SnapshotTable(SnapshotTableRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v2/{name=projects/*/instances/*/tables/*}:snapshot"
       body: "*"
     };
-    option (google.api.method_signature) = "name,cluster,snapshot_id,description";
+    option (google.api.method_signature) =
+        "name,cluster,snapshot_id,description";
     option (google.longrunning.operation_info) = {
       response_type: "Snapshot"
       metadata_type: "SnapshotTableMetadata"
@@ -221,8 +240,8 @@ service BigtableTableAdmin {
   // [metadata][google.longrunning.Operation.metadata] field type is
   // [CreateBackupMetadata][google.bigtable.admin.v2.CreateBackupMetadata]. The
   // [response][google.longrunning.Operation.response] field type is
-  // [Backup][google.bigtable.admin.v2.Backup], if successful. Cancelling the returned operation will stop the
-  // creation and delete the backup.
+  // [Backup][google.bigtable.admin.v2.Backup], if successful. Cancelling the
+  // returned operation will stop the creation and delete the backup.
   rpc CreateBackup(CreateBackupRequest) returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v2/{parent=projects/*/instances/*/clusters/*}/backups"
@@ -288,10 +307,26 @@ service BigtableTableAdmin {
     };
   }
 
-  // Gets the access control policy for a Table or Backup resource.
+  // Copy a Cloud Bigtable backup to a new backup in the destination cluster
+  // located in the destination instance and project.
+  rpc CopyBackup(CopyBackupRequest) returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v2/{parent=projects/*/instances/*/clusters/*}/backups:copy"
+      body: "*"
+    };
+    option (google.api.method_signature) =
+        "parent,backup_id,source_backup,expire_time";
+    option (google.longrunning.operation_info) = {
+      response_type: "Backup"
+      metadata_type: "CopyBackupMetadata"
+    };
+  }
+
+  // Gets the access control policy for a Table resource.
   // Returns an empty policy if the resource exists but does not have a policy
   // set.
-  rpc GetIamPolicy(google.iam.v1.GetIamPolicyRequest) returns (google.iam.v1.Policy) {
+  rpc GetIamPolicy(google.iam.v1.GetIamPolicyRequest)
+      returns (google.iam.v1.Policy) {
     option (google.api.http) = {
       post: "/v2/{resource=projects/*/instances/*/tables/*}:getIamPolicy"
       body: "*"
@@ -303,9 +338,10 @@ service BigtableTableAdmin {
     option (google.api.method_signature) = "resource";
   }
 
-  // Sets the access control policy on a Table or Backup resource.
+  // Sets the access control policy on a Table resource.
   // Replaces any existing policy.
-  rpc SetIamPolicy(google.iam.v1.SetIamPolicyRequest) returns (google.iam.v1.Policy) {
+  rpc SetIamPolicy(google.iam.v1.SetIamPolicyRequest)
+      returns (google.iam.v1.Policy) {
     option (google.api.http) = {
       post: "/v2/{resource=projects/*/instances/*/tables/*}:setIamPolicy"
       body: "*"
@@ -317,8 +353,9 @@ service BigtableTableAdmin {
     option (google.api.method_signature) = "resource,policy";
   }
 
-  // Returns permissions that the caller has on the specified Table or Backup resource.
-  rpc TestIamPermissions(google.iam.v1.TestIamPermissionsRequest) returns (google.iam.v1.TestIamPermissionsResponse) {
+  // Returns permissions that the caller has on the specified table resource.
+  rpc TestIamPermissions(google.iam.v1.TestIamPermissionsRequest)
+      returns (google.iam.v1.TestIamPermissionsResponse) {
     option (google.api.http) = {
       post: "/v2/{resource=projects/*/instances/*/tables/*}:testIamPermissions"
       body: "*"
@@ -355,8 +392,8 @@ message RestoreTableRequest {
     // Name of the backup from which to restore.  Values are of the form
     // `projects/<project>/instances/<instance>/clusters/<cluster>/backups/<backup>`.
     string backup = 3 [(google.api.resource_reference) = {
-                         type: "bigtableadmin.googleapis.com/Backup"
-                       }];
+      type: "bigtableadmin.googleapis.com/Backup"
+    }];
   }
 }
 
@@ -370,7 +407,8 @@ message RestoreTableMetadata {
   RestoreSourceType source_type = 2;
 
   // Information about the source used to restore the table, as specified by
-  // `source` in [RestoreTableRequest][google.bigtable.admin.v2.RestoreTableRequest].
+  // `source` in
+  // [RestoreTableRequest][google.bigtable.admin.v2.RestoreTableRequest].
   oneof source_info {
     BackupInfo backup_info = 3;
   }
@@ -386,7 +424,8 @@ message RestoreTableMetadata {
   // not successful.
   string optimize_table_operation_name = 4;
 
-  // The progress of the [RestoreTable][google.bigtable.admin.v2.BigtableTableAdmin.RestoreTable]
+  // The progress of the
+  // [RestoreTable][google.bigtable.admin.v2.BigtableTableAdmin.RestoreTable]
   // operation.
   OperationProgress progress = 5;
 }
@@ -421,8 +460,8 @@ message CreateTableRequest {
     }
   ];
 
-  // Required. The name by which the new table should be referred to within the parent
-  // instance, e.g., `foobar` rather than `{parent}/tables/foobar`.
+  // Required. The name by which the new table should be referred to within the
+  // parent instance, e.g., `foobar` rather than `{parent}/tables/foobar`.
   // Maximum 50 characters.
   string table_id = 2 [(google.api.field_behavior) = REQUIRED];
 
@@ -465,13 +504,13 @@ message CreateTableFromSnapshotRequest {
     }
   ];
 
-  // Required. The name by which the new table should be referred to within the parent
-  // instance, e.g., `foobar` rather than `{parent}/tables/foobar`.
+  // Required. The name by which the new table should be referred to within the
+  // parent instance, e.g., `foobar` rather than `{parent}/tables/foobar`.
   string table_id = 2 [(google.api.field_behavior) = REQUIRED];
 
-  // Required. The unique name of the snapshot from which to restore the table. The
-  // snapshot and the table must be in the same instance.
-  // Values are of the form
+  // Required. The unique name of the snapshot from which to restore the table.
+  // The snapshot and the table must be in the same instance. Values are of the
+  // form
   // `projects/{project}/instances/{instance}/clusters/{cluster}/snapshots/{snapshot}`.
   string source_snapshot = 3 [
     (google.api.field_behavior) = REQUIRED,
@@ -508,8 +547,8 @@ message DropRowRangeRequest {
 // Request message for
 // [google.bigtable.admin.v2.BigtableTableAdmin.ListTables][google.bigtable.admin.v2.BigtableTableAdmin.ListTables]
 message ListTablesRequest {
-  // Required. The unique name of the instance for which tables should be listed.
-  // Values are of the form `projects/{project}/instances/{instance}`.
+  // Required. The unique name of the instance for which tables should be
+  // listed. Values are of the form `projects/{project}/instances/{instance}`.
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -518,7 +557,8 @@ message ListTablesRequest {
   ];
 
   // The view to be applied to the returned tables' fields.
-  // Only NAME_ONLY view (default) and REPLICATION_VIEW are supported.
+  // Only NAME_ONLY view (default), REPLICATION_VIEW and ENCRYPTION_VIEW are
+  // supported.
   Table.View view = 2;
 
   // Maximum number of results per page.
@@ -580,6 +620,33 @@ message DeleteTableRequest {
   ];
 }
 
+// Request message for
+// [google.bigtable.admin.v2.BigtableTableAdmin.UndeleteTable][google.bigtable.admin.v2.BigtableTableAdmin.UndeleteTable]
+message UndeleteTableRequest {
+  // Required. The unique name of the table to be restored.
+  // Values are of the form
+  // `projects/{project}/instances/{instance}/tables/{table}`.
+  string name = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "bigtableadmin.googleapis.com/Table"
+    }
+  ];
+}
+
+// Metadata type for the operation returned by
+// [google.bigtable.admin.v2.BigtableTableAdmin.UndeleteTable][google.bigtable.admin.v2.BigtableTableAdmin.UndeleteTable].
+message UndeleteTableMetadata {
+  // The name of the table being restored.
+  string name = 1;
+
+  // The time at which this operation started.
+  google.protobuf.Timestamp start_time = 2;
+
+  // If set, the time at which this operation finished or was cancelled.
+  google.protobuf.Timestamp end_time = 3;
+}
+
 // Request message for
 // [google.bigtable.admin.v2.BigtableTableAdmin.ModifyColumnFamilies][google.bigtable.admin.v2.BigtableTableAdmin.ModifyColumnFamilies]
 message ModifyColumnFamiliesRequest {
@@ -588,7 +655,7 @@ message ModifyColumnFamiliesRequest {
     // The ID of the column family to be modified.
     string id = 1;
 
-    // Column familiy modifications.
+    // Column family modifications.
     oneof mod {
       // Create a new column family with the specified schema, or fail if
       // one already exists with the given ID.
@@ -614,18 +681,19 @@ message ModifyColumnFamiliesRequest {
     }
   ];
 
-  // Required. Modifications to be atomically applied to the specified table's families.
-  // Entries are applied in order, meaning that earlier modifications can be
-  // masked by later ones (in the case of repeated updates to the same family,
-  // for example).
-  repeated Modification modifications = 2 [(google.api.field_behavior) = REQUIRED];
+  // Required. Modifications to be atomically applied to the specified table's
+  // families. Entries are applied in order, meaning that earlier modifications
+  // can be masked by later ones (in the case of repeated updates to the same
+  // family, for example).
+  repeated Modification modifications = 2
+      [(google.api.field_behavior) = REQUIRED];
 }
 
 // Request message for
 // [google.bigtable.admin.v2.BigtableTableAdmin.GenerateConsistencyToken][google.bigtable.admin.v2.BigtableTableAdmin.GenerateConsistencyToken]
 message GenerateConsistencyTokenRequest {
-  // Required. The unique name of the Table for which to create a consistency token.
-  // Values are of the form
+  // Required. The unique name of the Table for which to create a consistency
+  // token. Values are of the form
   // `projects/{project}/instances/{instance}/tables/{table}`.
   string name = 1 [
     (google.api.field_behavior) = REQUIRED,
@@ -645,8 +713,8 @@ message GenerateConsistencyTokenResponse {
 // Request message for
 // [google.bigtable.admin.v2.BigtableTableAdmin.CheckConsistency][google.bigtable.admin.v2.BigtableTableAdmin.CheckConsistency]
 message CheckConsistencyRequest {
-  // Required. The unique name of the Table for which to check replication consistency.
-  // Values are of the form
+  // Required. The unique name of the Table for which to check replication
+  // consistency. Values are of the form
   // `projects/{project}/instances/{instance}/tables/{table}`.
   string name = 1 [
     (google.api.field_behavior) = REQUIRED,
@@ -695,9 +763,9 @@ message SnapshotTableRequest {
     }
   ];
 
-  // Required. The ID by which the new snapshot should be referred to within the parent
-  // cluster, e.g., `mysnapshot` of the form: `[_a-zA-Z0-9][-_.a-zA-Z0-9]*`
-  // rather than
+  // Required. The ID by which the new snapshot should be referred to within the
+  // parent cluster, e.g., `mysnapshot` of the form:
+  // `[_a-zA-Z0-9][-_.a-zA-Z0-9]*` rather than
   // `projects/{project}/instances/{instance}/clusters/{cluster}/snapshots/mysnapshot`.
   string snapshot_id = 3 [(google.api.field_behavior) = REQUIRED];
 
@@ -738,8 +806,8 @@ message GetSnapshotRequest {
 // feature might be changed in backward-incompatible ways and is not recommended
 // for production use. It is not subject to any SLA or deprecation policy.
 message ListSnapshotsRequest {
-  // Required. The unique name of the cluster for which snapshots should be listed.
-  // Values are of the form
+  // Required. The unique name of the cluster for which snapshots should be
+  // listed. Values are of the form
   // `projects/{project}/instances/{instance}/clusters/{cluster}`.
   // Use `{cluster} = '-'` to list snapshots for all clusters in an instance,
   // e.g., `projects/{project}/instances/{instance}/clusters/-`.
@@ -829,7 +897,8 @@ message CreateTableFromSnapshotMetadata {
   google.protobuf.Timestamp finish_time = 3;
 }
 
-// The request for [CreateBackup][google.bigtable.admin.v2.BigtableTableAdmin.CreateBackup].
+// The request for
+// [CreateBackup][google.bigtable.admin.v2.BigtableTableAdmin.CreateBackup].
 message CreateBackupRequest {
   // Required. This must be one of the clusters in the instance in which this
   // table is located. The backup will be stored in this cluster. Values are
@@ -869,7 +938,8 @@ message CreateBackupMetadata {
   google.protobuf.Timestamp end_time = 4;
 }
 
-// The request for [UpdateBackup][google.bigtable.admin.v2.BigtableTableAdmin.UpdateBackup].
+// The request for
+// [UpdateBackup][google.bigtable.admin.v2.BigtableTableAdmin.UpdateBackup].
 message UpdateBackupRequest {
   // Required. The backup to update. `backup.name`, and the fields to be updated
   // as specified by `update_mask` are required. Other fields are ignored.
@@ -882,10 +952,12 @@ message UpdateBackupRequest {
   // resource, not to the request message. The field mask must always be
   // specified; this prevents any future fields from being erased accidentally
   // by clients that do not know about them.
-  google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = REQUIRED];
+  google.protobuf.FieldMask update_mask = 2
+      [(google.api.field_behavior) = REQUIRED];
 }
 
-// The request for [GetBackup][google.bigtable.admin.v2.BigtableTableAdmin.GetBackup].
+// The request for
+// [GetBackup][google.bigtable.admin.v2.BigtableTableAdmin.GetBackup].
 message GetBackupRequest {
   // Required. Name of the backup.
   // Values are of the form
@@ -898,7 +970,8 @@ message GetBackupRequest {
   ];
 }
 
-// The request for [DeleteBackup][google.bigtable.admin.v2.BigtableTableAdmin.DeleteBackup].
+// The request for
+// [DeleteBackup][google.bigtable.admin.v2.BigtableTableAdmin.DeleteBackup].
 message DeleteBackupRequest {
   // Required. Name of the backup to delete.
   // Values are of the form
@@ -911,7 +984,8 @@ message DeleteBackupRequest {
   ];
 }
 
-// The request for [ListBackups][google.bigtable.admin.v2.BigtableTableAdmin.ListBackups].
+// The request for
+// [ListBackups][google.bigtable.admin.v2.BigtableTableAdmin.ListBackups].
 message ListBackupsRequest {
   // Required. The cluster to list backups from.  Values are of the
   // form `projects/{project}/instances/{instance}/clusters/{cluster}`.
@@ -959,8 +1033,9 @@ message ListBackupsRequest {
   string filter = 2;
 
   // An expression for specifying the sort order of the results of the request.
-  // The string value should specify one or more fields in [Backup][google.bigtable.admin.v2.Backup]. The full
-  // syntax is described at https://aip.dev/132#ordering.
+  // The string value should specify one or more fields in
+  // [Backup][google.bigtable.admin.v2.Backup]. The full syntax is described at
+  // https://aip.dev/132#ordering.
   //
   // Fields supported are:
   //    * name
@@ -985,19 +1060,88 @@ message ListBackupsRequest {
   int32 page_size = 4;
 
   // If non-empty, `page_token` should contain a
-  // [next_page_token][google.bigtable.admin.v2.ListBackupsResponse.next_page_token] from a
-  // previous [ListBackupsResponse][google.bigtable.admin.v2.ListBackupsResponse] to the same `parent` and with the same
-  // `filter`.
+  // [next_page_token][google.bigtable.admin.v2.ListBackupsResponse.next_page_token]
+  // from a previous
+  // [ListBackupsResponse][google.bigtable.admin.v2.ListBackupsResponse] to the
+  // same `parent` and with the same `filter`.
   string page_token = 5;
 }
 
-// The response for [ListBackups][google.bigtable.admin.v2.BigtableTableAdmin.ListBackups].
+// The response for
+// [ListBackups][google.bigtable.admin.v2.BigtableTableAdmin.ListBackups].
 message ListBackupsResponse {
   // The list of matching backups.
   repeated Backup backups = 1;
 
   // `next_page_token` can be sent in a subsequent
-  // [ListBackups][google.bigtable.admin.v2.BigtableTableAdmin.ListBackups] call to fetch more
-  // of the matching backups.
+  // [ListBackups][google.bigtable.admin.v2.BigtableTableAdmin.ListBackups] call
+  // to fetch more of the matching backups.
   string next_page_token = 2;
 }
+
+// The request for
+// [CopyBackup][google.bigtable.admin.v2.BigtableTableAdmin.CopyBackup].
+message CopyBackupRequest {
+  // Required. The name of the destination cluster that will contain the backup
+  // copy. The cluster must already exist. Values are of the form:
+  // `projects/{project}/instances/{instance}/clusters/{cluster}`.
+  string parent = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "bigtableadmin.googleapis.com/Cluster"
+    }
+  ];
+
+  // Required. The id of the new backup. The `backup_id` along with `parent`
+  // are combined as `{parent}/backups/{backup_id}` to create the full backup
+  // name, of the form:
+  // `projects/{project}/instances/{instance}/clusters/{cluster}/backups/{backup_id}`.
+  // This string must be between 1 and 50 characters in length and match the
+  // regex `[_a-zA-Z0-9][-_.a-zA-Z0-9]*`.
+  string backup_id = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. The source backup to be copied from.
+  // The source backup needs to be in READY state for it to be copied.
+  // Copying a copied backup is not allowed.
+  // Once CopyBackup is in progress, the source backup cannot be deleted or
+  // cleaned up on expiration until CopyBackup is finished.
+  // Values are of the form:
+  // `projects/<project>/instances/<instance>/clusters/<cluster>/backups/<backup>`.
+  string source_backup = 3 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "bigtableadmin.googleapis.com/Backup"
+    }
+  ];
+
+  // Required. Required. The expiration time of the copied backup with
+  // microsecond granularity that must be at least 6 hours and at most 30 days
+  // from the time the request is received. Once the `expire_time` has
+  // passed, Cloud Bigtable will delete the backup and free the resources used
+  // by the backup.
+  google.protobuf.Timestamp expire_time = 4
+      [(google.api.field_behavior) = REQUIRED];
+}
+
+// Metadata type for the google.longrunning.Operation returned by
+// [CopyBackup][google.bigtable.admin.v2.BigtableTableAdmin.CopyBackup].
+message CopyBackupMetadata {
+  // The name of the backup being created through the copy operation.
+  // Values are of the form
+  // `projects/<project>/instances/<instance>/clusters/<cluster>/backups/<backup>`.
+  string name = 1 [(google.api.resource_reference) = {
+    type: "bigtableadmin.googleapis.com/Backup"
+  }];
+
+  // The name of the source backup that is being copied from.
+  // Values are of the form
+  // `projects/<project>/instances/<instance>/clusters/<cluster>/backups/<backup>`.
+  string source_backup = 2 [(google.api.resource_reference) = {
+    type: "bigtableadmin.googleapis.com/Backup"
+  }];
+
+  // The progress of the
+  // [CopyBackup][google.bigtable.admin.v2.BigtableTableAdmin.CopyBackup]
+  // operation.
+  OperationProgress progress = 3;
+}
diff --git a/protos/google/bigtable/admin/v2/instance.proto b/protos/google/bigtable/admin/v2/instance.proto
index bbbc5bfaa..cb4710181 100644
--- a/protos/google/bigtable/admin/v2/instance.proto
+++ b/protos/google/bigtable/admin/v2/instance.proto
@@ -82,17 +82,16 @@ message Instance {
   // to avoid confusion.
   string display_name = 2 [(google.api.field_behavior) = REQUIRED];
 
-  // (`OutputOnly`)
-  // The current state of the instance.
-  State state = 3;
+  // Output only. The current state of the instance.
+  State state = 3 [(google.api.field_behavior) = OUTPUT_ONLY];
 
-  // The type of the instance. Defaults to `PRODUCTION`.
-  Type type = 4;
+  // Required. The type of the instance. Defaults to `PRODUCTION`.
+  Type type = 4 [(google.api.field_behavior) = REQUIRED];
 
-  // Labels are a flexible and lightweight mechanism for organizing cloud
-  // resources into groups that reflect a customer's organizational needs and
-  // deployment strategies. They can be used to filter resources and aggregate
-  // metrics.
+  // Required. Labels are a flexible and lightweight mechanism for organizing
+  // cloud resources into groups that reflect a customer's organizational needs
+  // and deployment strategies. They can be used to filter resources and
+  // aggregate metrics.
   //
   // * Label keys must be between 1 and 63 characters long and must conform to
   //   the regular expression: `[\p{Ll}\p{Lo}][\p{Ll}\p{Lo}\p{N}_-]{0,62}`.
@@ -100,12 +99,16 @@ message Instance {
   //   the regular expression: `[\p{Ll}\p{Lo}\p{N}_-]{0,63}`.
   // * No more than 64 labels can be associated with a given resource.
   // * Keys and values must both be under 128 bytes.
-  map<string, string> labels = 5;
+  map<string, string> labels = 5 [(google.api.field_behavior) = REQUIRED];
+
+  // Output only. A server-assigned timestamp representing when this Instance
+  // was created. For instances created before this field was added (August
+  // 2021), this value is `seconds: 0, nanos: 1`.
+  google.protobuf.Timestamp create_time = 7
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 
-  // Output only. A server-assigned timestamp representing when this Instance was created.
-  // For instances created before this field was added (August 2021), this value
-  // is `seconds: 0, nanos: 1`.
-  google.protobuf.Timestamp create_time = 7 [(google.api.field_behavior) = OUTPUT_ONLY];
+  // Output only. Reserved for future use.
+  optional bool satisfies_pzs = 8 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
 // The Autoscaling targets for a Cluster. These determine the recommended nodes.
@@ -115,6 +118,14 @@ message AutoscalingTargets {
   // 100 (total utilization), and is limited between 10 and 80, otherwise it
   // will return INVALID_ARGUMENT error.
   int32 cpu_utilization_percent = 2;
+
+  // The storage utilization that the Autoscaler should be trying to achieve.
+  // This number is limited between 2560 (2.5TiB) and 5120 (5TiB) for a SSD
+  // cluster and between 8192 (8TiB) and 16384 (16TiB) for an HDD cluster,
+  // otherwise it will return INVALID_ARGUMENT error. If this value is set to 0,
+  // it will be treated as if it were set to the default value: 2560 for SSD,
+  // 8192 for HDD.
+  int32 storage_utilization_gib_per_node = 3;
 }
 
 // Limits for the number of nodes a Cluster can autoscale up/down to.
@@ -163,10 +174,12 @@ message Cluster {
   // Autoscaling config for a cluster.
   message ClusterAutoscalingConfig {
     // Required. Autoscaling limits for this cluster.
-    AutoscalingLimits autoscaling_limits = 1 [(google.api.field_behavior) = REQUIRED];
+    AutoscalingLimits autoscaling_limits = 1
+        [(google.api.field_behavior) = REQUIRED];
 
     // Required. Autoscaling targets for this cluster.
-    AutoscalingTargets autoscaling_targets = 2 [(google.api.field_behavior) = REQUIRED];
+    AutoscalingTargets autoscaling_targets = 2
+        [(google.api.field_behavior) = REQUIRED];
   }
 
   // Configuration for a cluster.
@@ -185,20 +198,19 @@ message Cluster {
     //  `cloudkms.cryptoKeyEncrypterDecrypter` role on the CMEK key.
     //  2) Only regional keys can be used and the region of the CMEK key must
     //  match the region of the cluster.
-    //  3) All clusters within an instance must use the same CMEK key.
     // Values are of the form
     // `projects/{project}/locations/{location}/keyRings/{keyring}/cryptoKeys/{key}`
     string kms_key_name = 1 [(google.api.resource_reference) = {
-                               type: "cloudkms.googleapis.com/CryptoKey"
-                             }];
+      type: "cloudkms.googleapis.com/CryptoKey"
+    }];
   }
 
   // The unique name of the cluster. Values are of the form
   // `projects/{project}/instances/{instance}/clusters/[a-z][-a-z0-9]*`.
   string name = 1;
 
-  // Immutable. The location where this cluster's nodes and storage reside. For best
-  // performance, clients should be located as close as possible to this
+  // Immutable. The location where this cluster's nodes and storage reside. For
+  // best performance, clients should be located as close as possible to this
   // cluster. Currently only zones are supported, so values should be of the
   // form `projects/{project}/locations/{zone}`.
   string location = 2 [
@@ -222,10 +234,12 @@ message Cluster {
 
   // Immutable. The type of storage used by this cluster to serve its
   // parent instance's tables, unless explicitly overridden.
-  StorageType default_storage_type = 5 [(google.api.field_behavior) = IMMUTABLE];
+  StorageType default_storage_type = 5
+      [(google.api.field_behavior) = IMMUTABLE];
 
   // Immutable. The encryption configuration for CMEK-protected clusters.
-  EncryptionConfig encryption_config = 6 [(google.api.field_behavior) = IMMUTABLE];
+  EncryptionConfig encryption_config = 6
+      [(google.api.field_behavior) = IMMUTABLE];
 }
 
 // A configuration object describing how Cloud Bigtable should treat traffic
@@ -306,14 +320,16 @@ message HotTablet {
   // Name of the table that contains the tablet. Values are of the form
   // `projects/{project}/instances/{instance}/tables/[_a-zA-Z0-9][-_.a-zA-Z0-9]*`.
   string table_name = 2 [(google.api.resource_reference) = {
-                           type: "bigtableadmin.googleapis.com/Table"
-                         }];
+    type: "bigtableadmin.googleapis.com/Table"
+  }];
 
   // Output only. The start time of the hot tablet.
-  google.protobuf.Timestamp start_time = 3 [(google.api.field_behavior) = OUTPUT_ONLY];
+  google.protobuf.Timestamp start_time = 3
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. The end time of the hot tablet.
-  google.protobuf.Timestamp end_time = 4 [(google.api.field_behavior) = OUTPUT_ONLY];
+  google.protobuf.Timestamp end_time = 4
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Tablet Start Key (inclusive).
   string start_key = 5;
@@ -321,9 +337,9 @@ message HotTablet {
   // Tablet End Key (inclusive).
   string end_key = 6;
 
-  // Output only. The average CPU usage spent by a node on this tablet over the start_time to
-  // end_time time range. The percentage is the amount of CPU used by the node
-  // to serve the tablet, from 0% (tablet was not interacted with) to 100% (the
-  // node spent all cycles serving the hot tablet).
+  // Output only. The average CPU usage spent by a node on this tablet over the
+  // start_time to end_time time range. The percentage is the amount of CPU used
+  // by the node to serve the tablet, from 0% (tablet was not interacted with)
+  // to 100% (the node spent all cycles serving the hot tablet).
   float node_cpu_usage_percent = 7 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
diff --git a/protos/google/bigtable/admin/v2/table.proto b/protos/google/bigtable/admin/v2/table.proto
index 4e5d2a4a7..3f189739a 100644
--- a/protos/google/bigtable/admin/v2/table.proto
+++ b/protos/google/bigtable/admin/v2/table.proto
@@ -34,7 +34,6 @@ option (google.api.resource_definition) = {
   pattern: "projects/{project}/locations/{location}/keyRings/{key_ring}/cryptoKeys/{crypto_key}/cryptoKeyVersions/{crypto_key_version}"
 };
 
-
 // Information about a table restore.
 message RestoreInfo {
   // The type of the restore source.
@@ -88,14 +87,16 @@ message Table {
     }
 
     // Output only. The state of replication for the table in this cluster.
-    ReplicationState replication_state = 1 [(google.api.field_behavior) = OUTPUT_ONLY];
+    ReplicationState replication_state = 1
+        [(google.api.field_behavior) = OUTPUT_ONLY];
 
     // Output only. The encryption information for the table in this cluster.
     // If the encryption key protecting this resource is customer managed, then
     // its version can be rotated in Cloud Key Management Service (Cloud KMS).
     // The primary version of the key and its status will be reflected here when
     // changes propagate from Cloud KMS.
-    repeated EncryptionInfo encryption_info = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
+    repeated EncryptionInfo encryption_info = 2
+        [(google.api.field_behavior) = OUTPUT_ONLY];
   }
 
   // Possible timestamp granularities to use when keeping multiple versions
@@ -141,20 +142,22 @@ message Table {
   // particular cluster (for example, if its zone is unavailable), then
   // there will be an entry for the cluster with UNKNOWN `replication_status`.
   // Views: `REPLICATION_VIEW`, `ENCRYPTION_VIEW`, `FULL`
-  map<string, ClusterState> cluster_states = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
+  map<string, ClusterState> cluster_states = 2
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // The column families configured for this table, mapped by column family ID.
   // Views: `SCHEMA_VIEW`, `FULL`
   map<string, ColumnFamily> column_families = 3;
 
-  // Immutable. The granularity (i.e. `MILLIS`) at which timestamps are stored in this
-  // table. Timestamps not matching the granularity will be rejected.
-  // If unspecified at creation time, the value will be set to `MILLIS`.
-  // Views: `SCHEMA_VIEW`, `FULL`.
-  TimestampGranularity granularity = 4 [(google.api.field_behavior) = IMMUTABLE];
+  // Immutable. The granularity (i.e. `MILLIS`) at which timestamps are stored
+  // in this table. Timestamps not matching the granularity will be rejected. If
+  // unspecified at creation time, the value will be set to `MILLIS`. Views:
+  // `SCHEMA_VIEW`, `FULL`.
+  TimestampGranularity granularity = 4
+      [(google.api.field_behavior) = IMMUTABLE];
 
-  // Output only. If this table was restored from another data source (e.g. a backup), this
-  // field will be populated with information about the restore.
+  // Output only. If this table was restored from another data source (e.g. a
+  // backup), this field will be populated with information about the restore.
   RestoreInfo restore_info = 6 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
@@ -227,14 +230,17 @@ message EncryptionInfo {
   }
 
   // Output only. The type of encryption used to protect this resource.
-  EncryptionType encryption_type = 3 [(google.api.field_behavior) = OUTPUT_ONLY];
+  EncryptionType encryption_type = 3
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 
-  // Output only. The status of encrypt/decrypt calls on underlying data for this resource.
-  // Regardless of status, the existing data is always encrypted at rest.
-  google.rpc.Status encryption_status = 4 [(google.api.field_behavior) = OUTPUT_ONLY];
+  // Output only. The status of encrypt/decrypt calls on underlying data for
+  // this resource. Regardless of status, the existing data is always encrypted
+  // at rest.
+  google.rpc.Status encryption_status = 4
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 
-  // Output only. The version of the Cloud KMS key specified in the parent cluster that is
-  // in use for the data underlying this table.
+  // Output only. The version of the Cloud KMS key specified in the parent
+  // cluster that is in use for the data underlying this table.
   string kms_key_version = 2 [
     (google.api.field_behavior) = OUTPUT_ONLY,
     (google.api.resource_reference) = {
@@ -270,32 +276,33 @@ message Snapshot {
     CREATING = 2;
   }
 
-  // Output only. The unique name of the snapshot.
+  // The unique name of the snapshot.
   // Values are of the form
   // `projects/{project}/instances/{instance}/clusters/{cluster}/snapshots/{snapshot}`.
   string name = 1;
 
   // Output only. The source table at the time the snapshot was taken.
-  Table source_table = 2;
+  Table source_table = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. The size of the data in the source table at the time the
   // snapshot was taken. In some cases, this value may be computed
   // asynchronously via a background process and a placeholder of 0 will be used
   // in the meantime.
-  int64 data_size_bytes = 3;
+  int64 data_size_bytes = 3 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. The time when the snapshot is created.
-  google.protobuf.Timestamp create_time = 4;
+  google.protobuf.Timestamp create_time = 4
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 
-  // Output only. The time when the snapshot will be deleted. The maximum amount
-  // of time a snapshot can stay active is 365 days. If 'ttl' is not specified,
+  // The time when the snapshot will be deleted. The maximum amount of time a
+  // snapshot can stay active is 365 days. If 'ttl' is not specified,
   // the default maximum of 365 days will be used.
   google.protobuf.Timestamp delete_time = 5;
 
   // Output only. The current state of the snapshot.
-  State state = 6;
+  State state = 6 [(google.api.field_behavior) = OUTPUT_ONLY];
 
-  // Output only. Description of the snapshot.
+  // Description of the snapshot.
   string description = 7;
 }
 
@@ -331,8 +338,8 @@ message Backup {
   // `projects/{project}/instances/{instance}/clusters/{cluster}`.
   string name = 1;
 
-  // Required. Immutable. Name of the table from which this backup was created. This needs
-  // to be in the same instance as the backup. Values are of the form
+  // Required. Immutable. Name of the table from which this backup was created.
+  // This needs to be in the same instance as the backup. Values are of the form
   // `projects/{project}/instances/{instance}/tables/{source_table}`.
   string source_table = 2 [
     (google.api.field_behavior) = IMMUTABLE,
@@ -344,17 +351,21 @@ message Backup {
   // from the time the request is received. Once the `expire_time`
   // has passed, Cloud Bigtable will delete the backup and free the
   // resources used by the backup.
-  google.protobuf.Timestamp expire_time = 3 [(google.api.field_behavior) = REQUIRED];
+  google.protobuf.Timestamp expire_time = 3
+      [(google.api.field_behavior) = REQUIRED];
 
   // Output only. `start_time` is the time that the backup was started
   // (i.e. approximately the time the
-  // [CreateBackup][google.bigtable.admin.v2.BigtableTableAdmin.CreateBackup] request is received).  The
-  // row data in this backup will be no older than this timestamp.
-  google.protobuf.Timestamp start_time = 4 [(google.api.field_behavior) = OUTPUT_ONLY];
+  // [CreateBackup][google.bigtable.admin.v2.BigtableTableAdmin.CreateBackup]
+  // request is received).  The row data in this backup will be no older than
+  // this timestamp.
+  google.protobuf.Timestamp start_time = 4
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. `end_time` is the time that the backup was finished. The row
   // data in the backup will be no newer than this timestamp.
-  google.protobuf.Timestamp end_time = 5 [(google.api.field_behavior) = OUTPUT_ONLY];
+  google.protobuf.Timestamp end_time = 5
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. Size of the backup in bytes.
   int64 size_bytes = 6 [(google.api.field_behavior) = OUTPUT_ONLY];
@@ -363,7 +374,8 @@ message Backup {
   State state = 7 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. The encryption information for the backup.
-  EncryptionInfo encryption_info = 9 [(google.api.field_behavior) = OUTPUT_ONLY];
+  EncryptionInfo encryption_info = 9
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
 // Information about a backup.
@@ -373,11 +385,13 @@ message BackupInfo {
 
   // Output only. The time that the backup was started. Row data in the backup
   // will be no older than this timestamp.
-  google.protobuf.Timestamp start_time = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
+  google.protobuf.Timestamp start_time = 2
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. This time that the backup was finished. Row data in the
   // backup will be no newer than this timestamp.
-  google.protobuf.Timestamp end_time = 3 [(google.api.field_behavior) = OUTPUT_ONLY];
+  google.protobuf.Timestamp end_time = 3
+      [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // Output only. Name of the table the backup was created from.
   string source_table = 4 [(google.api.field_behavior) = OUTPUT_ONLY];
diff --git a/protos/protos.d.ts b/protos/protos.d.ts
index a7cf2682d..e51141de9 100644
--- a/protos/protos.d.ts
+++ b/protos/protos.d.ts
@@ -344,147 +344,147 @@ export namespace google {
                 namespace BigtableInstanceAdmin {
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#createInstance}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|createInstance}.
                      * @param error Error, if any
                      * @param [response] Operation
                      */
                     type CreateInstanceCallback = (error: (Error|null), response?: google.longrunning.Operation) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#getInstance}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|getInstance}.
                      * @param error Error, if any
                      * @param [response] Instance
                      */
                     type GetInstanceCallback = (error: (Error|null), response?: google.bigtable.admin.v2.Instance) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#listInstances}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|listInstances}.
                      * @param error Error, if any
                      * @param [response] ListInstancesResponse
                      */
                     type ListInstancesCallback = (error: (Error|null), response?: google.bigtable.admin.v2.ListInstancesResponse) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#updateInstance}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|updateInstance}.
                      * @param error Error, if any
                      * @param [response] Instance
                      */
                     type UpdateInstanceCallback = (error: (Error|null), response?: google.bigtable.admin.v2.Instance) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#partialUpdateInstance}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|partialUpdateInstance}.
                      * @param error Error, if any
                      * @param [response] Operation
                      */
                     type PartialUpdateInstanceCallback = (error: (Error|null), response?: google.longrunning.Operation) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#deleteInstance}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|deleteInstance}.
                      * @param error Error, if any
                      * @param [response] Empty
                      */
                     type DeleteInstanceCallback = (error: (Error|null), response?: google.protobuf.Empty) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#createCluster}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|createCluster}.
                      * @param error Error, if any
                      * @param [response] Operation
                      */
                     type CreateClusterCallback = (error: (Error|null), response?: google.longrunning.Operation) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#getCluster}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|getCluster}.
                      * @param error Error, if any
                      * @param [response] Cluster
                      */
                     type GetClusterCallback = (error: (Error|null), response?: google.bigtable.admin.v2.Cluster) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#listClusters}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|listClusters}.
                      * @param error Error, if any
                      * @param [response] ListClustersResponse
                      */
                     type ListClustersCallback = (error: (Error|null), response?: google.bigtable.admin.v2.ListClustersResponse) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#updateCluster}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|updateCluster}.
                      * @param error Error, if any
                      * @param [response] Operation
                      */
                     type UpdateClusterCallback = (error: (Error|null), response?: google.longrunning.Operation) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#partialUpdateCluster}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|partialUpdateCluster}.
                      * @param error Error, if any
                      * @param [response] Operation
                      */
                     type PartialUpdateClusterCallback = (error: (Error|null), response?: google.longrunning.Operation) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#deleteCluster}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|deleteCluster}.
                      * @param error Error, if any
                      * @param [response] Empty
                      */
                     type DeleteClusterCallback = (error: (Error|null), response?: google.protobuf.Empty) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#createAppProfile}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|createAppProfile}.
                      * @param error Error, if any
                      * @param [response] AppProfile
                      */
                     type CreateAppProfileCallback = (error: (Error|null), response?: google.bigtable.admin.v2.AppProfile) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#getAppProfile}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|getAppProfile}.
                      * @param error Error, if any
                      * @param [response] AppProfile
                      */
                     type GetAppProfileCallback = (error: (Error|null), response?: google.bigtable.admin.v2.AppProfile) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#listAppProfiles}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|listAppProfiles}.
                      * @param error Error, if any
                      * @param [response] ListAppProfilesResponse
                      */
                     type ListAppProfilesCallback = (error: (Error|null), response?: google.bigtable.admin.v2.ListAppProfilesResponse) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#updateAppProfile}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|updateAppProfile}.
                      * @param error Error, if any
                      * @param [response] Operation
                      */
                     type UpdateAppProfileCallback = (error: (Error|null), response?: google.longrunning.Operation) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#deleteAppProfile}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|deleteAppProfile}.
                      * @param error Error, if any
                      * @param [response] Empty
                      */
                     type DeleteAppProfileCallback = (error: (Error|null), response?: google.protobuf.Empty) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#getIamPolicy}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|getIamPolicy}.
                      * @param error Error, if any
                      * @param [response] Policy
                      */
                     type GetIamPolicyCallback = (error: (Error|null), response?: google.iam.v1.Policy) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#setIamPolicy}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|setIamPolicy}.
                      * @param error Error, if any
                      * @param [response] Policy
                      */
                     type SetIamPolicyCallback = (error: (Error|null), response?: google.iam.v1.Policy) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#testIamPermissions}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|testIamPermissions}.
                      * @param error Error, if any
                      * @param [response] TestIamPermissionsResponse
                      */
                     type TestIamPermissionsCallback = (error: (Error|null), response?: google.iam.v1.TestIamPermissionsResponse) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#listHotTablets}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|listHotTablets}.
                      * @param error Error, if any
                      * @param [response] ListHotTabletsResponse
                      */
@@ -3196,6 +3196,9 @@ export namespace google {
 
                     /** Instance createTime */
                     createTime?: (google.protobuf.ITimestamp|null);
+
+                    /** Instance satisfiesPzs */
+                    satisfiesPzs?: (boolean|null);
                 }
 
                 /** Represents an Instance. */
@@ -3225,6 +3228,12 @@ export namespace google {
                     /** Instance createTime. */
                     public createTime?: (google.protobuf.ITimestamp|null);
 
+                    /** Instance satisfiesPzs. */
+                    public satisfiesPzs?: (boolean|null);
+
+                    /** Instance _satisfiesPzs. */
+                    public _satisfiesPzs?: "satisfiesPzs";
+
                     /**
                      * Creates a new Instance instance using the specified properties.
                      * @param [properties] Properties to set
@@ -3318,6 +3327,9 @@ export namespace google {
 
                     /** AutoscalingTargets cpuUtilizationPercent */
                     cpuUtilizationPercent?: (number|null);
+
+                    /** AutoscalingTargets storageUtilizationGibPerNode */
+                    storageUtilizationGibPerNode?: (number|null);
                 }
 
                 /** Represents an AutoscalingTargets. */
@@ -3332,6 +3344,9 @@ export namespace google {
                     /** AutoscalingTargets cpuUtilizationPercent. */
                     public cpuUtilizationPercent: number;
 
+                    /** AutoscalingTargets storageUtilizationGibPerNode. */
+                    public storageUtilizationGibPerNode: number;
+
                     /**
                      * Creates a new AutoscalingTargets instance using the specified properties.
                      * @param [properties] Properties to set
@@ -4547,6 +4562,20 @@ export namespace google {
                      */
                     public deleteTable(request: google.bigtable.admin.v2.IDeleteTableRequest): Promise<google.protobuf.Empty>;
 
+                    /**
+                     * Calls UndeleteTable.
+                     * @param request UndeleteTableRequest message or plain object
+                     * @param callback Node-style callback called with the error, if any, and Operation
+                     */
+                    public undeleteTable(request: google.bigtable.admin.v2.IUndeleteTableRequest, callback: google.bigtable.admin.v2.BigtableTableAdmin.UndeleteTableCallback): void;
+
+                    /**
+                     * Calls UndeleteTable.
+                     * @param request UndeleteTableRequest message or plain object
+                     * @returns Promise
+                     */
+                    public undeleteTable(request: google.bigtable.admin.v2.IUndeleteTableRequest): Promise<google.longrunning.Operation>;
+
                     /**
                      * Calls ModifyColumnFamilies.
                      * @param request ModifyColumnFamiliesRequest message or plain object
@@ -4743,6 +4772,20 @@ export namespace google {
                      */
                     public restoreTable(request: google.bigtable.admin.v2.IRestoreTableRequest): Promise<google.longrunning.Operation>;
 
+                    /**
+                     * Calls CopyBackup.
+                     * @param request CopyBackupRequest message or plain object
+                     * @param callback Node-style callback called with the error, if any, and Operation
+                     */
+                    public copyBackup(request: google.bigtable.admin.v2.ICopyBackupRequest, callback: google.bigtable.admin.v2.BigtableTableAdmin.CopyBackupCallback): void;
+
+                    /**
+                     * Calls CopyBackup.
+                     * @param request CopyBackupRequest message or plain object
+                     * @returns Promise
+                     */
+                    public copyBackup(request: google.bigtable.admin.v2.ICopyBackupRequest): Promise<google.longrunning.Operation>;
+
                     /**
                      * Calls GetIamPolicy.
                      * @param request GetIamPolicyRequest message or plain object
@@ -4789,154 +4832,168 @@ export namespace google {
                 namespace BigtableTableAdmin {
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#createTable}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|createTable}.
                      * @param error Error, if any
                      * @param [response] Table
                      */
                     type CreateTableCallback = (error: (Error|null), response?: google.bigtable.admin.v2.Table) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#createTableFromSnapshot}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|createTableFromSnapshot}.
                      * @param error Error, if any
                      * @param [response] Operation
                      */
                     type CreateTableFromSnapshotCallback = (error: (Error|null), response?: google.longrunning.Operation) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#listTables}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|listTables}.
                      * @param error Error, if any
                      * @param [response] ListTablesResponse
                      */
                     type ListTablesCallback = (error: (Error|null), response?: google.bigtable.admin.v2.ListTablesResponse) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#getTable}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|getTable}.
                      * @param error Error, if any
                      * @param [response] Table
                      */
                     type GetTableCallback = (error: (Error|null), response?: google.bigtable.admin.v2.Table) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#deleteTable}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|deleteTable}.
                      * @param error Error, if any
                      * @param [response] Empty
                      */
                     type DeleteTableCallback = (error: (Error|null), response?: google.protobuf.Empty) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#modifyColumnFamilies}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|undeleteTable}.
+                     * @param error Error, if any
+                     * @param [response] Operation
+                     */
+                    type UndeleteTableCallback = (error: (Error|null), response?: google.longrunning.Operation) => void;
+
+                    /**
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|modifyColumnFamilies}.
                      * @param error Error, if any
                      * @param [response] Table
                      */
                     type ModifyColumnFamiliesCallback = (error: (Error|null), response?: google.bigtable.admin.v2.Table) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#dropRowRange}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|dropRowRange}.
                      * @param error Error, if any
                      * @param [response] Empty
                      */
                     type DropRowRangeCallback = (error: (Error|null), response?: google.protobuf.Empty) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#generateConsistencyToken}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|generateConsistencyToken}.
                      * @param error Error, if any
                      * @param [response] GenerateConsistencyTokenResponse
                      */
                     type GenerateConsistencyTokenCallback = (error: (Error|null), response?: google.bigtable.admin.v2.GenerateConsistencyTokenResponse) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#checkConsistency}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|checkConsistency}.
                      * @param error Error, if any
                      * @param [response] CheckConsistencyResponse
                      */
                     type CheckConsistencyCallback = (error: (Error|null), response?: google.bigtable.admin.v2.CheckConsistencyResponse) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#snapshotTable}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|snapshotTable}.
                      * @param error Error, if any
                      * @param [response] Operation
                      */
                     type SnapshotTableCallback = (error: (Error|null), response?: google.longrunning.Operation) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#getSnapshot}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|getSnapshot}.
                      * @param error Error, if any
                      * @param [response] Snapshot
                      */
                     type GetSnapshotCallback = (error: (Error|null), response?: google.bigtable.admin.v2.Snapshot) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#listSnapshots}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|listSnapshots}.
                      * @param error Error, if any
                      * @param [response] ListSnapshotsResponse
                      */
                     type ListSnapshotsCallback = (error: (Error|null), response?: google.bigtable.admin.v2.ListSnapshotsResponse) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#deleteSnapshot}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|deleteSnapshot}.
                      * @param error Error, if any
                      * @param [response] Empty
                      */
                     type DeleteSnapshotCallback = (error: (Error|null), response?: google.protobuf.Empty) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#createBackup}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|createBackup}.
                      * @param error Error, if any
                      * @param [response] Operation
                      */
                     type CreateBackupCallback = (error: (Error|null), response?: google.longrunning.Operation) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#getBackup}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|getBackup}.
                      * @param error Error, if any
                      * @param [response] Backup
                      */
                     type GetBackupCallback = (error: (Error|null), response?: google.bigtable.admin.v2.Backup) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#updateBackup}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|updateBackup}.
                      * @param error Error, if any
                      * @param [response] Backup
                      */
                     type UpdateBackupCallback = (error: (Error|null), response?: google.bigtable.admin.v2.Backup) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#deleteBackup}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|deleteBackup}.
                      * @param error Error, if any
                      * @param [response] Empty
                      */
                     type DeleteBackupCallback = (error: (Error|null), response?: google.protobuf.Empty) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#listBackups}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|listBackups}.
                      * @param error Error, if any
                      * @param [response] ListBackupsResponse
                      */
                     type ListBackupsCallback = (error: (Error|null), response?: google.bigtable.admin.v2.ListBackupsResponse) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#restoreTable}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|restoreTable}.
                      * @param error Error, if any
                      * @param [response] Operation
                      */
                     type RestoreTableCallback = (error: (Error|null), response?: google.longrunning.Operation) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#getIamPolicy}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|copyBackup}.
+                     * @param error Error, if any
+                     * @param [response] Operation
+                     */
+                    type CopyBackupCallback = (error: (Error|null), response?: google.longrunning.Operation) => void;
+
+                    /**
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|getIamPolicy}.
                      * @param error Error, if any
                      * @param [response] Policy
                      */
                     type GetIamPolicyCallback = (error: (Error|null), response?: google.iam.v1.Policy) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#setIamPolicy}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|setIamPolicy}.
                      * @param error Error, if any
                      * @param [response] Policy
                      */
                     type SetIamPolicyCallback = (error: (Error|null), response?: google.iam.v1.Policy) => void;
 
                     /**
-                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#testIamPermissions}.
+                     * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|testIamPermissions}.
                      * @param error Error, if any
                      * @param [response] TestIamPermissionsResponse
                      */
@@ -6059,6 +6116,198 @@ export namespace google {
                     public toJSON(): { [k: string]: any };
                 }
 
+                /** Properties of an UndeleteTableRequest. */
+                interface IUndeleteTableRequest {
+
+                    /** UndeleteTableRequest name */
+                    name?: (string|null);
+                }
+
+                /** Represents an UndeleteTableRequest. */
+                class UndeleteTableRequest implements IUndeleteTableRequest {
+
+                    /**
+                     * Constructs a new UndeleteTableRequest.
+                     * @param [properties] Properties to set
+                     */
+                    constructor(properties?: google.bigtable.admin.v2.IUndeleteTableRequest);
+
+                    /** UndeleteTableRequest name. */
+                    public name: string;
+
+                    /**
+                     * Creates a new UndeleteTableRequest instance using the specified properties.
+                     * @param [properties] Properties to set
+                     * @returns UndeleteTableRequest instance
+                     */
+                    public static create(properties?: google.bigtable.admin.v2.IUndeleteTableRequest): google.bigtable.admin.v2.UndeleteTableRequest;
+
+                    /**
+                     * Encodes the specified UndeleteTableRequest message. Does not implicitly {@link google.bigtable.admin.v2.UndeleteTableRequest.verify|verify} messages.
+                     * @param message UndeleteTableRequest message or plain object to encode
+                     * @param [writer] Writer to encode to
+                     * @returns Writer
+                     */
+                    public static encode(message: google.bigtable.admin.v2.IUndeleteTableRequest, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                    /**
+                     * Encodes the specified UndeleteTableRequest message, length delimited. Does not implicitly {@link google.bigtable.admin.v2.UndeleteTableRequest.verify|verify} messages.
+                     * @param message UndeleteTableRequest message or plain object to encode
+                     * @param [writer] Writer to encode to
+                     * @returns Writer
+                     */
+                    public static encodeDelimited(message: google.bigtable.admin.v2.IUndeleteTableRequest, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                    /**
+                     * Decodes an UndeleteTableRequest message from the specified reader or buffer.
+                     * @param reader Reader or buffer to decode from
+                     * @param [length] Message length if known beforehand
+                     * @returns UndeleteTableRequest
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.bigtable.admin.v2.UndeleteTableRequest;
+
+                    /**
+                     * Decodes an UndeleteTableRequest message from the specified reader or buffer, length delimited.
+                     * @param reader Reader or buffer to decode from
+                     * @returns UndeleteTableRequest
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.bigtable.admin.v2.UndeleteTableRequest;
+
+                    /**
+                     * Verifies an UndeleteTableRequest message.
+                     * @param message Plain object to verify
+                     * @returns `null` if valid, otherwise the reason why it is not
+                     */
+                    public static verify(message: { [k: string]: any }): (string|null);
+
+                    /**
+                     * Creates an UndeleteTableRequest message from a plain object. Also converts values to their respective internal types.
+                     * @param object Plain object
+                     * @returns UndeleteTableRequest
+                     */
+                    public static fromObject(object: { [k: string]: any }): google.bigtable.admin.v2.UndeleteTableRequest;
+
+                    /**
+                     * Creates a plain object from an UndeleteTableRequest message. Also converts values to other types if specified.
+                     * @param message UndeleteTableRequest
+                     * @param [options] Conversion options
+                     * @returns Plain object
+                     */
+                    public static toObject(message: google.bigtable.admin.v2.UndeleteTableRequest, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                    /**
+                     * Converts this UndeleteTableRequest to JSON.
+                     * @returns JSON object
+                     */
+                    public toJSON(): { [k: string]: any };
+                }
+
+                /** Properties of an UndeleteTableMetadata. */
+                interface IUndeleteTableMetadata {
+
+                    /** UndeleteTableMetadata name */
+                    name?: (string|null);
+
+                    /** UndeleteTableMetadata startTime */
+                    startTime?: (google.protobuf.ITimestamp|null);
+
+                    /** UndeleteTableMetadata endTime */
+                    endTime?: (google.protobuf.ITimestamp|null);
+                }
+
+                /** Represents an UndeleteTableMetadata. */
+                class UndeleteTableMetadata implements IUndeleteTableMetadata {
+
+                    /**
+                     * Constructs a new UndeleteTableMetadata.
+                     * @param [properties] Properties to set
+                     */
+                    constructor(properties?: google.bigtable.admin.v2.IUndeleteTableMetadata);
+
+                    /** UndeleteTableMetadata name. */
+                    public name: string;
+
+                    /** UndeleteTableMetadata startTime. */
+                    public startTime?: (google.protobuf.ITimestamp|null);
+
+                    /** UndeleteTableMetadata endTime. */
+                    public endTime?: (google.protobuf.ITimestamp|null);
+
+                    /**
+                     * Creates a new UndeleteTableMetadata instance using the specified properties.
+                     * @param [properties] Properties to set
+                     * @returns UndeleteTableMetadata instance
+                     */
+                    public static create(properties?: google.bigtable.admin.v2.IUndeleteTableMetadata): google.bigtable.admin.v2.UndeleteTableMetadata;
+
+                    /**
+                     * Encodes the specified UndeleteTableMetadata message. Does not implicitly {@link google.bigtable.admin.v2.UndeleteTableMetadata.verify|verify} messages.
+                     * @param message UndeleteTableMetadata message or plain object to encode
+                     * @param [writer] Writer to encode to
+                     * @returns Writer
+                     */
+                    public static encode(message: google.bigtable.admin.v2.IUndeleteTableMetadata, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                    /**
+                     * Encodes the specified UndeleteTableMetadata message, length delimited. Does not implicitly {@link google.bigtable.admin.v2.UndeleteTableMetadata.verify|verify} messages.
+                     * @param message UndeleteTableMetadata message or plain object to encode
+                     * @param [writer] Writer to encode to
+                     * @returns Writer
+                     */
+                    public static encodeDelimited(message: google.bigtable.admin.v2.IUndeleteTableMetadata, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                    /**
+                     * Decodes an UndeleteTableMetadata message from the specified reader or buffer.
+                     * @param reader Reader or buffer to decode from
+                     * @param [length] Message length if known beforehand
+                     * @returns UndeleteTableMetadata
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.bigtable.admin.v2.UndeleteTableMetadata;
+
+                    /**
+                     * Decodes an UndeleteTableMetadata message from the specified reader or buffer, length delimited.
+                     * @param reader Reader or buffer to decode from
+                     * @returns UndeleteTableMetadata
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.bigtable.admin.v2.UndeleteTableMetadata;
+
+                    /**
+                     * Verifies an UndeleteTableMetadata message.
+                     * @param message Plain object to verify
+                     * @returns `null` if valid, otherwise the reason why it is not
+                     */
+                    public static verify(message: { [k: string]: any }): (string|null);
+
+                    /**
+                     * Creates an UndeleteTableMetadata message from a plain object. Also converts values to their respective internal types.
+                     * @param object Plain object
+                     * @returns UndeleteTableMetadata
+                     */
+                    public static fromObject(object: { [k: string]: any }): google.bigtable.admin.v2.UndeleteTableMetadata;
+
+                    /**
+                     * Creates a plain object from an UndeleteTableMetadata message. Also converts values to other types if specified.
+                     * @param message UndeleteTableMetadata
+                     * @param [options] Conversion options
+                     * @returns Plain object
+                     */
+                    public static toObject(message: google.bigtable.admin.v2.UndeleteTableMetadata, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                    /**
+                     * Converts this UndeleteTableMetadata to JSON.
+                     * @returns JSON object
+                     */
+                    public toJSON(): { [k: string]: any };
+                }
+
                 /** Properties of a ModifyColumnFamiliesRequest. */
                 interface IModifyColumnFamiliesRequest {
 
@@ -8027,207 +8276,417 @@ export namespace google {
                     public toJSON(): { [k: string]: any };
                 }
 
-                /** Properties of a RestoreInfo. */
-                interface IRestoreInfo {
+                /** Properties of a CopyBackupRequest. */
+                interface ICopyBackupRequest {
 
-                    /** RestoreInfo sourceType */
-                    sourceType?: (google.bigtable.admin.v2.RestoreSourceType|keyof typeof google.bigtable.admin.v2.RestoreSourceType|null);
+                    /** CopyBackupRequest parent */
+                    parent?: (string|null);
 
-                    /** RestoreInfo backupInfo */
-                    backupInfo?: (google.bigtable.admin.v2.IBackupInfo|null);
+                    /** CopyBackupRequest backupId */
+                    backupId?: (string|null);
+
+                    /** CopyBackupRequest sourceBackup */
+                    sourceBackup?: (string|null);
+
+                    /** CopyBackupRequest expireTime */
+                    expireTime?: (google.protobuf.ITimestamp|null);
                 }
 
-                /** Represents a RestoreInfo. */
-                class RestoreInfo implements IRestoreInfo {
+                /** Represents a CopyBackupRequest. */
+                class CopyBackupRequest implements ICopyBackupRequest {
 
                     /**
-                     * Constructs a new RestoreInfo.
+                     * Constructs a new CopyBackupRequest.
                      * @param [properties] Properties to set
                      */
-                    constructor(properties?: google.bigtable.admin.v2.IRestoreInfo);
+                    constructor(properties?: google.bigtable.admin.v2.ICopyBackupRequest);
 
-                    /** RestoreInfo sourceType. */
-                    public sourceType: (google.bigtable.admin.v2.RestoreSourceType|keyof typeof google.bigtable.admin.v2.RestoreSourceType);
+                    /** CopyBackupRequest parent. */
+                    public parent: string;
 
-                    /** RestoreInfo backupInfo. */
-                    public backupInfo?: (google.bigtable.admin.v2.IBackupInfo|null);
+                    /** CopyBackupRequest backupId. */
+                    public backupId: string;
 
-                    /** RestoreInfo sourceInfo. */
-                    public sourceInfo?: "backupInfo";
+                    /** CopyBackupRequest sourceBackup. */
+                    public sourceBackup: string;
+
+                    /** CopyBackupRequest expireTime. */
+                    public expireTime?: (google.protobuf.ITimestamp|null);
 
                     /**
-                     * Creates a new RestoreInfo instance using the specified properties.
+                     * Creates a new CopyBackupRequest instance using the specified properties.
                      * @param [properties] Properties to set
-                     * @returns RestoreInfo instance
+                     * @returns CopyBackupRequest instance
                      */
-                    public static create(properties?: google.bigtable.admin.v2.IRestoreInfo): google.bigtable.admin.v2.RestoreInfo;
+                    public static create(properties?: google.bigtable.admin.v2.ICopyBackupRequest): google.bigtable.admin.v2.CopyBackupRequest;
 
                     /**
-                     * Encodes the specified RestoreInfo message. Does not implicitly {@link google.bigtable.admin.v2.RestoreInfo.verify|verify} messages.
-                     * @param message RestoreInfo message or plain object to encode
+                     * Encodes the specified CopyBackupRequest message. Does not implicitly {@link google.bigtable.admin.v2.CopyBackupRequest.verify|verify} messages.
+                     * @param message CopyBackupRequest message or plain object to encode
                      * @param [writer] Writer to encode to
                      * @returns Writer
                      */
-                    public static encode(message: google.bigtable.admin.v2.IRestoreInfo, writer?: $protobuf.Writer): $protobuf.Writer;
+                    public static encode(message: google.bigtable.admin.v2.ICopyBackupRequest, writer?: $protobuf.Writer): $protobuf.Writer;
 
                     /**
-                     * Encodes the specified RestoreInfo message, length delimited. Does not implicitly {@link google.bigtable.admin.v2.RestoreInfo.verify|verify} messages.
-                     * @param message RestoreInfo message or plain object to encode
+                     * Encodes the specified CopyBackupRequest message, length delimited. Does not implicitly {@link google.bigtable.admin.v2.CopyBackupRequest.verify|verify} messages.
+                     * @param message CopyBackupRequest message or plain object to encode
                      * @param [writer] Writer to encode to
                      * @returns Writer
                      */
-                    public static encodeDelimited(message: google.bigtable.admin.v2.IRestoreInfo, writer?: $protobuf.Writer): $protobuf.Writer;
+                    public static encodeDelimited(message: google.bigtable.admin.v2.ICopyBackupRequest, writer?: $protobuf.Writer): $protobuf.Writer;
 
                     /**
-                     * Decodes a RestoreInfo message from the specified reader or buffer.
+                     * Decodes a CopyBackupRequest message from the specified reader or buffer.
                      * @param reader Reader or buffer to decode from
                      * @param [length] Message length if known beforehand
-                     * @returns RestoreInfo
+                     * @returns CopyBackupRequest
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.bigtable.admin.v2.RestoreInfo;
+                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.bigtable.admin.v2.CopyBackupRequest;
 
                     /**
-                     * Decodes a RestoreInfo message from the specified reader or buffer, length delimited.
+                     * Decodes a CopyBackupRequest message from the specified reader or buffer, length delimited.
                      * @param reader Reader or buffer to decode from
-                     * @returns RestoreInfo
+                     * @returns CopyBackupRequest
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.bigtable.admin.v2.RestoreInfo;
+                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.bigtable.admin.v2.CopyBackupRequest;
 
                     /**
-                     * Verifies a RestoreInfo message.
+                     * Verifies a CopyBackupRequest message.
                      * @param message Plain object to verify
                      * @returns `null` if valid, otherwise the reason why it is not
                      */
                     public static verify(message: { [k: string]: any }): (string|null);
 
                     /**
-                     * Creates a RestoreInfo message from a plain object. Also converts values to their respective internal types.
+                     * Creates a CopyBackupRequest message from a plain object. Also converts values to their respective internal types.
                      * @param object Plain object
-                     * @returns RestoreInfo
+                     * @returns CopyBackupRequest
                      */
-                    public static fromObject(object: { [k: string]: any }): google.bigtable.admin.v2.RestoreInfo;
+                    public static fromObject(object: { [k: string]: any }): google.bigtable.admin.v2.CopyBackupRequest;
 
                     /**
-                     * Creates a plain object from a RestoreInfo message. Also converts values to other types if specified.
-                     * @param message RestoreInfo
+                     * Creates a plain object from a CopyBackupRequest message. Also converts values to other types if specified.
+                     * @param message CopyBackupRequest
                      * @param [options] Conversion options
                      * @returns Plain object
                      */
-                    public static toObject(message: google.bigtable.admin.v2.RestoreInfo, options?: $protobuf.IConversionOptions): { [k: string]: any };
+                    public static toObject(message: google.bigtable.admin.v2.CopyBackupRequest, options?: $protobuf.IConversionOptions): { [k: string]: any };
 
                     /**
-                     * Converts this RestoreInfo to JSON.
+                     * Converts this CopyBackupRequest to JSON.
                      * @returns JSON object
                      */
                     public toJSON(): { [k: string]: any };
                 }
 
-                /** Properties of a Table. */
-                interface ITable {
+                /** Properties of a CopyBackupMetadata. */
+                interface ICopyBackupMetadata {
 
-                    /** Table name */
+                    /** CopyBackupMetadata name */
                     name?: (string|null);
 
-                    /** Table clusterStates */
-                    clusterStates?: ({ [k: string]: google.bigtable.admin.v2.Table.IClusterState }|null);
-
-                    /** Table columnFamilies */
-                    columnFamilies?: ({ [k: string]: google.bigtable.admin.v2.IColumnFamily }|null);
-
-                    /** Table granularity */
-                    granularity?: (google.bigtable.admin.v2.Table.TimestampGranularity|keyof typeof google.bigtable.admin.v2.Table.TimestampGranularity|null);
+                    /** CopyBackupMetadata sourceBackup */
+                    sourceBackup?: (string|null);
 
-                    /** Table restoreInfo */
-                    restoreInfo?: (google.bigtable.admin.v2.IRestoreInfo|null);
+                    /** CopyBackupMetadata progress */
+                    progress?: (google.bigtable.admin.v2.IOperationProgress|null);
                 }
 
-                /** Represents a Table. */
-                class Table implements ITable {
+                /** Represents a CopyBackupMetadata. */
+                class CopyBackupMetadata implements ICopyBackupMetadata {
 
                     /**
-                     * Constructs a new Table.
+                     * Constructs a new CopyBackupMetadata.
                      * @param [properties] Properties to set
                      */
-                    constructor(properties?: google.bigtable.admin.v2.ITable);
+                    constructor(properties?: google.bigtable.admin.v2.ICopyBackupMetadata);
 
-                    /** Table name. */
+                    /** CopyBackupMetadata name. */
                     public name: string;
 
-                    /** Table clusterStates. */
-                    public clusterStates: { [k: string]: google.bigtable.admin.v2.Table.IClusterState };
-
-                    /** Table columnFamilies. */
-                    public columnFamilies: { [k: string]: google.bigtable.admin.v2.IColumnFamily };
-
-                    /** Table granularity. */
-                    public granularity: (google.bigtable.admin.v2.Table.TimestampGranularity|keyof typeof google.bigtable.admin.v2.Table.TimestampGranularity);
+                    /** CopyBackupMetadata sourceBackup. */
+                    public sourceBackup: string;
 
-                    /** Table restoreInfo. */
-                    public restoreInfo?: (google.bigtable.admin.v2.IRestoreInfo|null);
+                    /** CopyBackupMetadata progress. */
+                    public progress?: (google.bigtable.admin.v2.IOperationProgress|null);
 
                     /**
-                     * Creates a new Table instance using the specified properties.
+                     * Creates a new CopyBackupMetadata instance using the specified properties.
                      * @param [properties] Properties to set
-                     * @returns Table instance
+                     * @returns CopyBackupMetadata instance
                      */
-                    public static create(properties?: google.bigtable.admin.v2.ITable): google.bigtable.admin.v2.Table;
+                    public static create(properties?: google.bigtable.admin.v2.ICopyBackupMetadata): google.bigtable.admin.v2.CopyBackupMetadata;
 
                     /**
-                     * Encodes the specified Table message. Does not implicitly {@link google.bigtable.admin.v2.Table.verify|verify} messages.
-                     * @param message Table message or plain object to encode
+                     * Encodes the specified CopyBackupMetadata message. Does not implicitly {@link google.bigtable.admin.v2.CopyBackupMetadata.verify|verify} messages.
+                     * @param message CopyBackupMetadata message or plain object to encode
                      * @param [writer] Writer to encode to
                      * @returns Writer
                      */
-                    public static encode(message: google.bigtable.admin.v2.ITable, writer?: $protobuf.Writer): $protobuf.Writer;
+                    public static encode(message: google.bigtable.admin.v2.ICopyBackupMetadata, writer?: $protobuf.Writer): $protobuf.Writer;
 
                     /**
-                     * Encodes the specified Table message, length delimited. Does not implicitly {@link google.bigtable.admin.v2.Table.verify|verify} messages.
-                     * @param message Table message or plain object to encode
+                     * Encodes the specified CopyBackupMetadata message, length delimited. Does not implicitly {@link google.bigtable.admin.v2.CopyBackupMetadata.verify|verify} messages.
+                     * @param message CopyBackupMetadata message or plain object to encode
                      * @param [writer] Writer to encode to
                      * @returns Writer
                      */
-                    public static encodeDelimited(message: google.bigtable.admin.v2.ITable, writer?: $protobuf.Writer): $protobuf.Writer;
+                    public static encodeDelimited(message: google.bigtable.admin.v2.ICopyBackupMetadata, writer?: $protobuf.Writer): $protobuf.Writer;
 
                     /**
-                     * Decodes a Table message from the specified reader or buffer.
+                     * Decodes a CopyBackupMetadata message from the specified reader or buffer.
                      * @param reader Reader or buffer to decode from
                      * @param [length] Message length if known beforehand
-                     * @returns Table
+                     * @returns CopyBackupMetadata
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.bigtable.admin.v2.Table;
+                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.bigtable.admin.v2.CopyBackupMetadata;
 
                     /**
-                     * Decodes a Table message from the specified reader or buffer, length delimited.
+                     * Decodes a CopyBackupMetadata message from the specified reader or buffer, length delimited.
                      * @param reader Reader or buffer to decode from
-                     * @returns Table
+                     * @returns CopyBackupMetadata
                      * @throws {Error} If the payload is not a reader or valid buffer
                      * @throws {$protobuf.util.ProtocolError} If required fields are missing
                      */
-                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.bigtable.admin.v2.Table;
+                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.bigtable.admin.v2.CopyBackupMetadata;
 
                     /**
-                     * Verifies a Table message.
+                     * Verifies a CopyBackupMetadata message.
                      * @param message Plain object to verify
                      * @returns `null` if valid, otherwise the reason why it is not
                      */
                     public static verify(message: { [k: string]: any }): (string|null);
 
                     /**
-                     * Creates a Table message from a plain object. Also converts values to their respective internal types.
+                     * Creates a CopyBackupMetadata message from a plain object. Also converts values to their respective internal types.
                      * @param object Plain object
-                     * @returns Table
+                     * @returns CopyBackupMetadata
                      */
-                    public static fromObject(object: { [k: string]: any }): google.bigtable.admin.v2.Table;
+                    public static fromObject(object: { [k: string]: any }): google.bigtable.admin.v2.CopyBackupMetadata;
 
                     /**
-                     * Creates a plain object from a Table message. Also converts values to other types if specified.
-                     * @param message Table
+                     * Creates a plain object from a CopyBackupMetadata message. Also converts values to other types if specified.
+                     * @param message CopyBackupMetadata
+                     * @param [options] Conversion options
+                     * @returns Plain object
+                     */
+                    public static toObject(message: google.bigtable.admin.v2.CopyBackupMetadata, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                    /**
+                     * Converts this CopyBackupMetadata to JSON.
+                     * @returns JSON object
+                     */
+                    public toJSON(): { [k: string]: any };
+                }
+
+                /** Properties of a RestoreInfo. */
+                interface IRestoreInfo {
+
+                    /** RestoreInfo sourceType */
+                    sourceType?: (google.bigtable.admin.v2.RestoreSourceType|keyof typeof google.bigtable.admin.v2.RestoreSourceType|null);
+
+                    /** RestoreInfo backupInfo */
+                    backupInfo?: (google.bigtable.admin.v2.IBackupInfo|null);
+                }
+
+                /** Represents a RestoreInfo. */
+                class RestoreInfo implements IRestoreInfo {
+
+                    /**
+                     * Constructs a new RestoreInfo.
+                     * @param [properties] Properties to set
+                     */
+                    constructor(properties?: google.bigtable.admin.v2.IRestoreInfo);
+
+                    /** RestoreInfo sourceType. */
+                    public sourceType: (google.bigtable.admin.v2.RestoreSourceType|keyof typeof google.bigtable.admin.v2.RestoreSourceType);
+
+                    /** RestoreInfo backupInfo. */
+                    public backupInfo?: (google.bigtable.admin.v2.IBackupInfo|null);
+
+                    /** RestoreInfo sourceInfo. */
+                    public sourceInfo?: "backupInfo";
+
+                    /**
+                     * Creates a new RestoreInfo instance using the specified properties.
+                     * @param [properties] Properties to set
+                     * @returns RestoreInfo instance
+                     */
+                    public static create(properties?: google.bigtable.admin.v2.IRestoreInfo): google.bigtable.admin.v2.RestoreInfo;
+
+                    /**
+                     * Encodes the specified RestoreInfo message. Does not implicitly {@link google.bigtable.admin.v2.RestoreInfo.verify|verify} messages.
+                     * @param message RestoreInfo message or plain object to encode
+                     * @param [writer] Writer to encode to
+                     * @returns Writer
+                     */
+                    public static encode(message: google.bigtable.admin.v2.IRestoreInfo, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                    /**
+                     * Encodes the specified RestoreInfo message, length delimited. Does not implicitly {@link google.bigtable.admin.v2.RestoreInfo.verify|verify} messages.
+                     * @param message RestoreInfo message or plain object to encode
+                     * @param [writer] Writer to encode to
+                     * @returns Writer
+                     */
+                    public static encodeDelimited(message: google.bigtable.admin.v2.IRestoreInfo, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                    /**
+                     * Decodes a RestoreInfo message from the specified reader or buffer.
+                     * @param reader Reader or buffer to decode from
+                     * @param [length] Message length if known beforehand
+                     * @returns RestoreInfo
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.bigtable.admin.v2.RestoreInfo;
+
+                    /**
+                     * Decodes a RestoreInfo message from the specified reader or buffer, length delimited.
+                     * @param reader Reader or buffer to decode from
+                     * @returns RestoreInfo
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.bigtable.admin.v2.RestoreInfo;
+
+                    /**
+                     * Verifies a RestoreInfo message.
+                     * @param message Plain object to verify
+                     * @returns `null` if valid, otherwise the reason why it is not
+                     */
+                    public static verify(message: { [k: string]: any }): (string|null);
+
+                    /**
+                     * Creates a RestoreInfo message from a plain object. Also converts values to their respective internal types.
+                     * @param object Plain object
+                     * @returns RestoreInfo
+                     */
+                    public static fromObject(object: { [k: string]: any }): google.bigtable.admin.v2.RestoreInfo;
+
+                    /**
+                     * Creates a plain object from a RestoreInfo message. Also converts values to other types if specified.
+                     * @param message RestoreInfo
+                     * @param [options] Conversion options
+                     * @returns Plain object
+                     */
+                    public static toObject(message: google.bigtable.admin.v2.RestoreInfo, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                    /**
+                     * Converts this RestoreInfo to JSON.
+                     * @returns JSON object
+                     */
+                    public toJSON(): { [k: string]: any };
+                }
+
+                /** Properties of a Table. */
+                interface ITable {
+
+                    /** Table name */
+                    name?: (string|null);
+
+                    /** Table clusterStates */
+                    clusterStates?: ({ [k: string]: google.bigtable.admin.v2.Table.IClusterState }|null);
+
+                    /** Table columnFamilies */
+                    columnFamilies?: ({ [k: string]: google.bigtable.admin.v2.IColumnFamily }|null);
+
+                    /** Table granularity */
+                    granularity?: (google.bigtable.admin.v2.Table.TimestampGranularity|keyof typeof google.bigtable.admin.v2.Table.TimestampGranularity|null);
+
+                    /** Table restoreInfo */
+                    restoreInfo?: (google.bigtable.admin.v2.IRestoreInfo|null);
+                }
+
+                /** Represents a Table. */
+                class Table implements ITable {
+
+                    /**
+                     * Constructs a new Table.
+                     * @param [properties] Properties to set
+                     */
+                    constructor(properties?: google.bigtable.admin.v2.ITable);
+
+                    /** Table name. */
+                    public name: string;
+
+                    /** Table clusterStates. */
+                    public clusterStates: { [k: string]: google.bigtable.admin.v2.Table.IClusterState };
+
+                    /** Table columnFamilies. */
+                    public columnFamilies: { [k: string]: google.bigtable.admin.v2.IColumnFamily };
+
+                    /** Table granularity. */
+                    public granularity: (google.bigtable.admin.v2.Table.TimestampGranularity|keyof typeof google.bigtable.admin.v2.Table.TimestampGranularity);
+
+                    /** Table restoreInfo. */
+                    public restoreInfo?: (google.bigtable.admin.v2.IRestoreInfo|null);
+
+                    /**
+                     * Creates a new Table instance using the specified properties.
+                     * @param [properties] Properties to set
+                     * @returns Table instance
+                     */
+                    public static create(properties?: google.bigtable.admin.v2.ITable): google.bigtable.admin.v2.Table;
+
+                    /**
+                     * Encodes the specified Table message. Does not implicitly {@link google.bigtable.admin.v2.Table.verify|verify} messages.
+                     * @param message Table message or plain object to encode
+                     * @param [writer] Writer to encode to
+                     * @returns Writer
+                     */
+                    public static encode(message: google.bigtable.admin.v2.ITable, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                    /**
+                     * Encodes the specified Table message, length delimited. Does not implicitly {@link google.bigtable.admin.v2.Table.verify|verify} messages.
+                     * @param message Table message or plain object to encode
+                     * @param [writer] Writer to encode to
+                     * @returns Writer
+                     */
+                    public static encodeDelimited(message: google.bigtable.admin.v2.ITable, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                    /**
+                     * Decodes a Table message from the specified reader or buffer.
+                     * @param reader Reader or buffer to decode from
+                     * @param [length] Message length if known beforehand
+                     * @returns Table
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.bigtable.admin.v2.Table;
+
+                    /**
+                     * Decodes a Table message from the specified reader or buffer, length delimited.
+                     * @param reader Reader or buffer to decode from
+                     * @returns Table
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.bigtable.admin.v2.Table;
+
+                    /**
+                     * Verifies a Table message.
+                     * @param message Plain object to verify
+                     * @returns `null` if valid, otherwise the reason why it is not
+                     */
+                    public static verify(message: { [k: string]: any }): (string|null);
+
+                    /**
+                     * Creates a Table message from a plain object. Also converts values to their respective internal types.
+                     * @param object Plain object
+                     * @returns Table
+                     */
+                    public static fromObject(object: { [k: string]: any }): google.bigtable.admin.v2.Table;
+
+                    /**
+                     * Creates a plain object from a Table message. Also converts values to other types if specified.
+                     * @param message Table
                      * @param [options] Conversion options
                      * @returns Plain object
                      */
@@ -9383,49 +9842,49 @@ export namespace google {
             namespace Bigtable {
 
                 /**
-                 * Callback as used by {@link google.bigtable.v2.Bigtable#readRows}.
+                 * Callback as used by {@link google.bigtable.v2.Bigtable|readRows}.
                  * @param error Error, if any
                  * @param [response] ReadRowsResponse
                  */
                 type ReadRowsCallback = (error: (Error|null), response?: google.bigtable.v2.ReadRowsResponse) => void;
 
                 /**
-                 * Callback as used by {@link google.bigtable.v2.Bigtable#sampleRowKeys}.
+                 * Callback as used by {@link google.bigtable.v2.Bigtable|sampleRowKeys}.
                  * @param error Error, if any
                  * @param [response] SampleRowKeysResponse
                  */
                 type SampleRowKeysCallback = (error: (Error|null), response?: google.bigtable.v2.SampleRowKeysResponse) => void;
 
                 /**
-                 * Callback as used by {@link google.bigtable.v2.Bigtable#mutateRow}.
+                 * Callback as used by {@link google.bigtable.v2.Bigtable|mutateRow}.
                  * @param error Error, if any
                  * @param [response] MutateRowResponse
                  */
                 type MutateRowCallback = (error: (Error|null), response?: google.bigtable.v2.MutateRowResponse) => void;
 
                 /**
-                 * Callback as used by {@link google.bigtable.v2.Bigtable#mutateRows}.
+                 * Callback as used by {@link google.bigtable.v2.Bigtable|mutateRows}.
                  * @param error Error, if any
                  * @param [response] MutateRowsResponse
                  */
                 type MutateRowsCallback = (error: (Error|null), response?: google.bigtable.v2.MutateRowsResponse) => void;
 
                 /**
-                 * Callback as used by {@link google.bigtable.v2.Bigtable#checkAndMutateRow}.
+                 * Callback as used by {@link google.bigtable.v2.Bigtable|checkAndMutateRow}.
                  * @param error Error, if any
                  * @param [response] CheckAndMutateRowResponse
                  */
                 type CheckAndMutateRowCallback = (error: (Error|null), response?: google.bigtable.v2.CheckAndMutateRowResponse) => void;
 
                 /**
-                 * Callback as used by {@link google.bigtable.v2.Bigtable#pingAndWarm}.
+                 * Callback as used by {@link google.bigtable.v2.Bigtable|pingAndWarm}.
                  * @param error Error, if any
                  * @param [response] PingAndWarmResponse
                  */
                 type PingAndWarmCallback = (error: (Error|null), response?: google.bigtable.v2.PingAndWarmResponse) => void;
 
                 /**
-                 * Callback as used by {@link google.bigtable.v2.Bigtable#readModifyWriteRow}.
+                 * Callback as used by {@link google.bigtable.v2.Bigtable|readModifyWriteRow}.
                  * @param error Error, if any
                  * @param [response] ReadModifyWriteRowResponse
                  */
@@ -15808,6 +16267,9 @@ export namespace google {
             /** FieldOptions lazy */
             lazy?: (boolean|null);
 
+            /** FieldOptions unverifiedLazy */
+            unverifiedLazy?: (boolean|null);
+
             /** FieldOptions deprecated */
             deprecated?: (boolean|null);
 
@@ -15845,6 +16307,9 @@ export namespace google {
             /** FieldOptions lazy. */
             public lazy: boolean;
 
+            /** FieldOptions unverifiedLazy. */
+            public unverifiedLazy: boolean;
+
             /** FieldOptions deprecated. */
             public deprecated: boolean;
 
@@ -17185,53 +17650,143 @@ export namespace google {
             public toJSON(): { [k: string]: any };
         }
 
-        /** Properties of an Any. */
-        interface IAny {
-
-            /** Any type_url */
-            type_url?: (string|null);
+        /** Properties of a FieldMask. */
+        interface IFieldMask {
 
-            /** Any value */
-            value?: (Uint8Array|string|null);
+            /** FieldMask paths */
+            paths?: (string[]|null);
         }
 
-        /** Represents an Any. */
-        class Any implements IAny {
+        /** Represents a FieldMask. */
+        class FieldMask implements IFieldMask {
 
             /**
-             * Constructs a new Any.
+             * Constructs a new FieldMask.
              * @param [properties] Properties to set
              */
-            constructor(properties?: google.protobuf.IAny);
-
-            /** Any type_url. */
-            public type_url: string;
+            constructor(properties?: google.protobuf.IFieldMask);
 
-            /** Any value. */
-            public value: (Uint8Array|string);
+            /** FieldMask paths. */
+            public paths: string[];
 
             /**
-             * Creates a new Any instance using the specified properties.
+             * Creates a new FieldMask instance using the specified properties.
              * @param [properties] Properties to set
-             * @returns Any instance
+             * @returns FieldMask instance
              */
-            public static create(properties?: google.protobuf.IAny): google.protobuf.Any;
+            public static create(properties?: google.protobuf.IFieldMask): google.protobuf.FieldMask;
 
             /**
-             * Encodes the specified Any message. Does not implicitly {@link google.protobuf.Any.verify|verify} messages.
-             * @param message Any message or plain object to encode
+             * Encodes the specified FieldMask message. Does not implicitly {@link google.protobuf.FieldMask.verify|verify} messages.
+             * @param message FieldMask message or plain object to encode
              * @param [writer] Writer to encode to
              * @returns Writer
              */
-            public static encode(message: google.protobuf.IAny, writer?: $protobuf.Writer): $protobuf.Writer;
+            public static encode(message: google.protobuf.IFieldMask, writer?: $protobuf.Writer): $protobuf.Writer;
 
             /**
-             * Encodes the specified Any message, length delimited. Does not implicitly {@link google.protobuf.Any.verify|verify} messages.
-             * @param message Any message or plain object to encode
+             * Encodes the specified FieldMask message, length delimited. Does not implicitly {@link google.protobuf.FieldMask.verify|verify} messages.
+             * @param message FieldMask message or plain object to encode
              * @param [writer] Writer to encode to
              * @returns Writer
              */
-            public static encodeDelimited(message: google.protobuf.IAny, writer?: $protobuf.Writer): $protobuf.Writer;
+            public static encodeDelimited(message: google.protobuf.IFieldMask, writer?: $protobuf.Writer): $protobuf.Writer;
+
+            /**
+             * Decodes a FieldMask message from the specified reader or buffer.
+             * @param reader Reader or buffer to decode from
+             * @param [length] Message length if known beforehand
+             * @returns FieldMask
+             * @throws {Error} If the payload is not a reader or valid buffer
+             * @throws {$protobuf.util.ProtocolError} If required fields are missing
+             */
+            public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.protobuf.FieldMask;
+
+            /**
+             * Decodes a FieldMask message from the specified reader or buffer, length delimited.
+             * @param reader Reader or buffer to decode from
+             * @returns FieldMask
+             * @throws {Error} If the payload is not a reader or valid buffer
+             * @throws {$protobuf.util.ProtocolError} If required fields are missing
+             */
+            public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.protobuf.FieldMask;
+
+            /**
+             * Verifies a FieldMask message.
+             * @param message Plain object to verify
+             * @returns `null` if valid, otherwise the reason why it is not
+             */
+            public static verify(message: { [k: string]: any }): (string|null);
+
+            /**
+             * Creates a FieldMask message from a plain object. Also converts values to their respective internal types.
+             * @param object Plain object
+             * @returns FieldMask
+             */
+            public static fromObject(object: { [k: string]: any }): google.protobuf.FieldMask;
+
+            /**
+             * Creates a plain object from a FieldMask message. Also converts values to other types if specified.
+             * @param message FieldMask
+             * @param [options] Conversion options
+             * @returns Plain object
+             */
+            public static toObject(message: google.protobuf.FieldMask, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+            /**
+             * Converts this FieldMask to JSON.
+             * @returns JSON object
+             */
+            public toJSON(): { [k: string]: any };
+        }
+
+        /** Properties of an Any. */
+        interface IAny {
+
+            /** Any type_url */
+            type_url?: (string|null);
+
+            /** Any value */
+            value?: (Uint8Array|string|null);
+        }
+
+        /** Represents an Any. */
+        class Any implements IAny {
+
+            /**
+             * Constructs a new Any.
+             * @param [properties] Properties to set
+             */
+            constructor(properties?: google.protobuf.IAny);
+
+            /** Any type_url. */
+            public type_url: string;
+
+            /** Any value. */
+            public value: (Uint8Array|string);
+
+            /**
+             * Creates a new Any instance using the specified properties.
+             * @param [properties] Properties to set
+             * @returns Any instance
+             */
+            public static create(properties?: google.protobuf.IAny): google.protobuf.Any;
+
+            /**
+             * Encodes the specified Any message. Does not implicitly {@link google.protobuf.Any.verify|verify} messages.
+             * @param message Any message or plain object to encode
+             * @param [writer] Writer to encode to
+             * @returns Writer
+             */
+            public static encode(message: google.protobuf.IAny, writer?: $protobuf.Writer): $protobuf.Writer;
+
+            /**
+             * Encodes the specified Any message, length delimited. Does not implicitly {@link google.protobuf.Any.verify|verify} messages.
+             * @param message Any message or plain object to encode
+             * @param [writer] Writer to encode to
+             * @returns Writer
+             */
+            public static encodeDelimited(message: google.protobuf.IAny, writer?: $protobuf.Writer): $protobuf.Writer;
 
             /**
              * Decodes an Any message from the specified reader or buffer.
@@ -17461,96 +18016,6 @@ export namespace google {
             public toJSON(): { [k: string]: any };
         }
 
-        /** Properties of a FieldMask. */
-        interface IFieldMask {
-
-            /** FieldMask paths */
-            paths?: (string[]|null);
-        }
-
-        /** Represents a FieldMask. */
-        class FieldMask implements IFieldMask {
-
-            /**
-             * Constructs a new FieldMask.
-             * @param [properties] Properties to set
-             */
-            constructor(properties?: google.protobuf.IFieldMask);
-
-            /** FieldMask paths. */
-            public paths: string[];
-
-            /**
-             * Creates a new FieldMask instance using the specified properties.
-             * @param [properties] Properties to set
-             * @returns FieldMask instance
-             */
-            public static create(properties?: google.protobuf.IFieldMask): google.protobuf.FieldMask;
-
-            /**
-             * Encodes the specified FieldMask message. Does not implicitly {@link google.protobuf.FieldMask.verify|verify} messages.
-             * @param message FieldMask message or plain object to encode
-             * @param [writer] Writer to encode to
-             * @returns Writer
-             */
-            public static encode(message: google.protobuf.IFieldMask, writer?: $protobuf.Writer): $protobuf.Writer;
-
-            /**
-             * Encodes the specified FieldMask message, length delimited. Does not implicitly {@link google.protobuf.FieldMask.verify|verify} messages.
-             * @param message FieldMask message or plain object to encode
-             * @param [writer] Writer to encode to
-             * @returns Writer
-             */
-            public static encodeDelimited(message: google.protobuf.IFieldMask, writer?: $protobuf.Writer): $protobuf.Writer;
-
-            /**
-             * Decodes a FieldMask message from the specified reader or buffer.
-             * @param reader Reader or buffer to decode from
-             * @param [length] Message length if known beforehand
-             * @returns FieldMask
-             * @throws {Error} If the payload is not a reader or valid buffer
-             * @throws {$protobuf.util.ProtocolError} If required fields are missing
-             */
-            public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.protobuf.FieldMask;
-
-            /**
-             * Decodes a FieldMask message from the specified reader or buffer, length delimited.
-             * @param reader Reader or buffer to decode from
-             * @returns FieldMask
-             * @throws {Error} If the payload is not a reader or valid buffer
-             * @throws {$protobuf.util.ProtocolError} If required fields are missing
-             */
-            public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.protobuf.FieldMask;
-
-            /**
-             * Verifies a FieldMask message.
-             * @param message Plain object to verify
-             * @returns `null` if valid, otherwise the reason why it is not
-             */
-            public static verify(message: { [k: string]: any }): (string|null);
-
-            /**
-             * Creates a FieldMask message from a plain object. Also converts values to their respective internal types.
-             * @param object Plain object
-             * @returns FieldMask
-             */
-            public static fromObject(object: { [k: string]: any }): google.protobuf.FieldMask;
-
-            /**
-             * Creates a plain object from a FieldMask message. Also converts values to other types if specified.
-             * @param message FieldMask
-             * @param [options] Conversion options
-             * @returns Plain object
-             */
-            public static toObject(message: google.protobuf.FieldMask, options?: $protobuf.IConversionOptions): { [k: string]: any };
-
-            /**
-             * Converts this FieldMask to JSON.
-             * @returns JSON object
-             */
-            public toJSON(): { [k: string]: any };
-        }
-
         /** Properties of a DoubleValue. */
         interface IDoubleValue {
 
@@ -18434,21 +18899,21 @@ export namespace google {
             namespace IAMPolicy {
 
                 /**
-                 * Callback as used by {@link google.iam.v1.IAMPolicy#setIamPolicy}.
+                 * Callback as used by {@link google.iam.v1.IAMPolicy|setIamPolicy}.
                  * @param error Error, if any
                  * @param [response] Policy
                  */
                 type SetIamPolicyCallback = (error: (Error|null), response?: google.iam.v1.Policy) => void;
 
                 /**
-                 * Callback as used by {@link google.iam.v1.IAMPolicy#getIamPolicy}.
+                 * Callback as used by {@link google.iam.v1.IAMPolicy|getIamPolicy}.
                  * @param error Error, if any
                  * @param [response] Policy
                  */
                 type GetIamPolicyCallback = (error: (Error|null), response?: google.iam.v1.Policy) => void;
 
                 /**
-                 * Callback as used by {@link google.iam.v1.IAMPolicy#testIamPermissions}.
+                 * Callback as used by {@link google.iam.v1.IAMPolicy|testIamPermissions}.
                  * @param error Error, if any
                  * @param [response] TestIamPermissionsResponse
                  */
@@ -18463,6 +18928,9 @@ export namespace google {
 
                 /** SetIamPolicyRequest policy */
                 policy?: (google.iam.v1.IPolicy|null);
+
+                /** SetIamPolicyRequest updateMask */
+                updateMask?: (google.protobuf.IFieldMask|null);
             }
 
             /** Represents a SetIamPolicyRequest. */
@@ -18480,6 +18948,9 @@ export namespace google {
                 /** SetIamPolicyRequest policy. */
                 public policy?: (google.iam.v1.IPolicy|null);
 
+                /** SetIamPolicyRequest updateMask. */
+                public updateMask?: (google.protobuf.IFieldMask|null);
+
                 /**
                  * Creates a new SetIamPolicyRequest instance using the specified properties.
                  * @param [properties] Properties to set
@@ -18932,6 +19403,9 @@ export namespace google {
                 /** Policy bindings */
                 bindings?: (google.iam.v1.IBinding[]|null);
 
+                /** Policy auditConfigs */
+                auditConfigs?: (google.iam.v1.IAuditConfig[]|null);
+
                 /** Policy etag */
                 etag?: (Uint8Array|string|null);
             }
@@ -18951,6 +19425,9 @@ export namespace google {
                 /** Policy bindings. */
                 public bindings: google.iam.v1.IBinding[];
 
+                /** Policy auditConfigs. */
+                public auditConfigs: google.iam.v1.IAuditConfig[];
+
                 /** Policy etag. */
                 public etag: (Uint8Array|string);
 
@@ -19127,6 +19604,209 @@ export namespace google {
                 public toJSON(): { [k: string]: any };
             }
 
+            /** Properties of an AuditConfig. */
+            interface IAuditConfig {
+
+                /** AuditConfig service */
+                service?: (string|null);
+
+                /** AuditConfig auditLogConfigs */
+                auditLogConfigs?: (google.iam.v1.IAuditLogConfig[]|null);
+            }
+
+            /** Represents an AuditConfig. */
+            class AuditConfig implements IAuditConfig {
+
+                /**
+                 * Constructs a new AuditConfig.
+                 * @param [properties] Properties to set
+                 */
+                constructor(properties?: google.iam.v1.IAuditConfig);
+
+                /** AuditConfig service. */
+                public service: string;
+
+                /** AuditConfig auditLogConfigs. */
+                public auditLogConfigs: google.iam.v1.IAuditLogConfig[];
+
+                /**
+                 * Creates a new AuditConfig instance using the specified properties.
+                 * @param [properties] Properties to set
+                 * @returns AuditConfig instance
+                 */
+                public static create(properties?: google.iam.v1.IAuditConfig): google.iam.v1.AuditConfig;
+
+                /**
+                 * Encodes the specified AuditConfig message. Does not implicitly {@link google.iam.v1.AuditConfig.verify|verify} messages.
+                 * @param message AuditConfig message or plain object to encode
+                 * @param [writer] Writer to encode to
+                 * @returns Writer
+                 */
+                public static encode(message: google.iam.v1.IAuditConfig, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                /**
+                 * Encodes the specified AuditConfig message, length delimited. Does not implicitly {@link google.iam.v1.AuditConfig.verify|verify} messages.
+                 * @param message AuditConfig message or plain object to encode
+                 * @param [writer] Writer to encode to
+                 * @returns Writer
+                 */
+                public static encodeDelimited(message: google.iam.v1.IAuditConfig, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                /**
+                 * Decodes an AuditConfig message from the specified reader or buffer.
+                 * @param reader Reader or buffer to decode from
+                 * @param [length] Message length if known beforehand
+                 * @returns AuditConfig
+                 * @throws {Error} If the payload is not a reader or valid buffer
+                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                 */
+                public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.iam.v1.AuditConfig;
+
+                /**
+                 * Decodes an AuditConfig message from the specified reader or buffer, length delimited.
+                 * @param reader Reader or buffer to decode from
+                 * @returns AuditConfig
+                 * @throws {Error} If the payload is not a reader or valid buffer
+                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                 */
+                public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.iam.v1.AuditConfig;
+
+                /**
+                 * Verifies an AuditConfig message.
+                 * @param message Plain object to verify
+                 * @returns `null` if valid, otherwise the reason why it is not
+                 */
+                public static verify(message: { [k: string]: any }): (string|null);
+
+                /**
+                 * Creates an AuditConfig message from a plain object. Also converts values to their respective internal types.
+                 * @param object Plain object
+                 * @returns AuditConfig
+                 */
+                public static fromObject(object: { [k: string]: any }): google.iam.v1.AuditConfig;
+
+                /**
+                 * Creates a plain object from an AuditConfig message. Also converts values to other types if specified.
+                 * @param message AuditConfig
+                 * @param [options] Conversion options
+                 * @returns Plain object
+                 */
+                public static toObject(message: google.iam.v1.AuditConfig, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                /**
+                 * Converts this AuditConfig to JSON.
+                 * @returns JSON object
+                 */
+                public toJSON(): { [k: string]: any };
+            }
+
+            /** Properties of an AuditLogConfig. */
+            interface IAuditLogConfig {
+
+                /** AuditLogConfig logType */
+                logType?: (google.iam.v1.AuditLogConfig.LogType|keyof typeof google.iam.v1.AuditLogConfig.LogType|null);
+
+                /** AuditLogConfig exemptedMembers */
+                exemptedMembers?: (string[]|null);
+            }
+
+            /** Represents an AuditLogConfig. */
+            class AuditLogConfig implements IAuditLogConfig {
+
+                /**
+                 * Constructs a new AuditLogConfig.
+                 * @param [properties] Properties to set
+                 */
+                constructor(properties?: google.iam.v1.IAuditLogConfig);
+
+                /** AuditLogConfig logType. */
+                public logType: (google.iam.v1.AuditLogConfig.LogType|keyof typeof google.iam.v1.AuditLogConfig.LogType);
+
+                /** AuditLogConfig exemptedMembers. */
+                public exemptedMembers: string[];
+
+                /**
+                 * Creates a new AuditLogConfig instance using the specified properties.
+                 * @param [properties] Properties to set
+                 * @returns AuditLogConfig instance
+                 */
+                public static create(properties?: google.iam.v1.IAuditLogConfig): google.iam.v1.AuditLogConfig;
+
+                /**
+                 * Encodes the specified AuditLogConfig message. Does not implicitly {@link google.iam.v1.AuditLogConfig.verify|verify} messages.
+                 * @param message AuditLogConfig message or plain object to encode
+                 * @param [writer] Writer to encode to
+                 * @returns Writer
+                 */
+                public static encode(message: google.iam.v1.IAuditLogConfig, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                /**
+                 * Encodes the specified AuditLogConfig message, length delimited. Does not implicitly {@link google.iam.v1.AuditLogConfig.verify|verify} messages.
+                 * @param message AuditLogConfig message or plain object to encode
+                 * @param [writer] Writer to encode to
+                 * @returns Writer
+                 */
+                public static encodeDelimited(message: google.iam.v1.IAuditLogConfig, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                /**
+                 * Decodes an AuditLogConfig message from the specified reader or buffer.
+                 * @param reader Reader or buffer to decode from
+                 * @param [length] Message length if known beforehand
+                 * @returns AuditLogConfig
+                 * @throws {Error} If the payload is not a reader or valid buffer
+                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                 */
+                public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.iam.v1.AuditLogConfig;
+
+                /**
+                 * Decodes an AuditLogConfig message from the specified reader or buffer, length delimited.
+                 * @param reader Reader or buffer to decode from
+                 * @returns AuditLogConfig
+                 * @throws {Error} If the payload is not a reader or valid buffer
+                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                 */
+                public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.iam.v1.AuditLogConfig;
+
+                /**
+                 * Verifies an AuditLogConfig message.
+                 * @param message Plain object to verify
+                 * @returns `null` if valid, otherwise the reason why it is not
+                 */
+                public static verify(message: { [k: string]: any }): (string|null);
+
+                /**
+                 * Creates an AuditLogConfig message from a plain object. Also converts values to their respective internal types.
+                 * @param object Plain object
+                 * @returns AuditLogConfig
+                 */
+                public static fromObject(object: { [k: string]: any }): google.iam.v1.AuditLogConfig;
+
+                /**
+                 * Creates a plain object from an AuditLogConfig message. Also converts values to other types if specified.
+                 * @param message AuditLogConfig
+                 * @param [options] Conversion options
+                 * @returns Plain object
+                 */
+                public static toObject(message: google.iam.v1.AuditLogConfig, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                /**
+                 * Converts this AuditLogConfig to JSON.
+                 * @returns JSON object
+                 */
+                public toJSON(): { [k: string]: any };
+            }
+
+            namespace AuditLogConfig {
+
+                /** LogType enum. */
+                enum LogType {
+                    LOG_TYPE_UNSPECIFIED = 0,
+                    ADMIN_READ = 1,
+                    DATA_WRITE = 2,
+                    DATA_READ = 3
+                }
+            }
+
             /** Properties of a PolicyDelta. */
             interface IPolicyDelta {
 
@@ -19670,35 +20350,35 @@ export namespace google {
         namespace Operations {
 
             /**
-             * Callback as used by {@link google.longrunning.Operations#listOperations}.
+             * Callback as used by {@link google.longrunning.Operations|listOperations}.
              * @param error Error, if any
              * @param [response] ListOperationsResponse
              */
             type ListOperationsCallback = (error: (Error|null), response?: google.longrunning.ListOperationsResponse) => void;
 
             /**
-             * Callback as used by {@link google.longrunning.Operations#getOperation}.
+             * Callback as used by {@link google.longrunning.Operations|getOperation}.
              * @param error Error, if any
              * @param [response] Operation
              */
             type GetOperationCallback = (error: (Error|null), response?: google.longrunning.Operation) => void;
 
             /**
-             * Callback as used by {@link google.longrunning.Operations#deleteOperation}.
+             * Callback as used by {@link google.longrunning.Operations|deleteOperation}.
              * @param error Error, if any
              * @param [response] Empty
              */
             type DeleteOperationCallback = (error: (Error|null), response?: google.protobuf.Empty) => void;
 
             /**
-             * Callback as used by {@link google.longrunning.Operations#cancelOperation}.
+             * Callback as used by {@link google.longrunning.Operations|cancelOperation}.
              * @param error Error, if any
              * @param [response] Empty
              */
             type CancelOperationCallback = (error: (Error|null), response?: google.protobuf.Empty) => void;
 
             /**
-             * Callback as used by {@link google.longrunning.Operations#waitOperation}.
+             * Callback as used by {@link google.longrunning.Operations|waitOperation}.
              * @param error Error, if any
              * @param [response] Operation
              */
diff --git a/protos/protos.js b/protos/protos.js
index f41e06fd0..44054590b 100644
--- a/protos/protos.js
+++ b/protos/protos.js
@@ -99,7 +99,7 @@
                         };
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#createInstance}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|createInstance}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef CreateInstanceCallback
                          * @type {function}
@@ -132,7 +132,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#getInstance}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|getInstance}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef GetInstanceCallback
                          * @type {function}
@@ -165,7 +165,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#listInstances}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|listInstances}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef ListInstancesCallback
                          * @type {function}
@@ -198,7 +198,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#updateInstance}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|updateInstance}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef UpdateInstanceCallback
                          * @type {function}
@@ -231,7 +231,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#partialUpdateInstance}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|partialUpdateInstance}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef PartialUpdateInstanceCallback
                          * @type {function}
@@ -264,7 +264,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#deleteInstance}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|deleteInstance}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef DeleteInstanceCallback
                          * @type {function}
@@ -297,7 +297,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#createCluster}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|createCluster}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef CreateClusterCallback
                          * @type {function}
@@ -330,7 +330,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#getCluster}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|getCluster}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef GetClusterCallback
                          * @type {function}
@@ -363,7 +363,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#listClusters}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|listClusters}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef ListClustersCallback
                          * @type {function}
@@ -396,7 +396,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#updateCluster}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|updateCluster}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef UpdateClusterCallback
                          * @type {function}
@@ -429,7 +429,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#partialUpdateCluster}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|partialUpdateCluster}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef PartialUpdateClusterCallback
                          * @type {function}
@@ -462,7 +462,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#deleteCluster}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|deleteCluster}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef DeleteClusterCallback
                          * @type {function}
@@ -495,7 +495,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#createAppProfile}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|createAppProfile}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef CreateAppProfileCallback
                          * @type {function}
@@ -528,7 +528,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#getAppProfile}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|getAppProfile}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef GetAppProfileCallback
                          * @type {function}
@@ -561,7 +561,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#listAppProfiles}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|listAppProfiles}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef ListAppProfilesCallback
                          * @type {function}
@@ -594,7 +594,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#updateAppProfile}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|updateAppProfile}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef UpdateAppProfileCallback
                          * @type {function}
@@ -627,7 +627,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#deleteAppProfile}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|deleteAppProfile}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef DeleteAppProfileCallback
                          * @type {function}
@@ -660,7 +660,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#getIamPolicy}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|getIamPolicy}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef GetIamPolicyCallback
                          * @type {function}
@@ -693,7 +693,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#setIamPolicy}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|setIamPolicy}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef SetIamPolicyCallback
                          * @type {function}
@@ -726,7 +726,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#testIamPermissions}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|testIamPermissions}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef TestIamPermissionsCallback
                          * @type {function}
@@ -759,7 +759,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin#listHotTablets}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableInstanceAdmin|listHotTablets}.
                          * @memberof google.bigtable.admin.v2.BigtableInstanceAdmin
                          * @typedef ListHotTabletsCallback
                          * @type {function}
@@ -7178,6 +7178,7 @@
                          * @property {google.bigtable.admin.v2.Instance.Type|null} [type] Instance type
                          * @property {Object.<string,string>|null} [labels] Instance labels
                          * @property {google.protobuf.ITimestamp|null} [createTime] Instance createTime
+                         * @property {boolean|null} [satisfiesPzs] Instance satisfiesPzs
                          */
     
                         /**
@@ -7244,6 +7245,28 @@
                          */
                         Instance.prototype.createTime = null;
     
+                        /**
+                         * Instance satisfiesPzs.
+                         * @member {boolean|null|undefined} satisfiesPzs
+                         * @memberof google.bigtable.admin.v2.Instance
+                         * @instance
+                         */
+                        Instance.prototype.satisfiesPzs = null;
+    
+                        // OneOf field names bound to virtual getters and setters
+                        var $oneOfFields;
+    
+                        /**
+                         * Instance _satisfiesPzs.
+                         * @member {"satisfiesPzs"|undefined} _satisfiesPzs
+                         * @memberof google.bigtable.admin.v2.Instance
+                         * @instance
+                         */
+                        Object.defineProperty(Instance.prototype, "_satisfiesPzs", {
+                            get: $util.oneOfGetter($oneOfFields = ["satisfiesPzs"]),
+                            set: $util.oneOfSetter($oneOfFields)
+                        });
+    
                         /**
                          * Creates a new Instance instance using the specified properties.
                          * @function create
@@ -7281,6 +7304,8 @@
                                     writer.uint32(/* id 5, wireType 2 =*/42).fork().uint32(/* id 1, wireType 2 =*/10).string(keys[i]).uint32(/* id 2, wireType 2 =*/18).string(message.labels[keys[i]]).ldelim();
                             if (message.createTime != null && Object.hasOwnProperty.call(message, "createTime"))
                                 $root.google.protobuf.Timestamp.encode(message.createTime, writer.uint32(/* id 7, wireType 2 =*/58).fork()).ldelim();
+                            if (message.satisfiesPzs != null && Object.hasOwnProperty.call(message, "satisfiesPzs"))
+                                writer.uint32(/* id 8, wireType 0 =*/64).bool(message.satisfiesPzs);
                             return writer;
                         };
     
@@ -7352,6 +7377,9 @@
                                 case 7:
                                     message.createTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
                                     break;
+                                case 8:
+                                    message.satisfiesPzs = reader.bool();
+                                    break;
                                 default:
                                     reader.skipType(tag & 7);
                                     break;
@@ -7387,6 +7415,7 @@
                         Instance.verify = function verify(message) {
                             if (typeof message !== "object" || message === null)
                                 return "object expected";
+                            var properties = {};
                             if (message.name != null && message.hasOwnProperty("name"))
                                 if (!$util.isString(message.name))
                                     return "name: string expected";
@@ -7424,6 +7453,11 @@
                                 if (error)
                                     return "createTime." + error;
                             }
+                            if (message.satisfiesPzs != null && message.hasOwnProperty("satisfiesPzs")) {
+                                properties._satisfiesPzs = 1;
+                                if (typeof message.satisfiesPzs !== "boolean")
+                                    return "satisfiesPzs: boolean expected";
+                            }
                             return null;
                         };
     
@@ -7483,6 +7517,8 @@
                                     throw TypeError(".google.bigtable.admin.v2.Instance.createTime: object expected");
                                 message.createTime = $root.google.protobuf.Timestamp.fromObject(object.createTime);
                             }
+                            if (object.satisfiesPzs != null)
+                                message.satisfiesPzs = Boolean(object.satisfiesPzs);
                             return message;
                         };
     
@@ -7524,6 +7560,11 @@
                             }
                             if (message.createTime != null && message.hasOwnProperty("createTime"))
                                 object.createTime = $root.google.protobuf.Timestamp.toObject(message.createTime, options);
+                            if (message.satisfiesPzs != null && message.hasOwnProperty("satisfiesPzs")) {
+                                object.satisfiesPzs = message.satisfiesPzs;
+                                if (options.oneofs)
+                                    object._satisfiesPzs = "satisfiesPzs";
+                            }
                             return object;
                         };
     
@@ -7580,6 +7621,7 @@
                          * @memberof google.bigtable.admin.v2
                          * @interface IAutoscalingTargets
                          * @property {number|null} [cpuUtilizationPercent] AutoscalingTargets cpuUtilizationPercent
+                         * @property {number|null} [storageUtilizationGibPerNode] AutoscalingTargets storageUtilizationGibPerNode
                          */
     
                         /**
@@ -7605,6 +7647,14 @@
                          */
                         AutoscalingTargets.prototype.cpuUtilizationPercent = 0;
     
+                        /**
+                         * AutoscalingTargets storageUtilizationGibPerNode.
+                         * @member {number} storageUtilizationGibPerNode
+                         * @memberof google.bigtable.admin.v2.AutoscalingTargets
+                         * @instance
+                         */
+                        AutoscalingTargets.prototype.storageUtilizationGibPerNode = 0;
+    
                         /**
                          * Creates a new AutoscalingTargets instance using the specified properties.
                          * @function create
@@ -7631,6 +7681,8 @@
                                 writer = $Writer.create();
                             if (message.cpuUtilizationPercent != null && Object.hasOwnProperty.call(message, "cpuUtilizationPercent"))
                                 writer.uint32(/* id 2, wireType 0 =*/16).int32(message.cpuUtilizationPercent);
+                            if (message.storageUtilizationGibPerNode != null && Object.hasOwnProperty.call(message, "storageUtilizationGibPerNode"))
+                                writer.uint32(/* id 3, wireType 0 =*/24).int32(message.storageUtilizationGibPerNode);
                             return writer;
                         };
     
@@ -7668,6 +7720,9 @@
                                 case 2:
                                     message.cpuUtilizationPercent = reader.int32();
                                     break;
+                                case 3:
+                                    message.storageUtilizationGibPerNode = reader.int32();
+                                    break;
                                 default:
                                     reader.skipType(tag & 7);
                                     break;
@@ -7706,6 +7761,9 @@
                             if (message.cpuUtilizationPercent != null && message.hasOwnProperty("cpuUtilizationPercent"))
                                 if (!$util.isInteger(message.cpuUtilizationPercent))
                                     return "cpuUtilizationPercent: integer expected";
+                            if (message.storageUtilizationGibPerNode != null && message.hasOwnProperty("storageUtilizationGibPerNode"))
+                                if (!$util.isInteger(message.storageUtilizationGibPerNode))
+                                    return "storageUtilizationGibPerNode: integer expected";
                             return null;
                         };
     
@@ -7723,6 +7781,8 @@
                             var message = new $root.google.bigtable.admin.v2.AutoscalingTargets();
                             if (object.cpuUtilizationPercent != null)
                                 message.cpuUtilizationPercent = object.cpuUtilizationPercent | 0;
+                            if (object.storageUtilizationGibPerNode != null)
+                                message.storageUtilizationGibPerNode = object.storageUtilizationGibPerNode | 0;
                             return message;
                         };
     
@@ -7739,10 +7799,14 @@
                             if (!options)
                                 options = {};
                             var object = {};
-                            if (options.defaults)
+                            if (options.defaults) {
                                 object.cpuUtilizationPercent = 0;
+                                object.storageUtilizationGibPerNode = 0;
+                            }
                             if (message.cpuUtilizationPercent != null && message.hasOwnProperty("cpuUtilizationPercent"))
                                 object.cpuUtilizationPercent = message.cpuUtilizationPercent;
+                            if (message.storageUtilizationGibPerNode != null && message.hasOwnProperty("storageUtilizationGibPerNode"))
+                                object.storageUtilizationGibPerNode = message.storageUtilizationGibPerNode;
                             return object;
                         };
     
@@ -10332,7 +10396,7 @@
                         };
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#createTable}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|createTable}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef CreateTableCallback
                          * @type {function}
@@ -10365,7 +10429,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#createTableFromSnapshot}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|createTableFromSnapshot}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef CreateTableFromSnapshotCallback
                          * @type {function}
@@ -10398,7 +10462,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#listTables}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|listTables}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef ListTablesCallback
                          * @type {function}
@@ -10431,7 +10495,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#getTable}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|getTable}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef GetTableCallback
                          * @type {function}
@@ -10464,7 +10528,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#deleteTable}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|deleteTable}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef DeleteTableCallback
                          * @type {function}
@@ -10497,7 +10561,40 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#modifyColumnFamilies}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|undeleteTable}.
+                         * @memberof google.bigtable.admin.v2.BigtableTableAdmin
+                         * @typedef UndeleteTableCallback
+                         * @type {function}
+                         * @param {Error|null} error Error, if any
+                         * @param {google.longrunning.Operation} [response] Operation
+                         */
+    
+                        /**
+                         * Calls UndeleteTable.
+                         * @function undeleteTable
+                         * @memberof google.bigtable.admin.v2.BigtableTableAdmin
+                         * @instance
+                         * @param {google.bigtable.admin.v2.IUndeleteTableRequest} request UndeleteTableRequest message or plain object
+                         * @param {google.bigtable.admin.v2.BigtableTableAdmin.UndeleteTableCallback} callback Node-style callback called with the error, if any, and Operation
+                         * @returns {undefined}
+                         * @variation 1
+                         */
+                        Object.defineProperty(BigtableTableAdmin.prototype.undeleteTable = function undeleteTable(request, callback) {
+                            return this.rpcCall(undeleteTable, $root.google.bigtable.admin.v2.UndeleteTableRequest, $root.google.longrunning.Operation, request, callback);
+                        }, "name", { value: "UndeleteTable" });
+    
+                        /**
+                         * Calls UndeleteTable.
+                         * @function undeleteTable
+                         * @memberof google.bigtable.admin.v2.BigtableTableAdmin
+                         * @instance
+                         * @param {google.bigtable.admin.v2.IUndeleteTableRequest} request UndeleteTableRequest message or plain object
+                         * @returns {Promise<google.longrunning.Operation>} Promise
+                         * @variation 2
+                         */
+    
+                        /**
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|modifyColumnFamilies}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef ModifyColumnFamiliesCallback
                          * @type {function}
@@ -10530,7 +10627,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#dropRowRange}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|dropRowRange}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef DropRowRangeCallback
                          * @type {function}
@@ -10563,7 +10660,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#generateConsistencyToken}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|generateConsistencyToken}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef GenerateConsistencyTokenCallback
                          * @type {function}
@@ -10596,7 +10693,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#checkConsistency}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|checkConsistency}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef CheckConsistencyCallback
                          * @type {function}
@@ -10629,7 +10726,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#snapshotTable}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|snapshotTable}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef SnapshotTableCallback
                          * @type {function}
@@ -10662,7 +10759,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#getSnapshot}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|getSnapshot}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef GetSnapshotCallback
                          * @type {function}
@@ -10695,7 +10792,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#listSnapshots}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|listSnapshots}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef ListSnapshotsCallback
                          * @type {function}
@@ -10728,7 +10825,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#deleteSnapshot}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|deleteSnapshot}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef DeleteSnapshotCallback
                          * @type {function}
@@ -10761,7 +10858,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#createBackup}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|createBackup}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef CreateBackupCallback
                          * @type {function}
@@ -10794,7 +10891,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#getBackup}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|getBackup}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef GetBackupCallback
                          * @type {function}
@@ -10827,7 +10924,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#updateBackup}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|updateBackup}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef UpdateBackupCallback
                          * @type {function}
@@ -10860,7 +10957,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#deleteBackup}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|deleteBackup}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef DeleteBackupCallback
                          * @type {function}
@@ -10893,7 +10990,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#listBackups}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|listBackups}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef ListBackupsCallback
                          * @type {function}
@@ -10926,7 +11023,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#restoreTable}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|restoreTable}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef RestoreTableCallback
                          * @type {function}
@@ -10959,7 +11056,40 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#getIamPolicy}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|copyBackup}.
+                         * @memberof google.bigtable.admin.v2.BigtableTableAdmin
+                         * @typedef CopyBackupCallback
+                         * @type {function}
+                         * @param {Error|null} error Error, if any
+                         * @param {google.longrunning.Operation} [response] Operation
+                         */
+    
+                        /**
+                         * Calls CopyBackup.
+                         * @function copyBackup
+                         * @memberof google.bigtable.admin.v2.BigtableTableAdmin
+                         * @instance
+                         * @param {google.bigtable.admin.v2.ICopyBackupRequest} request CopyBackupRequest message or plain object
+                         * @param {google.bigtable.admin.v2.BigtableTableAdmin.CopyBackupCallback} callback Node-style callback called with the error, if any, and Operation
+                         * @returns {undefined}
+                         * @variation 1
+                         */
+                        Object.defineProperty(BigtableTableAdmin.prototype.copyBackup = function copyBackup(request, callback) {
+                            return this.rpcCall(copyBackup, $root.google.bigtable.admin.v2.CopyBackupRequest, $root.google.longrunning.Operation, request, callback);
+                        }, "name", { value: "CopyBackup" });
+    
+                        /**
+                         * Calls CopyBackup.
+                         * @function copyBackup
+                         * @memberof google.bigtable.admin.v2.BigtableTableAdmin
+                         * @instance
+                         * @param {google.bigtable.admin.v2.ICopyBackupRequest} request CopyBackupRequest message or plain object
+                         * @returns {Promise<google.longrunning.Operation>} Promise
+                         * @variation 2
+                         */
+    
+                        /**
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|getIamPolicy}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef GetIamPolicyCallback
                          * @type {function}
@@ -10992,7 +11122,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#setIamPolicy}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|setIamPolicy}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef SetIamPolicyCallback
                          * @type {function}
@@ -11025,7 +11155,7 @@
                          */
     
                         /**
-                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin#testIamPermissions}.
+                         * Callback as used by {@link google.bigtable.admin.v2.BigtableTableAdmin|testIamPermissions}.
                          * @memberof google.bigtable.admin.v2.BigtableTableAdmin
                          * @typedef TestIamPermissionsCallback
                          * @type {function}
@@ -13761,6 +13891,435 @@
                         return DeleteTableRequest;
                     })();
     
+                    v2.UndeleteTableRequest = (function() {
+    
+                        /**
+                         * Properties of an UndeleteTableRequest.
+                         * @memberof google.bigtable.admin.v2
+                         * @interface IUndeleteTableRequest
+                         * @property {string|null} [name] UndeleteTableRequest name
+                         */
+    
+                        /**
+                         * Constructs a new UndeleteTableRequest.
+                         * @memberof google.bigtable.admin.v2
+                         * @classdesc Represents an UndeleteTableRequest.
+                         * @implements IUndeleteTableRequest
+                         * @constructor
+                         * @param {google.bigtable.admin.v2.IUndeleteTableRequest=} [properties] Properties to set
+                         */
+                        function UndeleteTableRequest(properties) {
+                            if (properties)
+                                for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                    if (properties[keys[i]] != null)
+                                        this[keys[i]] = properties[keys[i]];
+                        }
+    
+                        /**
+                         * UndeleteTableRequest name.
+                         * @member {string} name
+                         * @memberof google.bigtable.admin.v2.UndeleteTableRequest
+                         * @instance
+                         */
+                        UndeleteTableRequest.prototype.name = "";
+    
+                        /**
+                         * Creates a new UndeleteTableRequest instance using the specified properties.
+                         * @function create
+                         * @memberof google.bigtable.admin.v2.UndeleteTableRequest
+                         * @static
+                         * @param {google.bigtable.admin.v2.IUndeleteTableRequest=} [properties] Properties to set
+                         * @returns {google.bigtable.admin.v2.UndeleteTableRequest} UndeleteTableRequest instance
+                         */
+                        UndeleteTableRequest.create = function create(properties) {
+                            return new UndeleteTableRequest(properties);
+                        };
+    
+                        /**
+                         * Encodes the specified UndeleteTableRequest message. Does not implicitly {@link google.bigtable.admin.v2.UndeleteTableRequest.verify|verify} messages.
+                         * @function encode
+                         * @memberof google.bigtable.admin.v2.UndeleteTableRequest
+                         * @static
+                         * @param {google.bigtable.admin.v2.IUndeleteTableRequest} message UndeleteTableRequest message or plain object to encode
+                         * @param {$protobuf.Writer} [writer] Writer to encode to
+                         * @returns {$protobuf.Writer} Writer
+                         */
+                        UndeleteTableRequest.encode = function encode(message, writer) {
+                            if (!writer)
+                                writer = $Writer.create();
+                            if (message.name != null && Object.hasOwnProperty.call(message, "name"))
+                                writer.uint32(/* id 1, wireType 2 =*/10).string(message.name);
+                            return writer;
+                        };
+    
+                        /**
+                         * Encodes the specified UndeleteTableRequest message, length delimited. Does not implicitly {@link google.bigtable.admin.v2.UndeleteTableRequest.verify|verify} messages.
+                         * @function encodeDelimited
+                         * @memberof google.bigtable.admin.v2.UndeleteTableRequest
+                         * @static
+                         * @param {google.bigtable.admin.v2.IUndeleteTableRequest} message UndeleteTableRequest message or plain object to encode
+                         * @param {$protobuf.Writer} [writer] Writer to encode to
+                         * @returns {$protobuf.Writer} Writer
+                         */
+                        UndeleteTableRequest.encodeDelimited = function encodeDelimited(message, writer) {
+                            return this.encode(message, writer).ldelim();
+                        };
+    
+                        /**
+                         * Decodes an UndeleteTableRequest message from the specified reader or buffer.
+                         * @function decode
+                         * @memberof google.bigtable.admin.v2.UndeleteTableRequest
+                         * @static
+                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                         * @param {number} [length] Message length if known beforehand
+                         * @returns {google.bigtable.admin.v2.UndeleteTableRequest} UndeleteTableRequest
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        UndeleteTableRequest.decode = function decode(reader, length) {
+                            if (!(reader instanceof $Reader))
+                                reader = $Reader.create(reader);
+                            var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.bigtable.admin.v2.UndeleteTableRequest();
+                            while (reader.pos < end) {
+                                var tag = reader.uint32();
+                                switch (tag >>> 3) {
+                                case 1:
+                                    message.name = reader.string();
+                                    break;
+                                default:
+                                    reader.skipType(tag & 7);
+                                    break;
+                                }
+                            }
+                            return message;
+                        };
+    
+                        /**
+                         * Decodes an UndeleteTableRequest message from the specified reader or buffer, length delimited.
+                         * @function decodeDelimited
+                         * @memberof google.bigtable.admin.v2.UndeleteTableRequest
+                         * @static
+                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                         * @returns {google.bigtable.admin.v2.UndeleteTableRequest} UndeleteTableRequest
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        UndeleteTableRequest.decodeDelimited = function decodeDelimited(reader) {
+                            if (!(reader instanceof $Reader))
+                                reader = new $Reader(reader);
+                            return this.decode(reader, reader.uint32());
+                        };
+    
+                        /**
+                         * Verifies an UndeleteTableRequest message.
+                         * @function verify
+                         * @memberof google.bigtable.admin.v2.UndeleteTableRequest
+                         * @static
+                         * @param {Object.<string,*>} message Plain object to verify
+                         * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                         */
+                        UndeleteTableRequest.verify = function verify(message) {
+                            if (typeof message !== "object" || message === null)
+                                return "object expected";
+                            if (message.name != null && message.hasOwnProperty("name"))
+                                if (!$util.isString(message.name))
+                                    return "name: string expected";
+                            return null;
+                        };
+    
+                        /**
+                         * Creates an UndeleteTableRequest message from a plain object. Also converts values to their respective internal types.
+                         * @function fromObject
+                         * @memberof google.bigtable.admin.v2.UndeleteTableRequest
+                         * @static
+                         * @param {Object.<string,*>} object Plain object
+                         * @returns {google.bigtable.admin.v2.UndeleteTableRequest} UndeleteTableRequest
+                         */
+                        UndeleteTableRequest.fromObject = function fromObject(object) {
+                            if (object instanceof $root.google.bigtable.admin.v2.UndeleteTableRequest)
+                                return object;
+                            var message = new $root.google.bigtable.admin.v2.UndeleteTableRequest();
+                            if (object.name != null)
+                                message.name = String(object.name);
+                            return message;
+                        };
+    
+                        /**
+                         * Creates a plain object from an UndeleteTableRequest message. Also converts values to other types if specified.
+                         * @function toObject
+                         * @memberof google.bigtable.admin.v2.UndeleteTableRequest
+                         * @static
+                         * @param {google.bigtable.admin.v2.UndeleteTableRequest} message UndeleteTableRequest
+                         * @param {$protobuf.IConversionOptions} [options] Conversion options
+                         * @returns {Object.<string,*>} Plain object
+                         */
+                        UndeleteTableRequest.toObject = function toObject(message, options) {
+                            if (!options)
+                                options = {};
+                            var object = {};
+                            if (options.defaults)
+                                object.name = "";
+                            if (message.name != null && message.hasOwnProperty("name"))
+                                object.name = message.name;
+                            return object;
+                        };
+    
+                        /**
+                         * Converts this UndeleteTableRequest to JSON.
+                         * @function toJSON
+                         * @memberof google.bigtable.admin.v2.UndeleteTableRequest
+                         * @instance
+                         * @returns {Object.<string,*>} JSON object
+                         */
+                        UndeleteTableRequest.prototype.toJSON = function toJSON() {
+                            return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                        };
+    
+                        return UndeleteTableRequest;
+                    })();
+    
+                    v2.UndeleteTableMetadata = (function() {
+    
+                        /**
+                         * Properties of an UndeleteTableMetadata.
+                         * @memberof google.bigtable.admin.v2
+                         * @interface IUndeleteTableMetadata
+                         * @property {string|null} [name] UndeleteTableMetadata name
+                         * @property {google.protobuf.ITimestamp|null} [startTime] UndeleteTableMetadata startTime
+                         * @property {google.protobuf.ITimestamp|null} [endTime] UndeleteTableMetadata endTime
+                         */
+    
+                        /**
+                         * Constructs a new UndeleteTableMetadata.
+                         * @memberof google.bigtable.admin.v2
+                         * @classdesc Represents an UndeleteTableMetadata.
+                         * @implements IUndeleteTableMetadata
+                         * @constructor
+                         * @param {google.bigtable.admin.v2.IUndeleteTableMetadata=} [properties] Properties to set
+                         */
+                        function UndeleteTableMetadata(properties) {
+                            if (properties)
+                                for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                    if (properties[keys[i]] != null)
+                                        this[keys[i]] = properties[keys[i]];
+                        }
+    
+                        /**
+                         * UndeleteTableMetadata name.
+                         * @member {string} name
+                         * @memberof google.bigtable.admin.v2.UndeleteTableMetadata
+                         * @instance
+                         */
+                        UndeleteTableMetadata.prototype.name = "";
+    
+                        /**
+                         * UndeleteTableMetadata startTime.
+                         * @member {google.protobuf.ITimestamp|null|undefined} startTime
+                         * @memberof google.bigtable.admin.v2.UndeleteTableMetadata
+                         * @instance
+                         */
+                        UndeleteTableMetadata.prototype.startTime = null;
+    
+                        /**
+                         * UndeleteTableMetadata endTime.
+                         * @member {google.protobuf.ITimestamp|null|undefined} endTime
+                         * @memberof google.bigtable.admin.v2.UndeleteTableMetadata
+                         * @instance
+                         */
+                        UndeleteTableMetadata.prototype.endTime = null;
+    
+                        /**
+                         * Creates a new UndeleteTableMetadata instance using the specified properties.
+                         * @function create
+                         * @memberof google.bigtable.admin.v2.UndeleteTableMetadata
+                         * @static
+                         * @param {google.bigtable.admin.v2.IUndeleteTableMetadata=} [properties] Properties to set
+                         * @returns {google.bigtable.admin.v2.UndeleteTableMetadata} UndeleteTableMetadata instance
+                         */
+                        UndeleteTableMetadata.create = function create(properties) {
+                            return new UndeleteTableMetadata(properties);
+                        };
+    
+                        /**
+                         * Encodes the specified UndeleteTableMetadata message. Does not implicitly {@link google.bigtable.admin.v2.UndeleteTableMetadata.verify|verify} messages.
+                         * @function encode
+                         * @memberof google.bigtable.admin.v2.UndeleteTableMetadata
+                         * @static
+                         * @param {google.bigtable.admin.v2.IUndeleteTableMetadata} message UndeleteTableMetadata message or plain object to encode
+                         * @param {$protobuf.Writer} [writer] Writer to encode to
+                         * @returns {$protobuf.Writer} Writer
+                         */
+                        UndeleteTableMetadata.encode = function encode(message, writer) {
+                            if (!writer)
+                                writer = $Writer.create();
+                            if (message.name != null && Object.hasOwnProperty.call(message, "name"))
+                                writer.uint32(/* id 1, wireType 2 =*/10).string(message.name);
+                            if (message.startTime != null && Object.hasOwnProperty.call(message, "startTime"))
+                                $root.google.protobuf.Timestamp.encode(message.startTime, writer.uint32(/* id 2, wireType 2 =*/18).fork()).ldelim();
+                            if (message.endTime != null && Object.hasOwnProperty.call(message, "endTime"))
+                                $root.google.protobuf.Timestamp.encode(message.endTime, writer.uint32(/* id 3, wireType 2 =*/26).fork()).ldelim();
+                            return writer;
+                        };
+    
+                        /**
+                         * Encodes the specified UndeleteTableMetadata message, length delimited. Does not implicitly {@link google.bigtable.admin.v2.UndeleteTableMetadata.verify|verify} messages.
+                         * @function encodeDelimited
+                         * @memberof google.bigtable.admin.v2.UndeleteTableMetadata
+                         * @static
+                         * @param {google.bigtable.admin.v2.IUndeleteTableMetadata} message UndeleteTableMetadata message or plain object to encode
+                         * @param {$protobuf.Writer} [writer] Writer to encode to
+                         * @returns {$protobuf.Writer} Writer
+                         */
+                        UndeleteTableMetadata.encodeDelimited = function encodeDelimited(message, writer) {
+                            return this.encode(message, writer).ldelim();
+                        };
+    
+                        /**
+                         * Decodes an UndeleteTableMetadata message from the specified reader or buffer.
+                         * @function decode
+                         * @memberof google.bigtable.admin.v2.UndeleteTableMetadata
+                         * @static
+                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                         * @param {number} [length] Message length if known beforehand
+                         * @returns {google.bigtable.admin.v2.UndeleteTableMetadata} UndeleteTableMetadata
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        UndeleteTableMetadata.decode = function decode(reader, length) {
+                            if (!(reader instanceof $Reader))
+                                reader = $Reader.create(reader);
+                            var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.bigtable.admin.v2.UndeleteTableMetadata();
+                            while (reader.pos < end) {
+                                var tag = reader.uint32();
+                                switch (tag >>> 3) {
+                                case 1:
+                                    message.name = reader.string();
+                                    break;
+                                case 2:
+                                    message.startTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                    break;
+                                case 3:
+                                    message.endTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                    break;
+                                default:
+                                    reader.skipType(tag & 7);
+                                    break;
+                                }
+                            }
+                            return message;
+                        };
+    
+                        /**
+                         * Decodes an UndeleteTableMetadata message from the specified reader or buffer, length delimited.
+                         * @function decodeDelimited
+                         * @memberof google.bigtable.admin.v2.UndeleteTableMetadata
+                         * @static
+                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                         * @returns {google.bigtable.admin.v2.UndeleteTableMetadata} UndeleteTableMetadata
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        UndeleteTableMetadata.decodeDelimited = function decodeDelimited(reader) {
+                            if (!(reader instanceof $Reader))
+                                reader = new $Reader(reader);
+                            return this.decode(reader, reader.uint32());
+                        };
+    
+                        /**
+                         * Verifies an UndeleteTableMetadata message.
+                         * @function verify
+                         * @memberof google.bigtable.admin.v2.UndeleteTableMetadata
+                         * @static
+                         * @param {Object.<string,*>} message Plain object to verify
+                         * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                         */
+                        UndeleteTableMetadata.verify = function verify(message) {
+                            if (typeof message !== "object" || message === null)
+                                return "object expected";
+                            if (message.name != null && message.hasOwnProperty("name"))
+                                if (!$util.isString(message.name))
+                                    return "name: string expected";
+                            if (message.startTime != null && message.hasOwnProperty("startTime")) {
+                                var error = $root.google.protobuf.Timestamp.verify(message.startTime);
+                                if (error)
+                                    return "startTime." + error;
+                            }
+                            if (message.endTime != null && message.hasOwnProperty("endTime")) {
+                                var error = $root.google.protobuf.Timestamp.verify(message.endTime);
+                                if (error)
+                                    return "endTime." + error;
+                            }
+                            return null;
+                        };
+    
+                        /**
+                         * Creates an UndeleteTableMetadata message from a plain object. Also converts values to their respective internal types.
+                         * @function fromObject
+                         * @memberof google.bigtable.admin.v2.UndeleteTableMetadata
+                         * @static
+                         * @param {Object.<string,*>} object Plain object
+                         * @returns {google.bigtable.admin.v2.UndeleteTableMetadata} UndeleteTableMetadata
+                         */
+                        UndeleteTableMetadata.fromObject = function fromObject(object) {
+                            if (object instanceof $root.google.bigtable.admin.v2.UndeleteTableMetadata)
+                                return object;
+                            var message = new $root.google.bigtable.admin.v2.UndeleteTableMetadata();
+                            if (object.name != null)
+                                message.name = String(object.name);
+                            if (object.startTime != null) {
+                                if (typeof object.startTime !== "object")
+                                    throw TypeError(".google.bigtable.admin.v2.UndeleteTableMetadata.startTime: object expected");
+                                message.startTime = $root.google.protobuf.Timestamp.fromObject(object.startTime);
+                            }
+                            if (object.endTime != null) {
+                                if (typeof object.endTime !== "object")
+                                    throw TypeError(".google.bigtable.admin.v2.UndeleteTableMetadata.endTime: object expected");
+                                message.endTime = $root.google.protobuf.Timestamp.fromObject(object.endTime);
+                            }
+                            return message;
+                        };
+    
+                        /**
+                         * Creates a plain object from an UndeleteTableMetadata message. Also converts values to other types if specified.
+                         * @function toObject
+                         * @memberof google.bigtable.admin.v2.UndeleteTableMetadata
+                         * @static
+                         * @param {google.bigtable.admin.v2.UndeleteTableMetadata} message UndeleteTableMetadata
+                         * @param {$protobuf.IConversionOptions} [options] Conversion options
+                         * @returns {Object.<string,*>} Plain object
+                         */
+                        UndeleteTableMetadata.toObject = function toObject(message, options) {
+                            if (!options)
+                                options = {};
+                            var object = {};
+                            if (options.defaults) {
+                                object.name = "";
+                                object.startTime = null;
+                                object.endTime = null;
+                            }
+                            if (message.name != null && message.hasOwnProperty("name"))
+                                object.name = message.name;
+                            if (message.startTime != null && message.hasOwnProperty("startTime"))
+                                object.startTime = $root.google.protobuf.Timestamp.toObject(message.startTime, options);
+                            if (message.endTime != null && message.hasOwnProperty("endTime"))
+                                object.endTime = $root.google.protobuf.Timestamp.toObject(message.endTime, options);
+                            return object;
+                        };
+    
+                        /**
+                         * Converts this UndeleteTableMetadata to JSON.
+                         * @function toJSON
+                         * @memberof google.bigtable.admin.v2.UndeleteTableMetadata
+                         * @instance
+                         * @returns {Object.<string,*>} JSON object
+                         */
+                        UndeleteTableMetadata.prototype.toJSON = function toJSON() {
+                            return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                        };
+    
+                        return UndeleteTableMetadata;
+                    })();
+    
                     v2.ModifyColumnFamiliesRequest = (function() {
     
                         /**
@@ -18273,6 +18832,502 @@
                         return ListBackupsResponse;
                     })();
     
+                    v2.CopyBackupRequest = (function() {
+    
+                        /**
+                         * Properties of a CopyBackupRequest.
+                         * @memberof google.bigtable.admin.v2
+                         * @interface ICopyBackupRequest
+                         * @property {string|null} [parent] CopyBackupRequest parent
+                         * @property {string|null} [backupId] CopyBackupRequest backupId
+                         * @property {string|null} [sourceBackup] CopyBackupRequest sourceBackup
+                         * @property {google.protobuf.ITimestamp|null} [expireTime] CopyBackupRequest expireTime
+                         */
+    
+                        /**
+                         * Constructs a new CopyBackupRequest.
+                         * @memberof google.bigtable.admin.v2
+                         * @classdesc Represents a CopyBackupRequest.
+                         * @implements ICopyBackupRequest
+                         * @constructor
+                         * @param {google.bigtable.admin.v2.ICopyBackupRequest=} [properties] Properties to set
+                         */
+                        function CopyBackupRequest(properties) {
+                            if (properties)
+                                for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                    if (properties[keys[i]] != null)
+                                        this[keys[i]] = properties[keys[i]];
+                        }
+    
+                        /**
+                         * CopyBackupRequest parent.
+                         * @member {string} parent
+                         * @memberof google.bigtable.admin.v2.CopyBackupRequest
+                         * @instance
+                         */
+                        CopyBackupRequest.prototype.parent = "";
+    
+                        /**
+                         * CopyBackupRequest backupId.
+                         * @member {string} backupId
+                         * @memberof google.bigtable.admin.v2.CopyBackupRequest
+                         * @instance
+                         */
+                        CopyBackupRequest.prototype.backupId = "";
+    
+                        /**
+                         * CopyBackupRequest sourceBackup.
+                         * @member {string} sourceBackup
+                         * @memberof google.bigtable.admin.v2.CopyBackupRequest
+                         * @instance
+                         */
+                        CopyBackupRequest.prototype.sourceBackup = "";
+    
+                        /**
+                         * CopyBackupRequest expireTime.
+                         * @member {google.protobuf.ITimestamp|null|undefined} expireTime
+                         * @memberof google.bigtable.admin.v2.CopyBackupRequest
+                         * @instance
+                         */
+                        CopyBackupRequest.prototype.expireTime = null;
+    
+                        /**
+                         * Creates a new CopyBackupRequest instance using the specified properties.
+                         * @function create
+                         * @memberof google.bigtable.admin.v2.CopyBackupRequest
+                         * @static
+                         * @param {google.bigtable.admin.v2.ICopyBackupRequest=} [properties] Properties to set
+                         * @returns {google.bigtable.admin.v2.CopyBackupRequest} CopyBackupRequest instance
+                         */
+                        CopyBackupRequest.create = function create(properties) {
+                            return new CopyBackupRequest(properties);
+                        };
+    
+                        /**
+                         * Encodes the specified CopyBackupRequest message. Does not implicitly {@link google.bigtable.admin.v2.CopyBackupRequest.verify|verify} messages.
+                         * @function encode
+                         * @memberof google.bigtable.admin.v2.CopyBackupRequest
+                         * @static
+                         * @param {google.bigtable.admin.v2.ICopyBackupRequest} message CopyBackupRequest message or plain object to encode
+                         * @param {$protobuf.Writer} [writer] Writer to encode to
+                         * @returns {$protobuf.Writer} Writer
+                         */
+                        CopyBackupRequest.encode = function encode(message, writer) {
+                            if (!writer)
+                                writer = $Writer.create();
+                            if (message.parent != null && Object.hasOwnProperty.call(message, "parent"))
+                                writer.uint32(/* id 1, wireType 2 =*/10).string(message.parent);
+                            if (message.backupId != null && Object.hasOwnProperty.call(message, "backupId"))
+                                writer.uint32(/* id 2, wireType 2 =*/18).string(message.backupId);
+                            if (message.sourceBackup != null && Object.hasOwnProperty.call(message, "sourceBackup"))
+                                writer.uint32(/* id 3, wireType 2 =*/26).string(message.sourceBackup);
+                            if (message.expireTime != null && Object.hasOwnProperty.call(message, "expireTime"))
+                                $root.google.protobuf.Timestamp.encode(message.expireTime, writer.uint32(/* id 4, wireType 2 =*/34).fork()).ldelim();
+                            return writer;
+                        };
+    
+                        /**
+                         * Encodes the specified CopyBackupRequest message, length delimited. Does not implicitly {@link google.bigtable.admin.v2.CopyBackupRequest.verify|verify} messages.
+                         * @function encodeDelimited
+                         * @memberof google.bigtable.admin.v2.CopyBackupRequest
+                         * @static
+                         * @param {google.bigtable.admin.v2.ICopyBackupRequest} message CopyBackupRequest message or plain object to encode
+                         * @param {$protobuf.Writer} [writer] Writer to encode to
+                         * @returns {$protobuf.Writer} Writer
+                         */
+                        CopyBackupRequest.encodeDelimited = function encodeDelimited(message, writer) {
+                            return this.encode(message, writer).ldelim();
+                        };
+    
+                        /**
+                         * Decodes a CopyBackupRequest message from the specified reader or buffer.
+                         * @function decode
+                         * @memberof google.bigtable.admin.v2.CopyBackupRequest
+                         * @static
+                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                         * @param {number} [length] Message length if known beforehand
+                         * @returns {google.bigtable.admin.v2.CopyBackupRequest} CopyBackupRequest
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        CopyBackupRequest.decode = function decode(reader, length) {
+                            if (!(reader instanceof $Reader))
+                                reader = $Reader.create(reader);
+                            var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.bigtable.admin.v2.CopyBackupRequest();
+                            while (reader.pos < end) {
+                                var tag = reader.uint32();
+                                switch (tag >>> 3) {
+                                case 1:
+                                    message.parent = reader.string();
+                                    break;
+                                case 2:
+                                    message.backupId = reader.string();
+                                    break;
+                                case 3:
+                                    message.sourceBackup = reader.string();
+                                    break;
+                                case 4:
+                                    message.expireTime = $root.google.protobuf.Timestamp.decode(reader, reader.uint32());
+                                    break;
+                                default:
+                                    reader.skipType(tag & 7);
+                                    break;
+                                }
+                            }
+                            return message;
+                        };
+    
+                        /**
+                         * Decodes a CopyBackupRequest message from the specified reader or buffer, length delimited.
+                         * @function decodeDelimited
+                         * @memberof google.bigtable.admin.v2.CopyBackupRequest
+                         * @static
+                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                         * @returns {google.bigtable.admin.v2.CopyBackupRequest} CopyBackupRequest
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        CopyBackupRequest.decodeDelimited = function decodeDelimited(reader) {
+                            if (!(reader instanceof $Reader))
+                                reader = new $Reader(reader);
+                            return this.decode(reader, reader.uint32());
+                        };
+    
+                        /**
+                         * Verifies a CopyBackupRequest message.
+                         * @function verify
+                         * @memberof google.bigtable.admin.v2.CopyBackupRequest
+                         * @static
+                         * @param {Object.<string,*>} message Plain object to verify
+                         * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                         */
+                        CopyBackupRequest.verify = function verify(message) {
+                            if (typeof message !== "object" || message === null)
+                                return "object expected";
+                            if (message.parent != null && message.hasOwnProperty("parent"))
+                                if (!$util.isString(message.parent))
+                                    return "parent: string expected";
+                            if (message.backupId != null && message.hasOwnProperty("backupId"))
+                                if (!$util.isString(message.backupId))
+                                    return "backupId: string expected";
+                            if (message.sourceBackup != null && message.hasOwnProperty("sourceBackup"))
+                                if (!$util.isString(message.sourceBackup))
+                                    return "sourceBackup: string expected";
+                            if (message.expireTime != null && message.hasOwnProperty("expireTime")) {
+                                var error = $root.google.protobuf.Timestamp.verify(message.expireTime);
+                                if (error)
+                                    return "expireTime." + error;
+                            }
+                            return null;
+                        };
+    
+                        /**
+                         * Creates a CopyBackupRequest message from a plain object. Also converts values to their respective internal types.
+                         * @function fromObject
+                         * @memberof google.bigtable.admin.v2.CopyBackupRequest
+                         * @static
+                         * @param {Object.<string,*>} object Plain object
+                         * @returns {google.bigtable.admin.v2.CopyBackupRequest} CopyBackupRequest
+                         */
+                        CopyBackupRequest.fromObject = function fromObject(object) {
+                            if (object instanceof $root.google.bigtable.admin.v2.CopyBackupRequest)
+                                return object;
+                            var message = new $root.google.bigtable.admin.v2.CopyBackupRequest();
+                            if (object.parent != null)
+                                message.parent = String(object.parent);
+                            if (object.backupId != null)
+                                message.backupId = String(object.backupId);
+                            if (object.sourceBackup != null)
+                                message.sourceBackup = String(object.sourceBackup);
+                            if (object.expireTime != null) {
+                                if (typeof object.expireTime !== "object")
+                                    throw TypeError(".google.bigtable.admin.v2.CopyBackupRequest.expireTime: object expected");
+                                message.expireTime = $root.google.protobuf.Timestamp.fromObject(object.expireTime);
+                            }
+                            return message;
+                        };
+    
+                        /**
+                         * Creates a plain object from a CopyBackupRequest message. Also converts values to other types if specified.
+                         * @function toObject
+                         * @memberof google.bigtable.admin.v2.CopyBackupRequest
+                         * @static
+                         * @param {google.bigtable.admin.v2.CopyBackupRequest} message CopyBackupRequest
+                         * @param {$protobuf.IConversionOptions} [options] Conversion options
+                         * @returns {Object.<string,*>} Plain object
+                         */
+                        CopyBackupRequest.toObject = function toObject(message, options) {
+                            if (!options)
+                                options = {};
+                            var object = {};
+                            if (options.defaults) {
+                                object.parent = "";
+                                object.backupId = "";
+                                object.sourceBackup = "";
+                                object.expireTime = null;
+                            }
+                            if (message.parent != null && message.hasOwnProperty("parent"))
+                                object.parent = message.parent;
+                            if (message.backupId != null && message.hasOwnProperty("backupId"))
+                                object.backupId = message.backupId;
+                            if (message.sourceBackup != null && message.hasOwnProperty("sourceBackup"))
+                                object.sourceBackup = message.sourceBackup;
+                            if (message.expireTime != null && message.hasOwnProperty("expireTime"))
+                                object.expireTime = $root.google.protobuf.Timestamp.toObject(message.expireTime, options);
+                            return object;
+                        };
+    
+                        /**
+                         * Converts this CopyBackupRequest to JSON.
+                         * @function toJSON
+                         * @memberof google.bigtable.admin.v2.CopyBackupRequest
+                         * @instance
+                         * @returns {Object.<string,*>} JSON object
+                         */
+                        CopyBackupRequest.prototype.toJSON = function toJSON() {
+                            return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                        };
+    
+                        return CopyBackupRequest;
+                    })();
+    
+                    v2.CopyBackupMetadata = (function() {
+    
+                        /**
+                         * Properties of a CopyBackupMetadata.
+                         * @memberof google.bigtable.admin.v2
+                         * @interface ICopyBackupMetadata
+                         * @property {string|null} [name] CopyBackupMetadata name
+                         * @property {string|null} [sourceBackup] CopyBackupMetadata sourceBackup
+                         * @property {google.bigtable.admin.v2.IOperationProgress|null} [progress] CopyBackupMetadata progress
+                         */
+    
+                        /**
+                         * Constructs a new CopyBackupMetadata.
+                         * @memberof google.bigtable.admin.v2
+                         * @classdesc Represents a CopyBackupMetadata.
+                         * @implements ICopyBackupMetadata
+                         * @constructor
+                         * @param {google.bigtable.admin.v2.ICopyBackupMetadata=} [properties] Properties to set
+                         */
+                        function CopyBackupMetadata(properties) {
+                            if (properties)
+                                for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                    if (properties[keys[i]] != null)
+                                        this[keys[i]] = properties[keys[i]];
+                        }
+    
+                        /**
+                         * CopyBackupMetadata name.
+                         * @member {string} name
+                         * @memberof google.bigtable.admin.v2.CopyBackupMetadata
+                         * @instance
+                         */
+                        CopyBackupMetadata.prototype.name = "";
+    
+                        /**
+                         * CopyBackupMetadata sourceBackup.
+                         * @member {string} sourceBackup
+                         * @memberof google.bigtable.admin.v2.CopyBackupMetadata
+                         * @instance
+                         */
+                        CopyBackupMetadata.prototype.sourceBackup = "";
+    
+                        /**
+                         * CopyBackupMetadata progress.
+                         * @member {google.bigtable.admin.v2.IOperationProgress|null|undefined} progress
+                         * @memberof google.bigtable.admin.v2.CopyBackupMetadata
+                         * @instance
+                         */
+                        CopyBackupMetadata.prototype.progress = null;
+    
+                        /**
+                         * Creates a new CopyBackupMetadata instance using the specified properties.
+                         * @function create
+                         * @memberof google.bigtable.admin.v2.CopyBackupMetadata
+                         * @static
+                         * @param {google.bigtable.admin.v2.ICopyBackupMetadata=} [properties] Properties to set
+                         * @returns {google.bigtable.admin.v2.CopyBackupMetadata} CopyBackupMetadata instance
+                         */
+                        CopyBackupMetadata.create = function create(properties) {
+                            return new CopyBackupMetadata(properties);
+                        };
+    
+                        /**
+                         * Encodes the specified CopyBackupMetadata message. Does not implicitly {@link google.bigtable.admin.v2.CopyBackupMetadata.verify|verify} messages.
+                         * @function encode
+                         * @memberof google.bigtable.admin.v2.CopyBackupMetadata
+                         * @static
+                         * @param {google.bigtable.admin.v2.ICopyBackupMetadata} message CopyBackupMetadata message or plain object to encode
+                         * @param {$protobuf.Writer} [writer] Writer to encode to
+                         * @returns {$protobuf.Writer} Writer
+                         */
+                        CopyBackupMetadata.encode = function encode(message, writer) {
+                            if (!writer)
+                                writer = $Writer.create();
+                            if (message.name != null && Object.hasOwnProperty.call(message, "name"))
+                                writer.uint32(/* id 1, wireType 2 =*/10).string(message.name);
+                            if (message.sourceBackup != null && Object.hasOwnProperty.call(message, "sourceBackup"))
+                                writer.uint32(/* id 2, wireType 2 =*/18).string(message.sourceBackup);
+                            if (message.progress != null && Object.hasOwnProperty.call(message, "progress"))
+                                $root.google.bigtable.admin.v2.OperationProgress.encode(message.progress, writer.uint32(/* id 3, wireType 2 =*/26).fork()).ldelim();
+                            return writer;
+                        };
+    
+                        /**
+                         * Encodes the specified CopyBackupMetadata message, length delimited. Does not implicitly {@link google.bigtable.admin.v2.CopyBackupMetadata.verify|verify} messages.
+                         * @function encodeDelimited
+                         * @memberof google.bigtable.admin.v2.CopyBackupMetadata
+                         * @static
+                         * @param {google.bigtable.admin.v2.ICopyBackupMetadata} message CopyBackupMetadata message or plain object to encode
+                         * @param {$protobuf.Writer} [writer] Writer to encode to
+                         * @returns {$protobuf.Writer} Writer
+                         */
+                        CopyBackupMetadata.encodeDelimited = function encodeDelimited(message, writer) {
+                            return this.encode(message, writer).ldelim();
+                        };
+    
+                        /**
+                         * Decodes a CopyBackupMetadata message from the specified reader or buffer.
+                         * @function decode
+                         * @memberof google.bigtable.admin.v2.CopyBackupMetadata
+                         * @static
+                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                         * @param {number} [length] Message length if known beforehand
+                         * @returns {google.bigtable.admin.v2.CopyBackupMetadata} CopyBackupMetadata
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        CopyBackupMetadata.decode = function decode(reader, length) {
+                            if (!(reader instanceof $Reader))
+                                reader = $Reader.create(reader);
+                            var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.bigtable.admin.v2.CopyBackupMetadata();
+                            while (reader.pos < end) {
+                                var tag = reader.uint32();
+                                switch (tag >>> 3) {
+                                case 1:
+                                    message.name = reader.string();
+                                    break;
+                                case 2:
+                                    message.sourceBackup = reader.string();
+                                    break;
+                                case 3:
+                                    message.progress = $root.google.bigtable.admin.v2.OperationProgress.decode(reader, reader.uint32());
+                                    break;
+                                default:
+                                    reader.skipType(tag & 7);
+                                    break;
+                                }
+                            }
+                            return message;
+                        };
+    
+                        /**
+                         * Decodes a CopyBackupMetadata message from the specified reader or buffer, length delimited.
+                         * @function decodeDelimited
+                         * @memberof google.bigtable.admin.v2.CopyBackupMetadata
+                         * @static
+                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                         * @returns {google.bigtable.admin.v2.CopyBackupMetadata} CopyBackupMetadata
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        CopyBackupMetadata.decodeDelimited = function decodeDelimited(reader) {
+                            if (!(reader instanceof $Reader))
+                                reader = new $Reader(reader);
+                            return this.decode(reader, reader.uint32());
+                        };
+    
+                        /**
+                         * Verifies a CopyBackupMetadata message.
+                         * @function verify
+                         * @memberof google.bigtable.admin.v2.CopyBackupMetadata
+                         * @static
+                         * @param {Object.<string,*>} message Plain object to verify
+                         * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                         */
+                        CopyBackupMetadata.verify = function verify(message) {
+                            if (typeof message !== "object" || message === null)
+                                return "object expected";
+                            if (message.name != null && message.hasOwnProperty("name"))
+                                if (!$util.isString(message.name))
+                                    return "name: string expected";
+                            if (message.sourceBackup != null && message.hasOwnProperty("sourceBackup"))
+                                if (!$util.isString(message.sourceBackup))
+                                    return "sourceBackup: string expected";
+                            if (message.progress != null && message.hasOwnProperty("progress")) {
+                                var error = $root.google.bigtable.admin.v2.OperationProgress.verify(message.progress);
+                                if (error)
+                                    return "progress." + error;
+                            }
+                            return null;
+                        };
+    
+                        /**
+                         * Creates a CopyBackupMetadata message from a plain object. Also converts values to their respective internal types.
+                         * @function fromObject
+                         * @memberof google.bigtable.admin.v2.CopyBackupMetadata
+                         * @static
+                         * @param {Object.<string,*>} object Plain object
+                         * @returns {google.bigtable.admin.v2.CopyBackupMetadata} CopyBackupMetadata
+                         */
+                        CopyBackupMetadata.fromObject = function fromObject(object) {
+                            if (object instanceof $root.google.bigtable.admin.v2.CopyBackupMetadata)
+                                return object;
+                            var message = new $root.google.bigtable.admin.v2.CopyBackupMetadata();
+                            if (object.name != null)
+                                message.name = String(object.name);
+                            if (object.sourceBackup != null)
+                                message.sourceBackup = String(object.sourceBackup);
+                            if (object.progress != null) {
+                                if (typeof object.progress !== "object")
+                                    throw TypeError(".google.bigtable.admin.v2.CopyBackupMetadata.progress: object expected");
+                                message.progress = $root.google.bigtable.admin.v2.OperationProgress.fromObject(object.progress);
+                            }
+                            return message;
+                        };
+    
+                        /**
+                         * Creates a plain object from a CopyBackupMetadata message. Also converts values to other types if specified.
+                         * @function toObject
+                         * @memberof google.bigtable.admin.v2.CopyBackupMetadata
+                         * @static
+                         * @param {google.bigtable.admin.v2.CopyBackupMetadata} message CopyBackupMetadata
+                         * @param {$protobuf.IConversionOptions} [options] Conversion options
+                         * @returns {Object.<string,*>} Plain object
+                         */
+                        CopyBackupMetadata.toObject = function toObject(message, options) {
+                            if (!options)
+                                options = {};
+                            var object = {};
+                            if (options.defaults) {
+                                object.name = "";
+                                object.sourceBackup = "";
+                                object.progress = null;
+                            }
+                            if (message.name != null && message.hasOwnProperty("name"))
+                                object.name = message.name;
+                            if (message.sourceBackup != null && message.hasOwnProperty("sourceBackup"))
+                                object.sourceBackup = message.sourceBackup;
+                            if (message.progress != null && message.hasOwnProperty("progress"))
+                                object.progress = $root.google.bigtable.admin.v2.OperationProgress.toObject(message.progress, options);
+                            return object;
+                        };
+    
+                        /**
+                         * Converts this CopyBackupMetadata to JSON.
+                         * @function toJSON
+                         * @memberof google.bigtable.admin.v2.CopyBackupMetadata
+                         * @instance
+                         * @returns {Object.<string,*>} JSON object
+                         */
+                        CopyBackupMetadata.prototype.toJSON = function toJSON() {
+                            return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                        };
+    
+                        return CopyBackupMetadata;
+                    })();
+    
                     v2.RestoreInfo = (function() {
     
                         /**
@@ -21526,7 +22581,7 @@
                     };
     
                     /**
-                     * Callback as used by {@link google.bigtable.v2.Bigtable#readRows}.
+                     * Callback as used by {@link google.bigtable.v2.Bigtable|readRows}.
                      * @memberof google.bigtable.v2.Bigtable
                      * @typedef ReadRowsCallback
                      * @type {function}
@@ -21559,7 +22614,7 @@
                      */
     
                     /**
-                     * Callback as used by {@link google.bigtable.v2.Bigtable#sampleRowKeys}.
+                     * Callback as used by {@link google.bigtable.v2.Bigtable|sampleRowKeys}.
                      * @memberof google.bigtable.v2.Bigtable
                      * @typedef SampleRowKeysCallback
                      * @type {function}
@@ -21592,7 +22647,7 @@
                      */
     
                     /**
-                     * Callback as used by {@link google.bigtable.v2.Bigtable#mutateRow}.
+                     * Callback as used by {@link google.bigtable.v2.Bigtable|mutateRow}.
                      * @memberof google.bigtable.v2.Bigtable
                      * @typedef MutateRowCallback
                      * @type {function}
@@ -21625,7 +22680,7 @@
                      */
     
                     /**
-                     * Callback as used by {@link google.bigtable.v2.Bigtable#mutateRows}.
+                     * Callback as used by {@link google.bigtable.v2.Bigtable|mutateRows}.
                      * @memberof google.bigtable.v2.Bigtable
                      * @typedef MutateRowsCallback
                      * @type {function}
@@ -21658,7 +22713,7 @@
                      */
     
                     /**
-                     * Callback as used by {@link google.bigtable.v2.Bigtable#checkAndMutateRow}.
+                     * Callback as used by {@link google.bigtable.v2.Bigtable|checkAndMutateRow}.
                      * @memberof google.bigtable.v2.Bigtable
                      * @typedef CheckAndMutateRowCallback
                      * @type {function}
@@ -21691,7 +22746,7 @@
                      */
     
                     /**
-                     * Callback as used by {@link google.bigtable.v2.Bigtable#pingAndWarm}.
+                     * Callback as used by {@link google.bigtable.v2.Bigtable|pingAndWarm}.
                      * @memberof google.bigtable.v2.Bigtable
                      * @typedef PingAndWarmCallback
                      * @type {function}
@@ -21724,7 +22779,7 @@
                      */
     
                     /**
-                     * Callback as used by {@link google.bigtable.v2.Bigtable#readModifyWriteRow}.
+                     * Callback as used by {@link google.bigtable.v2.Bigtable|readModifyWriteRow}.
                      * @memberof google.bigtable.v2.Bigtable
                      * @typedef ReadModifyWriteRowCallback
                      * @type {function}
@@ -38517,6 +39572,7 @@
                  * @property {boolean|null} [packed] FieldOptions packed
                  * @property {google.protobuf.FieldOptions.JSType|null} [jstype] FieldOptions jstype
                  * @property {boolean|null} [lazy] FieldOptions lazy
+                 * @property {boolean|null} [unverifiedLazy] FieldOptions unverifiedLazy
                  * @property {boolean|null} [deprecated] FieldOptions deprecated
                  * @property {boolean|null} [weak] FieldOptions weak
                  * @property {Array.<google.protobuf.IUninterpretedOption>|null} [uninterpretedOption] FieldOptions uninterpretedOption
@@ -38573,6 +39629,14 @@
                  */
                 FieldOptions.prototype.lazy = false;
     
+                /**
+                 * FieldOptions unverifiedLazy.
+                 * @member {boolean} unverifiedLazy
+                 * @memberof google.protobuf.FieldOptions
+                 * @instance
+                 */
+                FieldOptions.prototype.unverifiedLazy = false;
+    
                 /**
                  * FieldOptions deprecated.
                  * @member {boolean} deprecated
@@ -38649,6 +39713,8 @@
                         writer.uint32(/* id 6, wireType 0 =*/48).int32(message.jstype);
                     if (message.weak != null && Object.hasOwnProperty.call(message, "weak"))
                         writer.uint32(/* id 10, wireType 0 =*/80).bool(message.weak);
+                    if (message.unverifiedLazy != null && Object.hasOwnProperty.call(message, "unverifiedLazy"))
+                        writer.uint32(/* id 15, wireType 0 =*/120).bool(message.unverifiedLazy);
                     if (message.uninterpretedOption != null && message.uninterpretedOption.length)
                         for (var i = 0; i < message.uninterpretedOption.length; ++i)
                             $root.google.protobuf.UninterpretedOption.encode(message.uninterpretedOption[i], writer.uint32(/* id 999, wireType 2 =*/7994).fork()).ldelim();
@@ -38706,6 +39772,9 @@
                         case 5:
                             message.lazy = reader.bool();
                             break;
+                        case 15:
+                            message.unverifiedLazy = reader.bool();
+                            break;
                         case 3:
                             message.deprecated = reader.bool();
                             break;
@@ -38789,6 +39858,9 @@
                     if (message.lazy != null && message.hasOwnProperty("lazy"))
                         if (typeof message.lazy !== "boolean")
                             return "lazy: boolean expected";
+                    if (message.unverifiedLazy != null && message.hasOwnProperty("unverifiedLazy"))
+                        if (typeof message.unverifiedLazy !== "boolean")
+                            return "unverifiedLazy: boolean expected";
                     if (message.deprecated != null && message.hasOwnProperty("deprecated"))
                         if (typeof message.deprecated !== "boolean")
                             return "deprecated: boolean expected";
@@ -38874,6 +39946,8 @@
                     }
                     if (object.lazy != null)
                         message.lazy = Boolean(object.lazy);
+                    if (object.unverifiedLazy != null)
+                        message.unverifiedLazy = Boolean(object.unverifiedLazy);
                     if (object.deprecated != null)
                         message.deprecated = Boolean(object.deprecated);
                     if (object.weak != null)
@@ -38961,6 +40035,7 @@
                         object.lazy = false;
                         object.jstype = options.enums === String ? "JS_NORMAL" : 0;
                         object.weak = false;
+                        object.unverifiedLazy = false;
                         object[".google.api.resourceReference"] = null;
                     }
                     if (message.ctype != null && message.hasOwnProperty("ctype"))
@@ -38975,6 +40050,8 @@
                         object.jstype = options.enums === String ? $root.google.protobuf.FieldOptions.JSType[message.jstype] : message.jstype;
                     if (message.weak != null && message.hasOwnProperty("weak"))
                         object.weak = message.weak;
+                    if (message.unverifiedLazy != null && message.hasOwnProperty("unverifiedLazy"))
+                        object.unverifiedLazy = message.unverifiedLazy;
                     if (message.uninterpretedOption && message.uninterpretedOption.length) {
                         object.uninterpretedOption = [];
                         for (var j = 0; j < message.uninterpretedOption.length; ++j)
@@ -42263,6 +43340,209 @@
                 return Timestamp;
             })();
     
+            protobuf.FieldMask = (function() {
+    
+                /**
+                 * Properties of a FieldMask.
+                 * @memberof google.protobuf
+                 * @interface IFieldMask
+                 * @property {Array.<string>|null} [paths] FieldMask paths
+                 */
+    
+                /**
+                 * Constructs a new FieldMask.
+                 * @memberof google.protobuf
+                 * @classdesc Represents a FieldMask.
+                 * @implements IFieldMask
+                 * @constructor
+                 * @param {google.protobuf.IFieldMask=} [properties] Properties to set
+                 */
+                function FieldMask(properties) {
+                    this.paths = [];
+                    if (properties)
+                        for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                            if (properties[keys[i]] != null)
+                                this[keys[i]] = properties[keys[i]];
+                }
+    
+                /**
+                 * FieldMask paths.
+                 * @member {Array.<string>} paths
+                 * @memberof google.protobuf.FieldMask
+                 * @instance
+                 */
+                FieldMask.prototype.paths = $util.emptyArray;
+    
+                /**
+                 * Creates a new FieldMask instance using the specified properties.
+                 * @function create
+                 * @memberof google.protobuf.FieldMask
+                 * @static
+                 * @param {google.protobuf.IFieldMask=} [properties] Properties to set
+                 * @returns {google.protobuf.FieldMask} FieldMask instance
+                 */
+                FieldMask.create = function create(properties) {
+                    return new FieldMask(properties);
+                };
+    
+                /**
+                 * Encodes the specified FieldMask message. Does not implicitly {@link google.protobuf.FieldMask.verify|verify} messages.
+                 * @function encode
+                 * @memberof google.protobuf.FieldMask
+                 * @static
+                 * @param {google.protobuf.IFieldMask} message FieldMask message or plain object to encode
+                 * @param {$protobuf.Writer} [writer] Writer to encode to
+                 * @returns {$protobuf.Writer} Writer
+                 */
+                FieldMask.encode = function encode(message, writer) {
+                    if (!writer)
+                        writer = $Writer.create();
+                    if (message.paths != null && message.paths.length)
+                        for (var i = 0; i < message.paths.length; ++i)
+                            writer.uint32(/* id 1, wireType 2 =*/10).string(message.paths[i]);
+                    return writer;
+                };
+    
+                /**
+                 * Encodes the specified FieldMask message, length delimited. Does not implicitly {@link google.protobuf.FieldMask.verify|verify} messages.
+                 * @function encodeDelimited
+                 * @memberof google.protobuf.FieldMask
+                 * @static
+                 * @param {google.protobuf.IFieldMask} message FieldMask message or plain object to encode
+                 * @param {$protobuf.Writer} [writer] Writer to encode to
+                 * @returns {$protobuf.Writer} Writer
+                 */
+                FieldMask.encodeDelimited = function encodeDelimited(message, writer) {
+                    return this.encode(message, writer).ldelim();
+                };
+    
+                /**
+                 * Decodes a FieldMask message from the specified reader or buffer.
+                 * @function decode
+                 * @memberof google.protobuf.FieldMask
+                 * @static
+                 * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                 * @param {number} [length] Message length if known beforehand
+                 * @returns {google.protobuf.FieldMask} FieldMask
+                 * @throws {Error} If the payload is not a reader or valid buffer
+                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                 */
+                FieldMask.decode = function decode(reader, length) {
+                    if (!(reader instanceof $Reader))
+                        reader = $Reader.create(reader);
+                    var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.FieldMask();
+                    while (reader.pos < end) {
+                        var tag = reader.uint32();
+                        switch (tag >>> 3) {
+                        case 1:
+                            if (!(message.paths && message.paths.length))
+                                message.paths = [];
+                            message.paths.push(reader.string());
+                            break;
+                        default:
+                            reader.skipType(tag & 7);
+                            break;
+                        }
+                    }
+                    return message;
+                };
+    
+                /**
+                 * Decodes a FieldMask message from the specified reader or buffer, length delimited.
+                 * @function decodeDelimited
+                 * @memberof google.protobuf.FieldMask
+                 * @static
+                 * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                 * @returns {google.protobuf.FieldMask} FieldMask
+                 * @throws {Error} If the payload is not a reader or valid buffer
+                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                 */
+                FieldMask.decodeDelimited = function decodeDelimited(reader) {
+                    if (!(reader instanceof $Reader))
+                        reader = new $Reader(reader);
+                    return this.decode(reader, reader.uint32());
+                };
+    
+                /**
+                 * Verifies a FieldMask message.
+                 * @function verify
+                 * @memberof google.protobuf.FieldMask
+                 * @static
+                 * @param {Object.<string,*>} message Plain object to verify
+                 * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                 */
+                FieldMask.verify = function verify(message) {
+                    if (typeof message !== "object" || message === null)
+                        return "object expected";
+                    if (message.paths != null && message.hasOwnProperty("paths")) {
+                        if (!Array.isArray(message.paths))
+                            return "paths: array expected";
+                        for (var i = 0; i < message.paths.length; ++i)
+                            if (!$util.isString(message.paths[i]))
+                                return "paths: string[] expected";
+                    }
+                    return null;
+                };
+    
+                /**
+                 * Creates a FieldMask message from a plain object. Also converts values to their respective internal types.
+                 * @function fromObject
+                 * @memberof google.protobuf.FieldMask
+                 * @static
+                 * @param {Object.<string,*>} object Plain object
+                 * @returns {google.protobuf.FieldMask} FieldMask
+                 */
+                FieldMask.fromObject = function fromObject(object) {
+                    if (object instanceof $root.google.protobuf.FieldMask)
+                        return object;
+                    var message = new $root.google.protobuf.FieldMask();
+                    if (object.paths) {
+                        if (!Array.isArray(object.paths))
+                            throw TypeError(".google.protobuf.FieldMask.paths: array expected");
+                        message.paths = [];
+                        for (var i = 0; i < object.paths.length; ++i)
+                            message.paths[i] = String(object.paths[i]);
+                    }
+                    return message;
+                };
+    
+                /**
+                 * Creates a plain object from a FieldMask message. Also converts values to other types if specified.
+                 * @function toObject
+                 * @memberof google.protobuf.FieldMask
+                 * @static
+                 * @param {google.protobuf.FieldMask} message FieldMask
+                 * @param {$protobuf.IConversionOptions} [options] Conversion options
+                 * @returns {Object.<string,*>} Plain object
+                 */
+                FieldMask.toObject = function toObject(message, options) {
+                    if (!options)
+                        options = {};
+                    var object = {};
+                    if (options.arrays || options.defaults)
+                        object.paths = [];
+                    if (message.paths && message.paths.length) {
+                        object.paths = [];
+                        for (var j = 0; j < message.paths.length; ++j)
+                            object.paths[j] = message.paths[j];
+                    }
+                    return object;
+                };
+    
+                /**
+                 * Converts this FieldMask to JSON.
+                 * @function toJSON
+                 * @memberof google.protobuf.FieldMask
+                 * @instance
+                 * @returns {Object.<string,*>} JSON object
+                 */
+                FieldMask.prototype.toJSON = function toJSON() {
+                    return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                };
+    
+                return FieldMask;
+            })();
+    
             protobuf.Any = (function() {
     
                 /**
@@ -42866,209 +44146,6 @@
                 return Empty;
             })();
     
-            protobuf.FieldMask = (function() {
-    
-                /**
-                 * Properties of a FieldMask.
-                 * @memberof google.protobuf
-                 * @interface IFieldMask
-                 * @property {Array.<string>|null} [paths] FieldMask paths
-                 */
-    
-                /**
-                 * Constructs a new FieldMask.
-                 * @memberof google.protobuf
-                 * @classdesc Represents a FieldMask.
-                 * @implements IFieldMask
-                 * @constructor
-                 * @param {google.protobuf.IFieldMask=} [properties] Properties to set
-                 */
-                function FieldMask(properties) {
-                    this.paths = [];
-                    if (properties)
-                        for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
-                            if (properties[keys[i]] != null)
-                                this[keys[i]] = properties[keys[i]];
-                }
-    
-                /**
-                 * FieldMask paths.
-                 * @member {Array.<string>} paths
-                 * @memberof google.protobuf.FieldMask
-                 * @instance
-                 */
-                FieldMask.prototype.paths = $util.emptyArray;
-    
-                /**
-                 * Creates a new FieldMask instance using the specified properties.
-                 * @function create
-                 * @memberof google.protobuf.FieldMask
-                 * @static
-                 * @param {google.protobuf.IFieldMask=} [properties] Properties to set
-                 * @returns {google.protobuf.FieldMask} FieldMask instance
-                 */
-                FieldMask.create = function create(properties) {
-                    return new FieldMask(properties);
-                };
-    
-                /**
-                 * Encodes the specified FieldMask message. Does not implicitly {@link google.protobuf.FieldMask.verify|verify} messages.
-                 * @function encode
-                 * @memberof google.protobuf.FieldMask
-                 * @static
-                 * @param {google.protobuf.IFieldMask} message FieldMask message or plain object to encode
-                 * @param {$protobuf.Writer} [writer] Writer to encode to
-                 * @returns {$protobuf.Writer} Writer
-                 */
-                FieldMask.encode = function encode(message, writer) {
-                    if (!writer)
-                        writer = $Writer.create();
-                    if (message.paths != null && message.paths.length)
-                        for (var i = 0; i < message.paths.length; ++i)
-                            writer.uint32(/* id 1, wireType 2 =*/10).string(message.paths[i]);
-                    return writer;
-                };
-    
-                /**
-                 * Encodes the specified FieldMask message, length delimited. Does not implicitly {@link google.protobuf.FieldMask.verify|verify} messages.
-                 * @function encodeDelimited
-                 * @memberof google.protobuf.FieldMask
-                 * @static
-                 * @param {google.protobuf.IFieldMask} message FieldMask message or plain object to encode
-                 * @param {$protobuf.Writer} [writer] Writer to encode to
-                 * @returns {$protobuf.Writer} Writer
-                 */
-                FieldMask.encodeDelimited = function encodeDelimited(message, writer) {
-                    return this.encode(message, writer).ldelim();
-                };
-    
-                /**
-                 * Decodes a FieldMask message from the specified reader or buffer.
-                 * @function decode
-                 * @memberof google.protobuf.FieldMask
-                 * @static
-                 * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
-                 * @param {number} [length] Message length if known beforehand
-                 * @returns {google.protobuf.FieldMask} FieldMask
-                 * @throws {Error} If the payload is not a reader or valid buffer
-                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
-                 */
-                FieldMask.decode = function decode(reader, length) {
-                    if (!(reader instanceof $Reader))
-                        reader = $Reader.create(reader);
-                    var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.protobuf.FieldMask();
-                    while (reader.pos < end) {
-                        var tag = reader.uint32();
-                        switch (tag >>> 3) {
-                        case 1:
-                            if (!(message.paths && message.paths.length))
-                                message.paths = [];
-                            message.paths.push(reader.string());
-                            break;
-                        default:
-                            reader.skipType(tag & 7);
-                            break;
-                        }
-                    }
-                    return message;
-                };
-    
-                /**
-                 * Decodes a FieldMask message from the specified reader or buffer, length delimited.
-                 * @function decodeDelimited
-                 * @memberof google.protobuf.FieldMask
-                 * @static
-                 * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
-                 * @returns {google.protobuf.FieldMask} FieldMask
-                 * @throws {Error} If the payload is not a reader or valid buffer
-                 * @throws {$protobuf.util.ProtocolError} If required fields are missing
-                 */
-                FieldMask.decodeDelimited = function decodeDelimited(reader) {
-                    if (!(reader instanceof $Reader))
-                        reader = new $Reader(reader);
-                    return this.decode(reader, reader.uint32());
-                };
-    
-                /**
-                 * Verifies a FieldMask message.
-                 * @function verify
-                 * @memberof google.protobuf.FieldMask
-                 * @static
-                 * @param {Object.<string,*>} message Plain object to verify
-                 * @returns {string|null} `null` if valid, otherwise the reason why it is not
-                 */
-                FieldMask.verify = function verify(message) {
-                    if (typeof message !== "object" || message === null)
-                        return "object expected";
-                    if (message.paths != null && message.hasOwnProperty("paths")) {
-                        if (!Array.isArray(message.paths))
-                            return "paths: array expected";
-                        for (var i = 0; i < message.paths.length; ++i)
-                            if (!$util.isString(message.paths[i]))
-                                return "paths: string[] expected";
-                    }
-                    return null;
-                };
-    
-                /**
-                 * Creates a FieldMask message from a plain object. Also converts values to their respective internal types.
-                 * @function fromObject
-                 * @memberof google.protobuf.FieldMask
-                 * @static
-                 * @param {Object.<string,*>} object Plain object
-                 * @returns {google.protobuf.FieldMask} FieldMask
-                 */
-                FieldMask.fromObject = function fromObject(object) {
-                    if (object instanceof $root.google.protobuf.FieldMask)
-                        return object;
-                    var message = new $root.google.protobuf.FieldMask();
-                    if (object.paths) {
-                        if (!Array.isArray(object.paths))
-                            throw TypeError(".google.protobuf.FieldMask.paths: array expected");
-                        message.paths = [];
-                        for (var i = 0; i < object.paths.length; ++i)
-                            message.paths[i] = String(object.paths[i]);
-                    }
-                    return message;
-                };
-    
-                /**
-                 * Creates a plain object from a FieldMask message. Also converts values to other types if specified.
-                 * @function toObject
-                 * @memberof google.protobuf.FieldMask
-                 * @static
-                 * @param {google.protobuf.FieldMask} message FieldMask
-                 * @param {$protobuf.IConversionOptions} [options] Conversion options
-                 * @returns {Object.<string,*>} Plain object
-                 */
-                FieldMask.toObject = function toObject(message, options) {
-                    if (!options)
-                        options = {};
-                    var object = {};
-                    if (options.arrays || options.defaults)
-                        object.paths = [];
-                    if (message.paths && message.paths.length) {
-                        object.paths = [];
-                        for (var j = 0; j < message.paths.length; ++j)
-                            object.paths[j] = message.paths[j];
-                    }
-                    return object;
-                };
-    
-                /**
-                 * Converts this FieldMask to JSON.
-                 * @function toJSON
-                 * @memberof google.protobuf.FieldMask
-                 * @instance
-                 * @returns {Object.<string,*>} JSON object
-                 */
-                FieldMask.prototype.toJSON = function toJSON() {
-                    return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
-                };
-    
-                return FieldMask;
-            })();
-    
             protobuf.DoubleValue = (function() {
     
                 /**
@@ -44843,7 +45920,7 @@
                     };
     
                     /**
-                     * Callback as used by {@link google.iam.v1.IAMPolicy#setIamPolicy}.
+                     * Callback as used by {@link google.iam.v1.IAMPolicy|setIamPolicy}.
                      * @memberof google.iam.v1.IAMPolicy
                      * @typedef SetIamPolicyCallback
                      * @type {function}
@@ -44876,7 +45953,7 @@
                      */
     
                     /**
-                     * Callback as used by {@link google.iam.v1.IAMPolicy#getIamPolicy}.
+                     * Callback as used by {@link google.iam.v1.IAMPolicy|getIamPolicy}.
                      * @memberof google.iam.v1.IAMPolicy
                      * @typedef GetIamPolicyCallback
                      * @type {function}
@@ -44909,7 +45986,7 @@
                      */
     
                     /**
-                     * Callback as used by {@link google.iam.v1.IAMPolicy#testIamPermissions}.
+                     * Callback as used by {@link google.iam.v1.IAMPolicy|testIamPermissions}.
                      * @memberof google.iam.v1.IAMPolicy
                      * @typedef TestIamPermissionsCallback
                      * @type {function}
@@ -44952,6 +46029,7 @@
                      * @interface ISetIamPolicyRequest
                      * @property {string|null} [resource] SetIamPolicyRequest resource
                      * @property {google.iam.v1.IPolicy|null} [policy] SetIamPolicyRequest policy
+                     * @property {google.protobuf.IFieldMask|null} [updateMask] SetIamPolicyRequest updateMask
                      */
     
                     /**
@@ -44985,6 +46063,14 @@
                      */
                     SetIamPolicyRequest.prototype.policy = null;
     
+                    /**
+                     * SetIamPolicyRequest updateMask.
+                     * @member {google.protobuf.IFieldMask|null|undefined} updateMask
+                     * @memberof google.iam.v1.SetIamPolicyRequest
+                     * @instance
+                     */
+                    SetIamPolicyRequest.prototype.updateMask = null;
+    
                     /**
                      * Creates a new SetIamPolicyRequest instance using the specified properties.
                      * @function create
@@ -45013,6 +46099,8 @@
                             writer.uint32(/* id 1, wireType 2 =*/10).string(message.resource);
                         if (message.policy != null && Object.hasOwnProperty.call(message, "policy"))
                             $root.google.iam.v1.Policy.encode(message.policy, writer.uint32(/* id 2, wireType 2 =*/18).fork()).ldelim();
+                        if (message.updateMask != null && Object.hasOwnProperty.call(message, "updateMask"))
+                            $root.google.protobuf.FieldMask.encode(message.updateMask, writer.uint32(/* id 3, wireType 2 =*/26).fork()).ldelim();
                         return writer;
                     };
     
@@ -45053,6 +46141,9 @@
                             case 2:
                                 message.policy = $root.google.iam.v1.Policy.decode(reader, reader.uint32());
                                 break;
+                            case 3:
+                                message.updateMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32());
+                                break;
                             default:
                                 reader.skipType(tag & 7);
                                 break;
@@ -45096,6 +46187,11 @@
                             if (error)
                                 return "policy." + error;
                         }
+                        if (message.updateMask != null && message.hasOwnProperty("updateMask")) {
+                            var error = $root.google.protobuf.FieldMask.verify(message.updateMask);
+                            if (error)
+                                return "updateMask." + error;
+                        }
                         return null;
                     };
     
@@ -45118,6 +46214,11 @@
                                 throw TypeError(".google.iam.v1.SetIamPolicyRequest.policy: object expected");
                             message.policy = $root.google.iam.v1.Policy.fromObject(object.policy);
                         }
+                        if (object.updateMask != null) {
+                            if (typeof object.updateMask !== "object")
+                                throw TypeError(".google.iam.v1.SetIamPolicyRequest.updateMask: object expected");
+                            message.updateMask = $root.google.protobuf.FieldMask.fromObject(object.updateMask);
+                        }
                         return message;
                     };
     
@@ -45137,11 +46238,14 @@
                         if (options.defaults) {
                             object.resource = "";
                             object.policy = null;
+                            object.updateMask = null;
                         }
                         if (message.resource != null && message.hasOwnProperty("resource"))
                             object.resource = message.resource;
                         if (message.policy != null && message.hasOwnProperty("policy"))
                             object.policy = $root.google.iam.v1.Policy.toObject(message.policy, options);
+                        if (message.updateMask != null && message.hasOwnProperty("updateMask"))
+                            object.updateMask = $root.google.protobuf.FieldMask.toObject(message.updateMask, options);
                         return object;
                     };
     
@@ -45998,6 +47102,7 @@
                      * @interface IPolicy
                      * @property {number|null} [version] Policy version
                      * @property {Array.<google.iam.v1.IBinding>|null} [bindings] Policy bindings
+                     * @property {Array.<google.iam.v1.IAuditConfig>|null} [auditConfigs] Policy auditConfigs
                      * @property {Uint8Array|null} [etag] Policy etag
                      */
     
@@ -46011,6 +47116,7 @@
                      */
                     function Policy(properties) {
                         this.bindings = [];
+                        this.auditConfigs = [];
                         if (properties)
                             for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
                                 if (properties[keys[i]] != null)
@@ -46033,6 +47139,14 @@
                      */
                     Policy.prototype.bindings = $util.emptyArray;
     
+                    /**
+                     * Policy auditConfigs.
+                     * @member {Array.<google.iam.v1.IAuditConfig>} auditConfigs
+                     * @memberof google.iam.v1.Policy
+                     * @instance
+                     */
+                    Policy.prototype.auditConfigs = $util.emptyArray;
+    
                     /**
                      * Policy etag.
                      * @member {Uint8Array} etag
@@ -46072,6 +47186,9 @@
                         if (message.bindings != null && message.bindings.length)
                             for (var i = 0; i < message.bindings.length; ++i)
                                 $root.google.iam.v1.Binding.encode(message.bindings[i], writer.uint32(/* id 4, wireType 2 =*/34).fork()).ldelim();
+                        if (message.auditConfigs != null && message.auditConfigs.length)
+                            for (var i = 0; i < message.auditConfigs.length; ++i)
+                                $root.google.iam.v1.AuditConfig.encode(message.auditConfigs[i], writer.uint32(/* id 6, wireType 2 =*/50).fork()).ldelim();
                         return writer;
                     };
     
@@ -46114,6 +47231,11 @@
                                     message.bindings = [];
                                 message.bindings.push($root.google.iam.v1.Binding.decode(reader, reader.uint32()));
                                 break;
+                            case 6:
+                                if (!(message.auditConfigs && message.auditConfigs.length))
+                                    message.auditConfigs = [];
+                                message.auditConfigs.push($root.google.iam.v1.AuditConfig.decode(reader, reader.uint32()));
+                                break;
                             case 3:
                                 message.etag = reader.bytes();
                                 break;
@@ -46164,6 +47286,15 @@
                                     return "bindings." + error;
                             }
                         }
+                        if (message.auditConfigs != null && message.hasOwnProperty("auditConfigs")) {
+                            if (!Array.isArray(message.auditConfigs))
+                                return "auditConfigs: array expected";
+                            for (var i = 0; i < message.auditConfigs.length; ++i) {
+                                var error = $root.google.iam.v1.AuditConfig.verify(message.auditConfigs[i]);
+                                if (error)
+                                    return "auditConfigs." + error;
+                            }
+                        }
                         if (message.etag != null && message.hasOwnProperty("etag"))
                             if (!(message.etag && typeof message.etag.length === "number" || $util.isString(message.etag)))
                                 return "etag: buffer expected";
@@ -46194,6 +47325,16 @@
                                 message.bindings[i] = $root.google.iam.v1.Binding.fromObject(object.bindings[i]);
                             }
                         }
+                        if (object.auditConfigs) {
+                            if (!Array.isArray(object.auditConfigs))
+                                throw TypeError(".google.iam.v1.Policy.auditConfigs: array expected");
+                            message.auditConfigs = [];
+                            for (var i = 0; i < object.auditConfigs.length; ++i) {
+                                if (typeof object.auditConfigs[i] !== "object")
+                                    throw TypeError(".google.iam.v1.Policy.auditConfigs: object expected");
+                                message.auditConfigs[i] = $root.google.iam.v1.AuditConfig.fromObject(object.auditConfigs[i]);
+                            }
+                        }
                         if (object.etag != null)
                             if (typeof object.etag === "string")
                                 $util.base64.decode(object.etag, message.etag = $util.newBuffer($util.base64.length(object.etag)), 0);
@@ -46215,8 +47356,10 @@
                         if (!options)
                             options = {};
                         var object = {};
-                        if (options.arrays || options.defaults)
+                        if (options.arrays || options.defaults) {
                             object.bindings = [];
+                            object.auditConfigs = [];
+                        }
                         if (options.defaults) {
                             object.version = 0;
                             if (options.bytes === String)
@@ -46236,6 +47379,11 @@
                             for (var j = 0; j < message.bindings.length; ++j)
                                 object.bindings[j] = $root.google.iam.v1.Binding.toObject(message.bindings[j], options);
                         }
+                        if (message.auditConfigs && message.auditConfigs.length) {
+                            object.auditConfigs = [];
+                            for (var j = 0; j < message.auditConfigs.length; ++j)
+                                object.auditConfigs[j] = $root.google.iam.v1.AuditConfig.toObject(message.auditConfigs[j], options);
+                        }
                         return object;
                     };
     
@@ -46507,6 +47655,504 @@
                     return Binding;
                 })();
     
+                v1.AuditConfig = (function() {
+    
+                    /**
+                     * Properties of an AuditConfig.
+                     * @memberof google.iam.v1
+                     * @interface IAuditConfig
+                     * @property {string|null} [service] AuditConfig service
+                     * @property {Array.<google.iam.v1.IAuditLogConfig>|null} [auditLogConfigs] AuditConfig auditLogConfigs
+                     */
+    
+                    /**
+                     * Constructs a new AuditConfig.
+                     * @memberof google.iam.v1
+                     * @classdesc Represents an AuditConfig.
+                     * @implements IAuditConfig
+                     * @constructor
+                     * @param {google.iam.v1.IAuditConfig=} [properties] Properties to set
+                     */
+                    function AuditConfig(properties) {
+                        this.auditLogConfigs = [];
+                        if (properties)
+                            for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                if (properties[keys[i]] != null)
+                                    this[keys[i]] = properties[keys[i]];
+                    }
+    
+                    /**
+                     * AuditConfig service.
+                     * @member {string} service
+                     * @memberof google.iam.v1.AuditConfig
+                     * @instance
+                     */
+                    AuditConfig.prototype.service = "";
+    
+                    /**
+                     * AuditConfig auditLogConfigs.
+                     * @member {Array.<google.iam.v1.IAuditLogConfig>} auditLogConfigs
+                     * @memberof google.iam.v1.AuditConfig
+                     * @instance
+                     */
+                    AuditConfig.prototype.auditLogConfigs = $util.emptyArray;
+    
+                    /**
+                     * Creates a new AuditConfig instance using the specified properties.
+                     * @function create
+                     * @memberof google.iam.v1.AuditConfig
+                     * @static
+                     * @param {google.iam.v1.IAuditConfig=} [properties] Properties to set
+                     * @returns {google.iam.v1.AuditConfig} AuditConfig instance
+                     */
+                    AuditConfig.create = function create(properties) {
+                        return new AuditConfig(properties);
+                    };
+    
+                    /**
+                     * Encodes the specified AuditConfig message. Does not implicitly {@link google.iam.v1.AuditConfig.verify|verify} messages.
+                     * @function encode
+                     * @memberof google.iam.v1.AuditConfig
+                     * @static
+                     * @param {google.iam.v1.IAuditConfig} message AuditConfig message or plain object to encode
+                     * @param {$protobuf.Writer} [writer] Writer to encode to
+                     * @returns {$protobuf.Writer} Writer
+                     */
+                    AuditConfig.encode = function encode(message, writer) {
+                        if (!writer)
+                            writer = $Writer.create();
+                        if (message.service != null && Object.hasOwnProperty.call(message, "service"))
+                            writer.uint32(/* id 1, wireType 2 =*/10).string(message.service);
+                        if (message.auditLogConfigs != null && message.auditLogConfigs.length)
+                            for (var i = 0; i < message.auditLogConfigs.length; ++i)
+                                $root.google.iam.v1.AuditLogConfig.encode(message.auditLogConfigs[i], writer.uint32(/* id 3, wireType 2 =*/26).fork()).ldelim();
+                        return writer;
+                    };
+    
+                    /**
+                     * Encodes the specified AuditConfig message, length delimited. Does not implicitly {@link google.iam.v1.AuditConfig.verify|verify} messages.
+                     * @function encodeDelimited
+                     * @memberof google.iam.v1.AuditConfig
+                     * @static
+                     * @param {google.iam.v1.IAuditConfig} message AuditConfig message or plain object to encode
+                     * @param {$protobuf.Writer} [writer] Writer to encode to
+                     * @returns {$protobuf.Writer} Writer
+                     */
+                    AuditConfig.encodeDelimited = function encodeDelimited(message, writer) {
+                        return this.encode(message, writer).ldelim();
+                    };
+    
+                    /**
+                     * Decodes an AuditConfig message from the specified reader or buffer.
+                     * @function decode
+                     * @memberof google.iam.v1.AuditConfig
+                     * @static
+                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                     * @param {number} [length] Message length if known beforehand
+                     * @returns {google.iam.v1.AuditConfig} AuditConfig
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    AuditConfig.decode = function decode(reader, length) {
+                        if (!(reader instanceof $Reader))
+                            reader = $Reader.create(reader);
+                        var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.AuditConfig();
+                        while (reader.pos < end) {
+                            var tag = reader.uint32();
+                            switch (tag >>> 3) {
+                            case 1:
+                                message.service = reader.string();
+                                break;
+                            case 3:
+                                if (!(message.auditLogConfigs && message.auditLogConfigs.length))
+                                    message.auditLogConfigs = [];
+                                message.auditLogConfigs.push($root.google.iam.v1.AuditLogConfig.decode(reader, reader.uint32()));
+                                break;
+                            default:
+                                reader.skipType(tag & 7);
+                                break;
+                            }
+                        }
+                        return message;
+                    };
+    
+                    /**
+                     * Decodes an AuditConfig message from the specified reader or buffer, length delimited.
+                     * @function decodeDelimited
+                     * @memberof google.iam.v1.AuditConfig
+                     * @static
+                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                     * @returns {google.iam.v1.AuditConfig} AuditConfig
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    AuditConfig.decodeDelimited = function decodeDelimited(reader) {
+                        if (!(reader instanceof $Reader))
+                            reader = new $Reader(reader);
+                        return this.decode(reader, reader.uint32());
+                    };
+    
+                    /**
+                     * Verifies an AuditConfig message.
+                     * @function verify
+                     * @memberof google.iam.v1.AuditConfig
+                     * @static
+                     * @param {Object.<string,*>} message Plain object to verify
+                     * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                     */
+                    AuditConfig.verify = function verify(message) {
+                        if (typeof message !== "object" || message === null)
+                            return "object expected";
+                        if (message.service != null && message.hasOwnProperty("service"))
+                            if (!$util.isString(message.service))
+                                return "service: string expected";
+                        if (message.auditLogConfigs != null && message.hasOwnProperty("auditLogConfigs")) {
+                            if (!Array.isArray(message.auditLogConfigs))
+                                return "auditLogConfigs: array expected";
+                            for (var i = 0; i < message.auditLogConfigs.length; ++i) {
+                                var error = $root.google.iam.v1.AuditLogConfig.verify(message.auditLogConfigs[i]);
+                                if (error)
+                                    return "auditLogConfigs." + error;
+                            }
+                        }
+                        return null;
+                    };
+    
+                    /**
+                     * Creates an AuditConfig message from a plain object. Also converts values to their respective internal types.
+                     * @function fromObject
+                     * @memberof google.iam.v1.AuditConfig
+                     * @static
+                     * @param {Object.<string,*>} object Plain object
+                     * @returns {google.iam.v1.AuditConfig} AuditConfig
+                     */
+                    AuditConfig.fromObject = function fromObject(object) {
+                        if (object instanceof $root.google.iam.v1.AuditConfig)
+                            return object;
+                        var message = new $root.google.iam.v1.AuditConfig();
+                        if (object.service != null)
+                            message.service = String(object.service);
+                        if (object.auditLogConfigs) {
+                            if (!Array.isArray(object.auditLogConfigs))
+                                throw TypeError(".google.iam.v1.AuditConfig.auditLogConfigs: array expected");
+                            message.auditLogConfigs = [];
+                            for (var i = 0; i < object.auditLogConfigs.length; ++i) {
+                                if (typeof object.auditLogConfigs[i] !== "object")
+                                    throw TypeError(".google.iam.v1.AuditConfig.auditLogConfigs: object expected");
+                                message.auditLogConfigs[i] = $root.google.iam.v1.AuditLogConfig.fromObject(object.auditLogConfigs[i]);
+                            }
+                        }
+                        return message;
+                    };
+    
+                    /**
+                     * Creates a plain object from an AuditConfig message. Also converts values to other types if specified.
+                     * @function toObject
+                     * @memberof google.iam.v1.AuditConfig
+                     * @static
+                     * @param {google.iam.v1.AuditConfig} message AuditConfig
+                     * @param {$protobuf.IConversionOptions} [options] Conversion options
+                     * @returns {Object.<string,*>} Plain object
+                     */
+                    AuditConfig.toObject = function toObject(message, options) {
+                        if (!options)
+                            options = {};
+                        var object = {};
+                        if (options.arrays || options.defaults)
+                            object.auditLogConfigs = [];
+                        if (options.defaults)
+                            object.service = "";
+                        if (message.service != null && message.hasOwnProperty("service"))
+                            object.service = message.service;
+                        if (message.auditLogConfigs && message.auditLogConfigs.length) {
+                            object.auditLogConfigs = [];
+                            for (var j = 0; j < message.auditLogConfigs.length; ++j)
+                                object.auditLogConfigs[j] = $root.google.iam.v1.AuditLogConfig.toObject(message.auditLogConfigs[j], options);
+                        }
+                        return object;
+                    };
+    
+                    /**
+                     * Converts this AuditConfig to JSON.
+                     * @function toJSON
+                     * @memberof google.iam.v1.AuditConfig
+                     * @instance
+                     * @returns {Object.<string,*>} JSON object
+                     */
+                    AuditConfig.prototype.toJSON = function toJSON() {
+                        return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                    };
+    
+                    return AuditConfig;
+                })();
+    
+                v1.AuditLogConfig = (function() {
+    
+                    /**
+                     * Properties of an AuditLogConfig.
+                     * @memberof google.iam.v1
+                     * @interface IAuditLogConfig
+                     * @property {google.iam.v1.AuditLogConfig.LogType|null} [logType] AuditLogConfig logType
+                     * @property {Array.<string>|null} [exemptedMembers] AuditLogConfig exemptedMembers
+                     */
+    
+                    /**
+                     * Constructs a new AuditLogConfig.
+                     * @memberof google.iam.v1
+                     * @classdesc Represents an AuditLogConfig.
+                     * @implements IAuditLogConfig
+                     * @constructor
+                     * @param {google.iam.v1.IAuditLogConfig=} [properties] Properties to set
+                     */
+                    function AuditLogConfig(properties) {
+                        this.exemptedMembers = [];
+                        if (properties)
+                            for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                if (properties[keys[i]] != null)
+                                    this[keys[i]] = properties[keys[i]];
+                    }
+    
+                    /**
+                     * AuditLogConfig logType.
+                     * @member {google.iam.v1.AuditLogConfig.LogType} logType
+                     * @memberof google.iam.v1.AuditLogConfig
+                     * @instance
+                     */
+                    AuditLogConfig.prototype.logType = 0;
+    
+                    /**
+                     * AuditLogConfig exemptedMembers.
+                     * @member {Array.<string>} exemptedMembers
+                     * @memberof google.iam.v1.AuditLogConfig
+                     * @instance
+                     */
+                    AuditLogConfig.prototype.exemptedMembers = $util.emptyArray;
+    
+                    /**
+                     * Creates a new AuditLogConfig instance using the specified properties.
+                     * @function create
+                     * @memberof google.iam.v1.AuditLogConfig
+                     * @static
+                     * @param {google.iam.v1.IAuditLogConfig=} [properties] Properties to set
+                     * @returns {google.iam.v1.AuditLogConfig} AuditLogConfig instance
+                     */
+                    AuditLogConfig.create = function create(properties) {
+                        return new AuditLogConfig(properties);
+                    };
+    
+                    /**
+                     * Encodes the specified AuditLogConfig message. Does not implicitly {@link google.iam.v1.AuditLogConfig.verify|verify} messages.
+                     * @function encode
+                     * @memberof google.iam.v1.AuditLogConfig
+                     * @static
+                     * @param {google.iam.v1.IAuditLogConfig} message AuditLogConfig message or plain object to encode
+                     * @param {$protobuf.Writer} [writer] Writer to encode to
+                     * @returns {$protobuf.Writer} Writer
+                     */
+                    AuditLogConfig.encode = function encode(message, writer) {
+                        if (!writer)
+                            writer = $Writer.create();
+                        if (message.logType != null && Object.hasOwnProperty.call(message, "logType"))
+                            writer.uint32(/* id 1, wireType 0 =*/8).int32(message.logType);
+                        if (message.exemptedMembers != null && message.exemptedMembers.length)
+                            for (var i = 0; i < message.exemptedMembers.length; ++i)
+                                writer.uint32(/* id 2, wireType 2 =*/18).string(message.exemptedMembers[i]);
+                        return writer;
+                    };
+    
+                    /**
+                     * Encodes the specified AuditLogConfig message, length delimited. Does not implicitly {@link google.iam.v1.AuditLogConfig.verify|verify} messages.
+                     * @function encodeDelimited
+                     * @memberof google.iam.v1.AuditLogConfig
+                     * @static
+                     * @param {google.iam.v1.IAuditLogConfig} message AuditLogConfig message or plain object to encode
+                     * @param {$protobuf.Writer} [writer] Writer to encode to
+                     * @returns {$protobuf.Writer} Writer
+                     */
+                    AuditLogConfig.encodeDelimited = function encodeDelimited(message, writer) {
+                        return this.encode(message, writer).ldelim();
+                    };
+    
+                    /**
+                     * Decodes an AuditLogConfig message from the specified reader or buffer.
+                     * @function decode
+                     * @memberof google.iam.v1.AuditLogConfig
+                     * @static
+                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                     * @param {number} [length] Message length if known beforehand
+                     * @returns {google.iam.v1.AuditLogConfig} AuditLogConfig
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    AuditLogConfig.decode = function decode(reader, length) {
+                        if (!(reader instanceof $Reader))
+                            reader = $Reader.create(reader);
+                        var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.iam.v1.AuditLogConfig();
+                        while (reader.pos < end) {
+                            var tag = reader.uint32();
+                            switch (tag >>> 3) {
+                            case 1:
+                                message.logType = reader.int32();
+                                break;
+                            case 2:
+                                if (!(message.exemptedMembers && message.exemptedMembers.length))
+                                    message.exemptedMembers = [];
+                                message.exemptedMembers.push(reader.string());
+                                break;
+                            default:
+                                reader.skipType(tag & 7);
+                                break;
+                            }
+                        }
+                        return message;
+                    };
+    
+                    /**
+                     * Decodes an AuditLogConfig message from the specified reader or buffer, length delimited.
+                     * @function decodeDelimited
+                     * @memberof google.iam.v1.AuditLogConfig
+                     * @static
+                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                     * @returns {google.iam.v1.AuditLogConfig} AuditLogConfig
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    AuditLogConfig.decodeDelimited = function decodeDelimited(reader) {
+                        if (!(reader instanceof $Reader))
+                            reader = new $Reader(reader);
+                        return this.decode(reader, reader.uint32());
+                    };
+    
+                    /**
+                     * Verifies an AuditLogConfig message.
+                     * @function verify
+                     * @memberof google.iam.v1.AuditLogConfig
+                     * @static
+                     * @param {Object.<string,*>} message Plain object to verify
+                     * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                     */
+                    AuditLogConfig.verify = function verify(message) {
+                        if (typeof message !== "object" || message === null)
+                            return "object expected";
+                        if (message.logType != null && message.hasOwnProperty("logType"))
+                            switch (message.logType) {
+                            default:
+                                return "logType: enum value expected";
+                            case 0:
+                            case 1:
+                            case 2:
+                            case 3:
+                                break;
+                            }
+                        if (message.exemptedMembers != null && message.hasOwnProperty("exemptedMembers")) {
+                            if (!Array.isArray(message.exemptedMembers))
+                                return "exemptedMembers: array expected";
+                            for (var i = 0; i < message.exemptedMembers.length; ++i)
+                                if (!$util.isString(message.exemptedMembers[i]))
+                                    return "exemptedMembers: string[] expected";
+                        }
+                        return null;
+                    };
+    
+                    /**
+                     * Creates an AuditLogConfig message from a plain object. Also converts values to their respective internal types.
+                     * @function fromObject
+                     * @memberof google.iam.v1.AuditLogConfig
+                     * @static
+                     * @param {Object.<string,*>} object Plain object
+                     * @returns {google.iam.v1.AuditLogConfig} AuditLogConfig
+                     */
+                    AuditLogConfig.fromObject = function fromObject(object) {
+                        if (object instanceof $root.google.iam.v1.AuditLogConfig)
+                            return object;
+                        var message = new $root.google.iam.v1.AuditLogConfig();
+                        switch (object.logType) {
+                        case "LOG_TYPE_UNSPECIFIED":
+                        case 0:
+                            message.logType = 0;
+                            break;
+                        case "ADMIN_READ":
+                        case 1:
+                            message.logType = 1;
+                            break;
+                        case "DATA_WRITE":
+                        case 2:
+                            message.logType = 2;
+                            break;
+                        case "DATA_READ":
+                        case 3:
+                            message.logType = 3;
+                            break;
+                        }
+                        if (object.exemptedMembers) {
+                            if (!Array.isArray(object.exemptedMembers))
+                                throw TypeError(".google.iam.v1.AuditLogConfig.exemptedMembers: array expected");
+                            message.exemptedMembers = [];
+                            for (var i = 0; i < object.exemptedMembers.length; ++i)
+                                message.exemptedMembers[i] = String(object.exemptedMembers[i]);
+                        }
+                        return message;
+                    };
+    
+                    /**
+                     * Creates a plain object from an AuditLogConfig message. Also converts values to other types if specified.
+                     * @function toObject
+                     * @memberof google.iam.v1.AuditLogConfig
+                     * @static
+                     * @param {google.iam.v1.AuditLogConfig} message AuditLogConfig
+                     * @param {$protobuf.IConversionOptions} [options] Conversion options
+                     * @returns {Object.<string,*>} Plain object
+                     */
+                    AuditLogConfig.toObject = function toObject(message, options) {
+                        if (!options)
+                            options = {};
+                        var object = {};
+                        if (options.arrays || options.defaults)
+                            object.exemptedMembers = [];
+                        if (options.defaults)
+                            object.logType = options.enums === String ? "LOG_TYPE_UNSPECIFIED" : 0;
+                        if (message.logType != null && message.hasOwnProperty("logType"))
+                            object.logType = options.enums === String ? $root.google.iam.v1.AuditLogConfig.LogType[message.logType] : message.logType;
+                        if (message.exemptedMembers && message.exemptedMembers.length) {
+                            object.exemptedMembers = [];
+                            for (var j = 0; j < message.exemptedMembers.length; ++j)
+                                object.exemptedMembers[j] = message.exemptedMembers[j];
+                        }
+                        return object;
+                    };
+    
+                    /**
+                     * Converts this AuditLogConfig to JSON.
+                     * @function toJSON
+                     * @memberof google.iam.v1.AuditLogConfig
+                     * @instance
+                     * @returns {Object.<string,*>} JSON object
+                     */
+                    AuditLogConfig.prototype.toJSON = function toJSON() {
+                        return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                    };
+    
+                    /**
+                     * LogType enum.
+                     * @name google.iam.v1.AuditLogConfig.LogType
+                     * @enum {number}
+                     * @property {number} LOG_TYPE_UNSPECIFIED=0 LOG_TYPE_UNSPECIFIED value
+                     * @property {number} ADMIN_READ=1 ADMIN_READ value
+                     * @property {number} DATA_WRITE=2 DATA_WRITE value
+                     * @property {number} DATA_READ=3 DATA_READ value
+                     */
+                    AuditLogConfig.LogType = (function() {
+                        var valuesById = {}, values = Object.create(valuesById);
+                        values[valuesById[0] = "LOG_TYPE_UNSPECIFIED"] = 0;
+                        values[valuesById[1] = "ADMIN_READ"] = 1;
+                        values[valuesById[2] = "DATA_WRITE"] = 2;
+                        values[valuesById[3] = "DATA_READ"] = 3;
+                        return values;
+                    })();
+    
+                    return AuditLogConfig;
+                })();
+    
                 v1.PolicyDelta = (function() {
     
                     /**
@@ -47654,7 +49300,7 @@
                 };
     
                 /**
-                 * Callback as used by {@link google.longrunning.Operations#listOperations}.
+                 * Callback as used by {@link google.longrunning.Operations|listOperations}.
                  * @memberof google.longrunning.Operations
                  * @typedef ListOperationsCallback
                  * @type {function}
@@ -47687,7 +49333,7 @@
                  */
     
                 /**
-                 * Callback as used by {@link google.longrunning.Operations#getOperation}.
+                 * Callback as used by {@link google.longrunning.Operations|getOperation}.
                  * @memberof google.longrunning.Operations
                  * @typedef GetOperationCallback
                  * @type {function}
@@ -47720,7 +49366,7 @@
                  */
     
                 /**
-                 * Callback as used by {@link google.longrunning.Operations#deleteOperation}.
+                 * Callback as used by {@link google.longrunning.Operations|deleteOperation}.
                  * @memberof google.longrunning.Operations
                  * @typedef DeleteOperationCallback
                  * @type {function}
@@ -47753,7 +49399,7 @@
                  */
     
                 /**
-                 * Callback as used by {@link google.longrunning.Operations#cancelOperation}.
+                 * Callback as used by {@link google.longrunning.Operations|cancelOperation}.
                  * @memberof google.longrunning.Operations
                  * @typedef CancelOperationCallback
                  * @type {function}
@@ -47786,7 +49432,7 @@
                  */
     
                 /**
-                 * Callback as used by {@link google.longrunning.Operations#waitOperation}.
+                 * Callback as used by {@link google.longrunning.Operations|waitOperation}.
                  * @memberof google.longrunning.Operations
                  * @typedef WaitOperationCallback
                  * @type {function}
diff --git a/protos/protos.json b/protos/protos.json
index 2d250f758..5d444ffb4 100644
--- a/protos/protos.json
+++ b/protos/protos.json
@@ -963,6 +963,13 @@
                         "(google.api.resource).type": "bigtableadmin.googleapis.com/Instance",
                         "(google.api.resource).pattern": "projects/{project}/instances/{instance}"
                       },
+                      "oneofs": {
+                        "_satisfiesPzs": {
+                          "oneof": [
+                            "satisfiesPzs"
+                          ]
+                        }
+                      },
                       "fields": {
                         "name": {
                           "type": "string",
@@ -977,16 +984,25 @@
                         },
                         "state": {
                           "type": "State",
-                          "id": 3
+                          "id": 3,
+                          "options": {
+                            "(google.api.field_behavior)": "OUTPUT_ONLY"
+                          }
                         },
                         "type": {
                           "type": "Type",
-                          "id": 4
+                          "id": 4,
+                          "options": {
+                            "(google.api.field_behavior)": "REQUIRED"
+                          }
                         },
                         "labels": {
                           "keyType": "string",
                           "type": "string",
-                          "id": 5
+                          "id": 5,
+                          "options": {
+                            "(google.api.field_behavior)": "REQUIRED"
+                          }
                         },
                         "createTime": {
                           "type": "google.protobuf.Timestamp",
@@ -994,6 +1010,14 @@
                           "options": {
                             "(google.api.field_behavior)": "OUTPUT_ONLY"
                           }
+                        },
+                        "satisfiesPzs": {
+                          "type": "bool",
+                          "id": 8,
+                          "options": {
+                            "(google.api.field_behavior)": "OUTPUT_ONLY",
+                            "proto3_optional": true
+                          }
                         }
                       },
                       "nested": {
@@ -1018,6 +1042,10 @@
                         "cpuUtilizationPercent": {
                           "type": "int32",
                           "id": 2
+                        },
+                        "storageUtilizationGibPerNode": {
+                          "type": "int32",
+                          "id": 3
                         }
                       }
                     },
@@ -1381,6 +1409,34 @@
                             }
                           ]
                         },
+                        "UndeleteTable": {
+                          "requestType": "UndeleteTableRequest",
+                          "responseType": "google.longrunning.Operation",
+                          "options": {
+                            "(google.api.http).post": "/v2/{name=projects/*/instances/*/tables/*}:undelete",
+                            "(google.api.http).body": "*",
+                            "(google.api.method_signature)": "name",
+                            "(google.longrunning.operation_info).response_type": "Table",
+                            "(google.longrunning.operation_info).metadata_type": "UndeleteTableMetadata"
+                          },
+                          "parsedOptions": [
+                            {
+                              "(google.api.http)": {
+                                "post": "/v2/{name=projects/*/instances/*/tables/*}:undelete",
+                                "body": "*"
+                              }
+                            },
+                            {
+                              "(google.api.method_signature)": "name"
+                            },
+                            {
+                              "(google.longrunning.operation_info)": {
+                                "response_type": "Table",
+                                "metadata_type": "UndeleteTableMetadata"
+                              }
+                            }
+                          ]
+                        },
                         "ModifyColumnFamilies": {
                           "requestType": "ModifyColumnFamiliesRequest",
                           "responseType": "Table",
@@ -1665,6 +1721,34 @@
                             }
                           ]
                         },
+                        "CopyBackup": {
+                          "requestType": "CopyBackupRequest",
+                          "responseType": "google.longrunning.Operation",
+                          "options": {
+                            "(google.api.http).post": "/v2/{parent=projects/*/instances/*/clusters/*}/backups:copy",
+                            "(google.api.http).body": "*",
+                            "(google.api.method_signature)": "parent,backup_id,source_backup,expire_time",
+                            "(google.longrunning.operation_info).response_type": "Backup",
+                            "(google.longrunning.operation_info).metadata_type": "CopyBackupMetadata"
+                          },
+                          "parsedOptions": [
+                            {
+                              "(google.api.http)": {
+                                "post": "/v2/{parent=projects/*/instances/*/clusters/*}/backups:copy",
+                                "body": "*"
+                              }
+                            },
+                            {
+                              "(google.api.method_signature)": "parent,backup_id,source_backup,expire_time"
+                            },
+                            {
+                              "(google.longrunning.operation_info)": {
+                                "response_type": "Backup",
+                                "metadata_type": "CopyBackupMetadata"
+                              }
+                            }
+                          ]
+                        },
                         "GetIamPolicy": {
                           "requestType": "google.iam.v1.GetIamPolicyRequest",
                           "responseType": "google.iam.v1.Policy",
@@ -1982,6 +2066,34 @@
                         }
                       }
                     },
+                    "UndeleteTableRequest": {
+                      "fields": {
+                        "name": {
+                          "type": "string",
+                          "id": 1,
+                          "options": {
+                            "(google.api.field_behavior)": "REQUIRED",
+                            "(google.api.resource_reference).type": "bigtableadmin.googleapis.com/Table"
+                          }
+                        }
+                      }
+                    },
+                    "UndeleteTableMetadata": {
+                      "fields": {
+                        "name": {
+                          "type": "string",
+                          "id": 1
+                        },
+                        "startTime": {
+                          "type": "google.protobuf.Timestamp",
+                          "id": 2
+                        },
+                        "endTime": {
+                          "type": "google.protobuf.Timestamp",
+                          "id": 3
+                        }
+                      }
+                    },
                     "ModifyColumnFamiliesRequest": {
                       "fields": {
                         "name": {
@@ -2333,6 +2445,62 @@
                         }
                       }
                     },
+                    "CopyBackupRequest": {
+                      "fields": {
+                        "parent": {
+                          "type": "string",
+                          "id": 1,
+                          "options": {
+                            "(google.api.field_behavior)": "REQUIRED",
+                            "(google.api.resource_reference).type": "bigtableadmin.googleapis.com/Cluster"
+                          }
+                        },
+                        "backupId": {
+                          "type": "string",
+                          "id": 2,
+                          "options": {
+                            "(google.api.field_behavior)": "REQUIRED"
+                          }
+                        },
+                        "sourceBackup": {
+                          "type": "string",
+                          "id": 3,
+                          "options": {
+                            "(google.api.field_behavior)": "REQUIRED",
+                            "(google.api.resource_reference).type": "bigtableadmin.googleapis.com/Backup"
+                          }
+                        },
+                        "expireTime": {
+                          "type": "google.protobuf.Timestamp",
+                          "id": 4,
+                          "options": {
+                            "(google.api.field_behavior)": "REQUIRED"
+                          }
+                        }
+                      }
+                    },
+                    "CopyBackupMetadata": {
+                      "fields": {
+                        "name": {
+                          "type": "string",
+                          "id": 1,
+                          "options": {
+                            "(google.api.resource_reference).type": "bigtableadmin.googleapis.com/Backup"
+                          }
+                        },
+                        "sourceBackup": {
+                          "type": "string",
+                          "id": 2,
+                          "options": {
+                            "(google.api.resource_reference).type": "bigtableadmin.googleapis.com/Backup"
+                          }
+                        },
+                        "progress": {
+                          "type": "OperationProgress",
+                          "id": 3
+                        }
+                      }
+                    },
                     "RestoreInfo": {
                       "oneofs": {
                         "sourceInfo": {
@@ -2545,15 +2713,24 @@
                         },
                         "sourceTable": {
                           "type": "Table",
-                          "id": 2
+                          "id": 2,
+                          "options": {
+                            "(google.api.field_behavior)": "OUTPUT_ONLY"
+                          }
                         },
                         "dataSizeBytes": {
                           "type": "int64",
-                          "id": 3
+                          "id": 3,
+                          "options": {
+                            "(google.api.field_behavior)": "OUTPUT_ONLY"
+                          }
                         },
                         "createTime": {
                           "type": "google.protobuf.Timestamp",
-                          "id": 4
+                          "id": 4,
+                          "options": {
+                            "(google.api.field_behavior)": "OUTPUT_ONLY"
+                          }
                         },
                         "deleteTime": {
                           "type": "google.protobuf.Timestamp",
@@ -2561,7 +2738,10 @@
                         },
                         "state": {
                           "type": "State",
-                          "id": 6
+                          "id": 6,
+                          "options": {
+                            "(google.api.field_behavior)": "OUTPUT_ONLY"
+                          }
                         },
                         "description": {
                           "type": "string",
@@ -4586,6 +4766,13 @@
                     "default": false
                   }
                 },
+                "unverifiedLazy": {
+                  "type": "bool",
+                  "id": 15,
+                  "options": {
+                    "default": false
+                  }
+                },
                 "deprecated": {
                   "type": "bool",
                   "id": 3,
@@ -4895,6 +5082,15 @@
                 }
               }
             },
+            "FieldMask": {
+              "fields": {
+                "paths": {
+                  "rule": "repeated",
+                  "type": "string",
+                  "id": 1
+                }
+              }
+            },
             "Any": {
               "fields": {
                 "type_url": {
@@ -4922,15 +5118,6 @@
             "Empty": {
               "fields": {}
             },
-            "FieldMask": {
-              "fields": {
-                "paths": {
-                  "rule": "repeated",
-                  "type": "string",
-                  "id": 1
-                }
-              }
-            },
             "DoubleValue": {
               "fields": {
                 "value": {
@@ -5089,6 +5276,10 @@
                       "options": {
                         "(google.api.field_behavior)": "REQUIRED"
                       }
+                    },
+                    "updateMask": {
+                      "type": "google.protobuf.FieldMask",
+                      "id": 3
                     }
                   }
                 },
@@ -5156,6 +5347,11 @@
                       "type": "Binding",
                       "id": 4
                     },
+                    "auditConfigs": {
+                      "rule": "repeated",
+                      "type": "AuditConfig",
+                      "id": 6
+                    },
                     "etag": {
                       "type": "bytes",
                       "id": 3
@@ -5179,6 +5375,42 @@
                     }
                   }
                 },
+                "AuditConfig": {
+                  "fields": {
+                    "service": {
+                      "type": "string",
+                      "id": 1
+                    },
+                    "auditLogConfigs": {
+                      "rule": "repeated",
+                      "type": "AuditLogConfig",
+                      "id": 3
+                    }
+                  }
+                },
+                "AuditLogConfig": {
+                  "fields": {
+                    "logType": {
+                      "type": "LogType",
+                      "id": 1
+                    },
+                    "exemptedMembers": {
+                      "rule": "repeated",
+                      "type": "string",
+                      "id": 2
+                    }
+                  },
+                  "nested": {
+                    "LogType": {
+                      "values": {
+                        "LOG_TYPE_UNSPECIFIED": 0,
+                        "ADMIN_READ": 1,
+                        "DATA_WRITE": 2,
+                        "DATA_READ": 3
+                      }
+                    }
+                  }
+                },
                 "PolicyDelta": {
                   "fields": {
                     "bindingDeltas": {
diff --git a/src/v2/bigtable_instance_admin_client.ts b/src/v2/bigtable_instance_admin_client.ts
index a044acc2f..63306282c 100644
--- a/src/v2/bigtable_instance_admin_client.ts
+++ b/src/v2/bigtable_instance_admin_client.ts
@@ -18,18 +18,10 @@
 
 /* global window */
 import * as gax from 'google-gax';
-import {
-  Callback,
-  CallOptions,
-  Descriptors,
-  ClientOptions,
-  LROperation,
-  PaginationCallback,
-  GaxCall,
-} from 'google-gax';
-
-import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
+import {Callback, CallOptions, Descriptors, ClientOptions, GrpcClientOptions, LROperation, PaginationCallback, GaxCall, LocationsClient, LocationProtos} from 'google-gax';
+
+import { Transform } from 'stream';
+import { RequestType } from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -38,7 +30,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './bigtable_instance_admin_client_config.json';
-import {operationsProtos} from 'google-gax';
+import { operationsProtos } from 'google-gax';
 const version = require('../../../package.json').version;
 
 /**
@@ -65,6 +57,7 @@ export class BigtableInstanceAdminClient {
   };
   warn: (code: string, message: string, warnType?: string) => void;
   innerApiCalls: {[name: string]: Function};
+  locationsClient: LocationsClient;
   pathTemplates: {[name: string]: gax.PathTemplate};
   operationsClient: gax.OperationsClient;
   bigtableInstanceAdminStub?: Promise<{[name: string]: Function}>;
@@ -74,7 +67,7 @@ export class BigtableInstanceAdminClient {
    *
    * @param {object} [options] - The configuration object.
    * The options accepted by the constructor are described in detail
-   * in [this document](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#creating-the-client-instance).
+   * in [this document](https://github.com/googleapis/gax-nodejs/blob/main/client-libraries.md#creating-the-client-instance).
    * The common options are:
    * @param {object} [options.credentials] - Credentials object.
    * @param {string} [options.credentials.client_email]
@@ -97,26 +90,19 @@ export class BigtableInstanceAdminClient {
    *     API remote host.
    * @param {gax.ClientConfig} [options.clientConfig] - Client configuration override.
    *     Follows the structure of {@link gapicConfig}.
-   * @param {boolean} [options.fallback] - Use HTTP fallback mode.
-   *     In fallback mode, a special browser-compatible transport implementation is used
-   *     instead of gRPC transport. In browser context (if the `window` object is defined)
-   *     the fallback mode is enabled automatically; set `options.fallback` to `false`
-   *     if you need to override this behavior.
+   * @param {boolean | "rest"} [options.fallback] - Use HTTP fallback mode.
+   *     Pass "rest" to use HTTP/1.1 REST API instead of gRPC.
+   *     For more information, please check the
+   *     {@link https://github.com/googleapis/gax-nodejs/blob/main/client-libraries.md#http11-rest-api-mode documentation}.
    */
   constructor(opts?: ClientOptions) {
     // Ensure that options include all the required fields.
-    const staticMembers = this
-      .constructor as typeof BigtableInstanceAdminClient;
-    const servicePath =
-      opts?.servicePath || opts?.apiEndpoint || staticMembers.servicePath;
-    this._providedCustomServicePath = !!(
-      opts?.servicePath || opts?.apiEndpoint
-    );
+    const staticMembers = this.constructor as typeof BigtableInstanceAdminClient;
+    const servicePath = opts?.servicePath || opts?.apiEndpoint || staticMembers.servicePath;
+    this._providedCustomServicePath = !!(opts?.servicePath || opts?.apiEndpoint);
     const port = opts?.port || staticMembers.port;
     const clientConfig = opts?.clientConfig ?? {};
-    const fallback =
-      opts?.fallback ??
-      (typeof window !== 'undefined' && typeof window?.fetch === 'function');
+    const fallback = opts?.fallback ?? (typeof window !== 'undefined' && typeof window?.fetch === 'function');
     opts = Object.assign({servicePath, port, clientConfig, fallback}, opts);
 
     // If scopes are unset in options and we're connecting to a non-default endpoint, set scopes just in case.
@@ -134,7 +120,7 @@ export class BigtableInstanceAdminClient {
     this._opts = opts;
 
     // Save the auth object to the client, for use by other methods.
-    this.auth = this._gaxGrpc.auth as gax.GoogleAuth;
+    this.auth = (this._gaxGrpc.auth as gax.GoogleAuth);
 
     // Set useJWTAccessWithScope on the auth object.
     this.auth.useJWTAccessWithScope = true;
@@ -146,9 +132,14 @@ export class BigtableInstanceAdminClient {
     if (servicePath === staticMembers.servicePath) {
       this.auth.defaultScopes = staticMembers.scopes;
     }
+    this.locationsClient = new LocationsClient(this._gaxGrpc, opts);
+  
 
     // Determine the client header string.
-    const clientHeader = [`gax/${this._gaxModule.version}`, `gapic/${version}`];
+    const clientHeader = [
+      `gax/${this._gaxModule.version}`,
+      `gapic/${version}`,
+    ];
     if (typeof process !== 'undefined' && 'versions' in process) {
       clientHeader.push(`gl-node/${process.versions.node}`);
     } else {
@@ -156,7 +147,7 @@ export class BigtableInstanceAdminClient {
     }
     if (!opts.fallback) {
       clientHeader.push(`grpc/${this._gaxGrpc.grpcVersion}`);
-    } else if (opts.fallback === 'rest') {
+    } else if (opts.fallback === 'rest' ) {
       clientHeader.push(`rest/${this._gaxGrpc.grpcVersion}`);
     }
     if (opts.libName && opts.libVersion) {
@@ -199,109 +190,81 @@ export class BigtableInstanceAdminClient {
     // (e.g. 50 results at a time, with tokens to get subsequent
     // pages). Denote the keys used for pagination and results.
     this.descriptors.page = {
-      listAppProfiles: new this._gaxModule.PageDescriptor(
-        'pageToken',
-        'nextPageToken',
-        'appProfiles'
-      ),
-      listHotTablets: new this._gaxModule.PageDescriptor(
-        'pageToken',
-        'nextPageToken',
-        'hotTablets'
-      ),
+      listAppProfiles:
+          new this._gaxModule.PageDescriptor('pageToken', 'nextPageToken', 'appProfiles'),
+      listHotTablets:
+          new this._gaxModule.PageDescriptor('pageToken', 'nextPageToken', 'hotTablets')
     };
 
     const protoFilesRoot = this._gaxModule.protobuf.Root.fromJSON(jsonProtos);
-
     // This API contains "long-running operations", which return a
     // an Operation object that allows for tracking of the operation,
     // rather than holding a request open.
-
-    this.operationsClient = this._gaxModule
-      .lro({
-        auth: this.auth,
-        grpc: 'grpc' in this._gaxGrpc ? this._gaxGrpc.grpc : undefined,
-      })
-      .operationsClient(opts);
+    const lroOptions: GrpcClientOptions = {
+      auth: this.auth,
+      grpc: 'grpc' in this._gaxGrpc ? this._gaxGrpc.grpc : undefined
+    };
+    if (opts.fallback === 'rest') {
+      lroOptions.protoJson = protoFilesRoot;
+      lroOptions.httpRules = [{selector: 'google.cloud.location.Locations.GetLocation',get: '/v2/{name=projects/*/locations/*}',},{selector: 'google.cloud.location.Locations.ListLocations',get: '/v2/{name=projects/*}/locations',},{selector: 'google.longrunning.Operations.CancelOperation',post: '/v2/{name=operations/**}:cancel',},{selector: 'google.longrunning.Operations.DeleteOperation',delete: '/v2/{name=operations/**}',},{selector: 'google.longrunning.Operations.GetOperation',get: '/v2/{name=operations/**}',},{selector: 'google.longrunning.Operations.ListOperations',get: '/v2/{name=operations/projects/**}/operations',}];
+    }
+    this.operationsClient = this._gaxModule.lro(lroOptions).operationsClient(opts);
     const createInstanceResponse = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.Instance'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.Instance') as gax.protobuf.Type;
     const createInstanceMetadata = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.CreateInstanceMetadata'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.CreateInstanceMetadata') as gax.protobuf.Type;
     const partialUpdateInstanceResponse = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.Instance'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.Instance') as gax.protobuf.Type;
     const partialUpdateInstanceMetadata = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.UpdateInstanceMetadata'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.UpdateInstanceMetadata') as gax.protobuf.Type;
     const createClusterResponse = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.Cluster'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.Cluster') as gax.protobuf.Type;
     const createClusterMetadata = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.CreateClusterMetadata'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.CreateClusterMetadata') as gax.protobuf.Type;
     const updateClusterResponse = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.Cluster'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.Cluster') as gax.protobuf.Type;
     const updateClusterMetadata = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.UpdateClusterMetadata'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.UpdateClusterMetadata') as gax.protobuf.Type;
     const partialUpdateClusterResponse = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.Cluster'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.Cluster') as gax.protobuf.Type;
     const partialUpdateClusterMetadata = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.PartialUpdateClusterMetadata'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.PartialUpdateClusterMetadata') as gax.protobuf.Type;
     const updateAppProfileResponse = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.AppProfile'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.AppProfile') as gax.protobuf.Type;
     const updateAppProfileMetadata = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.UpdateAppProfileMetadata'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.UpdateAppProfileMetadata') as gax.protobuf.Type;
 
     this.descriptors.longrunning = {
       createInstance: new this._gaxModule.LongrunningDescriptor(
         this.operationsClient,
         createInstanceResponse.decode.bind(createInstanceResponse),
-        createInstanceMetadata.decode.bind(createInstanceMetadata)
-      ),
+        createInstanceMetadata.decode.bind(createInstanceMetadata)),
       partialUpdateInstance: new this._gaxModule.LongrunningDescriptor(
         this.operationsClient,
-        partialUpdateInstanceResponse.decode.bind(
-          partialUpdateInstanceResponse
-        ),
-        partialUpdateInstanceMetadata.decode.bind(partialUpdateInstanceMetadata)
-      ),
+        partialUpdateInstanceResponse.decode.bind(partialUpdateInstanceResponse),
+        partialUpdateInstanceMetadata.decode.bind(partialUpdateInstanceMetadata)),
       createCluster: new this._gaxModule.LongrunningDescriptor(
         this.operationsClient,
         createClusterResponse.decode.bind(createClusterResponse),
-        createClusterMetadata.decode.bind(createClusterMetadata)
-      ),
+        createClusterMetadata.decode.bind(createClusterMetadata)),
       updateCluster: new this._gaxModule.LongrunningDescriptor(
         this.operationsClient,
         updateClusterResponse.decode.bind(updateClusterResponse),
-        updateClusterMetadata.decode.bind(updateClusterMetadata)
-      ),
+        updateClusterMetadata.decode.bind(updateClusterMetadata)),
       partialUpdateCluster: new this._gaxModule.LongrunningDescriptor(
         this.operationsClient,
         partialUpdateClusterResponse.decode.bind(partialUpdateClusterResponse),
-        partialUpdateClusterMetadata.decode.bind(partialUpdateClusterMetadata)
-      ),
+        partialUpdateClusterMetadata.decode.bind(partialUpdateClusterMetadata)),
       updateAppProfile: new this._gaxModule.LongrunningDescriptor(
         this.operationsClient,
         updateAppProfileResponse.decode.bind(updateAppProfileResponse),
-        updateAppProfileMetadata.decode.bind(updateAppProfileMetadata)
-      ),
+        updateAppProfileMetadata.decode.bind(updateAppProfileMetadata))
     };
 
     // Put together the default options sent with requests.
     this._defaults = this._gaxGrpc.constructSettings(
-      'google.bigtable.admin.v2.BigtableInstanceAdmin',
-      gapicConfig as gax.ClientConfig,
-      opts.clientConfig || {},
-      {'x-goog-api-client': clientHeader.join(' ')}
-    );
+        'google.bigtable.admin.v2.BigtableInstanceAdmin', gapicConfig as gax.ClientConfig,
+        opts.clientConfig || {}, {'x-goog-api-client': clientHeader.join(' ')});
 
     // Set up a dictionary of "inner API calls"; the core implementation
     // of calling the API is handled in `google-gax`, with this code
@@ -332,55 +295,28 @@ export class BigtableInstanceAdminClient {
     // Put together the "service stub" for
     // google.bigtable.admin.v2.BigtableInstanceAdmin.
     this.bigtableInstanceAdminStub = this._gaxGrpc.createStub(
-      this._opts.fallback
-        ? (this._protos as protobuf.Root).lookupService(
-            'google.bigtable.admin.v2.BigtableInstanceAdmin'
-          )
-        : // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        this._opts.fallback ?
+          (this._protos as protobuf.Root).lookupService('google.bigtable.admin.v2.BigtableInstanceAdmin') :
+          // eslint-disable-next-line @typescript-eslint/no-explicit-any
           (this._protos as any).google.bigtable.admin.v2.BigtableInstanceAdmin,
-      this._opts,
-      this._providedCustomServicePath
-    ) as Promise<{[method: string]: Function}>;
+        this._opts, this._providedCustomServicePath) as Promise<{[method: string]: Function}>;
 
     // Iterate over each of the methods that the service provides
     // and create an API call method for each.
-    const bigtableInstanceAdminStubMethods = [
-      'createInstance',
-      'getInstance',
-      'listInstances',
-      'updateInstance',
-      'partialUpdateInstance',
-      'deleteInstance',
-      'createCluster',
-      'getCluster',
-      'listClusters',
-      'updateCluster',
-      'partialUpdateCluster',
-      'deleteCluster',
-      'createAppProfile',
-      'getAppProfile',
-      'listAppProfiles',
-      'updateAppProfile',
-      'deleteAppProfile',
-      'getIamPolicy',
-      'setIamPolicy',
-      'testIamPermissions',
-      'listHotTablets',
-    ];
+    const bigtableInstanceAdminStubMethods =
+        ['createInstance', 'getInstance', 'listInstances', 'updateInstance', 'partialUpdateInstance', 'deleteInstance', 'createCluster', 'getCluster', 'listClusters', 'updateCluster', 'partialUpdateCluster', 'deleteCluster', 'createAppProfile', 'getAppProfile', 'listAppProfiles', 'updateAppProfile', 'deleteAppProfile', 'getIamPolicy', 'setIamPolicy', 'testIamPermissions', 'listHotTablets'];
     for (const methodName of bigtableInstanceAdminStubMethods) {
       const callPromise = this.bigtableInstanceAdminStub.then(
-        stub =>
-          (...args: Array<{}>) => {
-            if (this._terminated) {
-              return Promise.reject('The client has already been closed.');
-            }
-            const func = stub[methodName];
-            return func.apply(stub, args);
-          },
-        (err: Error | null | undefined) => () => {
+        stub => (...args: Array<{}>) => {
+          if (this._terminated) {
+            return Promise.reject('The client has already been closed.');
+          }
+          const func = stub[methodName];
+          return func.apply(stub, args);
+        },
+        (err: Error|null|undefined) => () => {
           throw err;
-        }
-      );
+        });
 
       const descriptor =
         this.descriptors.page[methodName] ||
@@ -436,7 +372,7 @@ export class BigtableInstanceAdminClient {
       'https://www.googleapis.com/auth/cloud-bigtable.admin',
       'https://www.googleapis.com/auth/cloud-bigtable.admin.cluster',
       'https://www.googleapis.com/auth/cloud-platform',
-      'https://www.googleapis.com/auth/cloud-platform.read-only',
+      'https://www.googleapis.com/auth/cloud-platform.read-only'
     ];
   }
 
@@ -446,9 +382,8 @@ export class BigtableInstanceAdminClient {
    * Return the project ID used by this class.
    * @returns {Promise} A promise that resolves to string containing the project ID.
    */
-  getProjectId(
-    callback?: Callback<string, undefined, undefined>
-  ): Promise<string> | void {
+  getProjectId(callback?: Callback<string, undefined, undefined>):
+      Promise<string>|void {
     if (callback) {
       this.auth.getProjectId(callback);
       return;
@@ -459,2252 +394,1769 @@ export class BigtableInstanceAdminClient {
   // -------------------
   // -- Service calls --
   // -------------------
-  /**
-   * Gets information about an instance.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the requested instance. Values are of the form
-   *   `projects/{project}/instances/{instance}`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Instance]{@link google.bigtable.admin.v2.Instance}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.get_instance.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_GetInstance_async
-   */
+/**
+ * Gets information about an instance.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the requested instance. Values are of the form
+ *   `projects/{project}/instances/{instance}`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Instance]{@link google.bigtable.admin.v2.Instance}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.get_instance.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_GetInstance_async
+ */
   getInstance(
-    request?: protos.google.bigtable.admin.v2.IGetInstanceRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IInstance,
-      protos.google.bigtable.admin.v2.IGetInstanceRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IGetInstanceRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.IInstance,
+        protos.google.bigtable.admin.v2.IGetInstanceRequest|undefined, {}|undefined
+      ]>;
   getInstance(
-    request: protos.google.bigtable.admin.v2.IGetInstanceRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IInstance,
-      protos.google.bigtable.admin.v2.IGetInstanceRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGetInstanceRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IInstance,
+          protos.google.bigtable.admin.v2.IGetInstanceRequest|null|undefined,
+          {}|null|undefined>): void;
   getInstance(
-    request: protos.google.bigtable.admin.v2.IGetInstanceRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IInstance,
-      protos.google.bigtable.admin.v2.IGetInstanceRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGetInstanceRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IInstance,
+          protos.google.bigtable.admin.v2.IGetInstanceRequest|null|undefined,
+          {}|null|undefined>): void;
   getInstance(
-    request?: protos.google.bigtable.admin.v2.IGetInstanceRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IGetInstanceRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.IInstance,
-          | protos.google.bigtable.admin.v2.IGetInstanceRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.IInstance,
-      protos.google.bigtable.admin.v2.IGetInstanceRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IInstance,
-      protos.google.bigtable.admin.v2.IGetInstanceRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IGetInstanceRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.IInstance,
+          protos.google.bigtable.admin.v2.IGetInstanceRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.IInstance,
+        protos.google.bigtable.admin.v2.IGetInstanceRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.getInstance(request, options, callback);
   }
-  /**
-   * Lists information about instances in a project.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the project for which a list of instances is requested.
-   *   Values are of the form `projects/{project}`.
-   * @param {string} request.pageToken
-   *   DEPRECATED: This field is unused and ignored.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [ListInstancesResponse]{@link google.bigtable.admin.v2.ListInstancesResponse}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.list_instances.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_ListInstances_async
-   */
+/**
+ * Lists information about instances in a project.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the project for which a list of instances is requested.
+ *   Values are of the form `projects/{project}`.
+ * @param {string} request.pageToken
+ *   DEPRECATED: This field is unused and ignored.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [ListInstancesResponse]{@link google.bigtable.admin.v2.ListInstancesResponse}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.list_instances.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_ListInstances_async
+ */
   listInstances(
-    request?: protos.google.bigtable.admin.v2.IListInstancesRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IListInstancesResponse,
-      protos.google.bigtable.admin.v2.IListInstancesRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IListInstancesRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.IListInstancesResponse,
+        protos.google.bigtable.admin.v2.IListInstancesRequest|undefined, {}|undefined
+      ]>;
   listInstances(
-    request: protos.google.bigtable.admin.v2.IListInstancesRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IListInstancesResponse,
-      protos.google.bigtable.admin.v2.IListInstancesRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListInstancesRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IListInstancesResponse,
+          protos.google.bigtable.admin.v2.IListInstancesRequest|null|undefined,
+          {}|null|undefined>): void;
   listInstances(
-    request: protos.google.bigtable.admin.v2.IListInstancesRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IListInstancesResponse,
-      protos.google.bigtable.admin.v2.IListInstancesRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListInstancesRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IListInstancesResponse,
+          protos.google.bigtable.admin.v2.IListInstancesRequest|null|undefined,
+          {}|null|undefined>): void;
   listInstances(
-    request?: protos.google.bigtable.admin.v2.IListInstancesRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IListInstancesRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.IListInstancesResponse,
-          | protos.google.bigtable.admin.v2.IListInstancesRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.IListInstancesResponse,
-      protos.google.bigtable.admin.v2.IListInstancesRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IListInstancesResponse,
-      protos.google.bigtable.admin.v2.IListInstancesRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IListInstancesRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.IListInstancesResponse,
+          protos.google.bigtable.admin.v2.IListInstancesRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.IListInstancesResponse,
+        protos.google.bigtable.admin.v2.IListInstancesRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
     return this.innerApiCalls.listInstances(request, options, callback);
   }
-  /**
-   * Updates an instance within a project. This method updates only the display
-   * name and type for an Instance. To update other Instance properties, such as
-   * labels, use PartialUpdateInstance.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   The unique name of the instance. Values are of the form
-   *   `projects/{project}/instances/{@link a-z0-9\\-|a-z}+[a-z0-9]`.
-   * @param {string} request.displayName
-   *   Required. The descriptive name for this instance as it appears in UIs.
-   *   Can be changed at any time, but should be kept globally unique
-   *   to avoid confusion.
-   * @param {google.bigtable.admin.v2.Instance.State} request.state
-   *   (`OutputOnly`)
-   *   The current state of the instance.
-   * @param {google.bigtable.admin.v2.Instance.Type} request.type
-   *   The type of the instance. Defaults to `PRODUCTION`.
-   * @param {number[]} request.labels
-   *   Labels are a flexible and lightweight mechanism for organizing cloud
-   *   resources into groups that reflect a customer's organizational needs and
-   *   deployment strategies. They can be used to filter resources and aggregate
-   *   metrics.
-   *
-   *   * Label keys must be between 1 and 63 characters long and must conform to
-   *     the regular expression: `{@link \p{Ll}\p{Lo}\p{N}_-|\p{Ll}\p{Lo}}{0,62}`.
-   *   * Label values must be between 0 and 63 characters long and must conform to
-   *     the regular expression: `[\p{Ll}\p{Lo}\p{N}_-]{0,63}`.
-   *   * No more than 64 labels can be associated with a given resource.
-   *   * Keys and values must both be under 128 bytes.
-   * @param {google.protobuf.Timestamp} request.createTime
-   *   Output only. A server-assigned timestamp representing when this Instance was created.
-   *   For instances created before this field was added (August 2021), this value
-   *   is `seconds: 0, nanos: 1`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Instance]{@link google.bigtable.admin.v2.Instance}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.update_instance.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_UpdateInstance_async
-   */
+/**
+ * Updates an instance within a project. This method updates only the display
+ * name and type for an Instance. To update other Instance properties, such as
+ * labels, use PartialUpdateInstance.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   The unique name of the instance. Values are of the form
+ *   `projects/{project}/instances/{@link a-z0-9\\-|a-z}+[a-z0-9]`.
+ * @param {string} request.displayName
+ *   Required. The descriptive name for this instance as it appears in UIs.
+ *   Can be changed at any time, but should be kept globally unique
+ *   to avoid confusion.
+ * @param {google.bigtable.admin.v2.Instance.State} request.state
+ *   Output only. The current state of the instance.
+ * @param {google.bigtable.admin.v2.Instance.Type} request.type
+ *   Required. The type of the instance. Defaults to `PRODUCTION`.
+ * @param {number[]} request.labels
+ *   Required. Labels are a flexible and lightweight mechanism for organizing
+ *   cloud resources into groups that reflect a customer's organizational needs
+ *   and deployment strategies. They can be used to filter resources and
+ *   aggregate metrics.
+ *
+ *   * Label keys must be between 1 and 63 characters long and must conform to
+ *     the regular expression: `{@link \p{Ll}\p{Lo}\p{N}_-|\p{Ll}\p{Lo}}{0,62}`.
+ *   * Label values must be between 0 and 63 characters long and must conform to
+ *     the regular expression: `[\p{Ll}\p{Lo}\p{N}_-]{0,63}`.
+ *   * No more than 64 labels can be associated with a given resource.
+ *   * Keys and values must both be under 128 bytes.
+ * @param {google.protobuf.Timestamp} request.createTime
+ *   Output only. A server-assigned timestamp representing when this Instance
+ *   was created. For instances created before this field was added (August
+ *   2021), this value is `seconds: 0, nanos: 1`.
+ * @param {boolean} request.satisfiesPzs
+ *   Output only. Reserved for future use.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Instance]{@link google.bigtable.admin.v2.Instance}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.update_instance.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_UpdateInstance_async
+ */
   updateInstance(
-    request?: protos.google.bigtable.admin.v2.IInstance,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IInstance,
-      protos.google.bigtable.admin.v2.IInstance | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IInstance,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.IInstance,
+        protos.google.bigtable.admin.v2.IInstance|undefined, {}|undefined
+      ]>;
   updateInstance(
-    request: protos.google.bigtable.admin.v2.IInstance,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IInstance,
-      protos.google.bigtable.admin.v2.IInstance | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IInstance,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IInstance,
+          protos.google.bigtable.admin.v2.IInstance|null|undefined,
+          {}|null|undefined>): void;
   updateInstance(
-    request: protos.google.bigtable.admin.v2.IInstance,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IInstance,
-      protos.google.bigtable.admin.v2.IInstance | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IInstance,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IInstance,
+          protos.google.bigtable.admin.v2.IInstance|null|undefined,
+          {}|null|undefined>): void;
   updateInstance(
-    request?: protos.google.bigtable.admin.v2.IInstance,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IInstance,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.IInstance,
-          protos.google.bigtable.admin.v2.IInstance | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.IInstance,
-      protos.google.bigtable.admin.v2.IInstance | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IInstance,
-      protos.google.bigtable.admin.v2.IInstance | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IInstance|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.IInstance,
+          protos.google.bigtable.admin.v2.IInstance|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.IInstance,
+        protos.google.bigtable.admin.v2.IInstance|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.updateInstance(request, options, callback);
   }
-  /**
-   * Delete an instance from a project.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the instance to be deleted.
-   *   Values are of the form `projects/{project}/instances/{instance}`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.delete_instance.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_DeleteInstance_async
-   */
+/**
+ * Delete an instance from a project.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the instance to be deleted.
+ *   Values are of the form `projects/{project}/instances/{instance}`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.delete_instance.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_DeleteInstance_async
+ */
   deleteInstance(
-    request?: protos.google.bigtable.admin.v2.IDeleteInstanceRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteInstanceRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IDeleteInstanceRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDeleteInstanceRequest|undefined, {}|undefined
+      ]>;
   deleteInstance(
-    request: protos.google.bigtable.admin.v2.IDeleteInstanceRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteInstanceRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDeleteInstanceRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteInstanceRequest|null|undefined,
+          {}|null|undefined>): void;
   deleteInstance(
-    request: protos.google.bigtable.admin.v2.IDeleteInstanceRequest,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteInstanceRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDeleteInstanceRequest,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteInstanceRequest|null|undefined,
+          {}|null|undefined>): void;
   deleteInstance(
-    request?: protos.google.bigtable.admin.v2.IDeleteInstanceRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IDeleteInstanceRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.protobuf.IEmpty,
-          | protos.google.bigtable.admin.v2.IDeleteInstanceRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteInstanceRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteInstanceRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IDeleteInstanceRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteInstanceRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDeleteInstanceRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.deleteInstance(request, options, callback);
   }
-  /**
-   * Gets information about a cluster.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the requested cluster. Values are of the form
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Cluster]{@link google.bigtable.admin.v2.Cluster}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.get_cluster.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_GetCluster_async
-   */
+/**
+ * Gets information about a cluster.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the requested cluster. Values are of the form
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Cluster]{@link google.bigtable.admin.v2.Cluster}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.get_cluster.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_GetCluster_async
+ */
   getCluster(
-    request?: protos.google.bigtable.admin.v2.IGetClusterRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ICluster,
-      protos.google.bigtable.admin.v2.IGetClusterRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IGetClusterRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.ICluster,
+        protos.google.bigtable.admin.v2.IGetClusterRequest|undefined, {}|undefined
+      ]>;
   getCluster(
-    request: protos.google.bigtable.admin.v2.IGetClusterRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.ICluster,
-      protos.google.bigtable.admin.v2.IGetClusterRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGetClusterRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.ICluster,
+          protos.google.bigtable.admin.v2.IGetClusterRequest|null|undefined,
+          {}|null|undefined>): void;
   getCluster(
-    request: protos.google.bigtable.admin.v2.IGetClusterRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.ICluster,
-      protos.google.bigtable.admin.v2.IGetClusterRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGetClusterRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.ICluster,
+          protos.google.bigtable.admin.v2.IGetClusterRequest|null|undefined,
+          {}|null|undefined>): void;
   getCluster(
-    request?: protos.google.bigtable.admin.v2.IGetClusterRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IGetClusterRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.ICluster,
-          protos.google.bigtable.admin.v2.IGetClusterRequest | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.ICluster,
-      protos.google.bigtable.admin.v2.IGetClusterRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ICluster,
-      protos.google.bigtable.admin.v2.IGetClusterRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IGetClusterRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.ICluster,
+          protos.google.bigtable.admin.v2.IGetClusterRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.ICluster,
+        protos.google.bigtable.admin.v2.IGetClusterRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.getCluster(request, options, callback);
   }
-  /**
-   * Lists information about clusters in an instance.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the instance for which a list of clusters is requested.
-   *   Values are of the form `projects/{project}/instances/{instance}`.
-   *   Use `{instance} = '-'` to list Clusters for all Instances in a project,
-   *   e.g., `projects/myproject/instances/-`.
-   * @param {string} request.pageToken
-   *   DEPRECATED: This field is unused and ignored.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [ListClustersResponse]{@link google.bigtable.admin.v2.ListClustersResponse}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.list_clusters.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_ListClusters_async
-   */
+/**
+ * Lists information about clusters in an instance.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the instance for which a list of clusters is requested.
+ *   Values are of the form `projects/{project}/instances/{instance}`.
+ *   Use `{instance} = '-'` to list Clusters for all Instances in a project,
+ *   e.g., `projects/myproject/instances/-`.
+ * @param {string} request.pageToken
+ *   DEPRECATED: This field is unused and ignored.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [ListClustersResponse]{@link google.bigtable.admin.v2.ListClustersResponse}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.list_clusters.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_ListClusters_async
+ */
   listClusters(
-    request?: protos.google.bigtable.admin.v2.IListClustersRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IListClustersResponse,
-      protos.google.bigtable.admin.v2.IListClustersRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IListClustersRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.IListClustersResponse,
+        protos.google.bigtable.admin.v2.IListClustersRequest|undefined, {}|undefined
+      ]>;
   listClusters(
-    request: protos.google.bigtable.admin.v2.IListClustersRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IListClustersResponse,
-      protos.google.bigtable.admin.v2.IListClustersRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListClustersRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IListClustersResponse,
+          protos.google.bigtable.admin.v2.IListClustersRequest|null|undefined,
+          {}|null|undefined>): void;
   listClusters(
-    request: protos.google.bigtable.admin.v2.IListClustersRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IListClustersResponse,
-      protos.google.bigtable.admin.v2.IListClustersRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListClustersRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IListClustersResponse,
+          protos.google.bigtable.admin.v2.IListClustersRequest|null|undefined,
+          {}|null|undefined>): void;
   listClusters(
-    request?: protos.google.bigtable.admin.v2.IListClustersRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IListClustersRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.IListClustersResponse,
-          | protos.google.bigtable.admin.v2.IListClustersRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.IListClustersResponse,
-      protos.google.bigtable.admin.v2.IListClustersRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IListClustersResponse,
-      protos.google.bigtable.admin.v2.IListClustersRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IListClustersRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.IListClustersResponse,
+          protos.google.bigtable.admin.v2.IListClustersRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.IListClustersResponse,
+        protos.google.bigtable.admin.v2.IListClustersRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
     return this.innerApiCalls.listClusters(request, options, callback);
   }
-  /**
-   * Deletes a cluster from an instance.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the cluster to be deleted. Values are of the form
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.delete_cluster.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_DeleteCluster_async
-   */
+/**
+ * Deletes a cluster from an instance.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the cluster to be deleted. Values are of the form
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.delete_cluster.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_DeleteCluster_async
+ */
   deleteCluster(
-    request?: protos.google.bigtable.admin.v2.IDeleteClusterRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteClusterRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IDeleteClusterRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDeleteClusterRequest|undefined, {}|undefined
+      ]>;
   deleteCluster(
-    request: protos.google.bigtable.admin.v2.IDeleteClusterRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteClusterRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDeleteClusterRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteClusterRequest|null|undefined,
+          {}|null|undefined>): void;
   deleteCluster(
-    request: protos.google.bigtable.admin.v2.IDeleteClusterRequest,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteClusterRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDeleteClusterRequest,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteClusterRequest|null|undefined,
+          {}|null|undefined>): void;
   deleteCluster(
-    request?: protos.google.bigtable.admin.v2.IDeleteClusterRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IDeleteClusterRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.protobuf.IEmpty,
-          | protos.google.bigtable.admin.v2.IDeleteClusterRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteClusterRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteClusterRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IDeleteClusterRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteClusterRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDeleteClusterRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.deleteCluster(request, options, callback);
   }
-  /**
-   * Creates an app profile within an instance.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the instance in which to create the new app profile.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}`.
-   * @param {string} request.appProfileId
-   *   Required. The ID to be used when referring to the new app profile within its
-   *   instance, e.g., just `myprofile` rather than
-   *   `projects/myproject/instances/myinstance/appProfiles/myprofile`.
-   * @param {google.bigtable.admin.v2.AppProfile} request.appProfile
-   *   Required. The app profile to be created.
-   *   Fields marked `OutputOnly` will be ignored.
-   * @param {boolean} request.ignoreWarnings
-   *   If true, ignore safety checks when creating the app profile.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [AppProfile]{@link google.bigtable.admin.v2.AppProfile}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.create_app_profile.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_CreateAppProfile_async
-   */
+/**
+ * Creates an app profile within an instance.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the instance in which to create the new app profile.
+ *   Values are of the form
+ *   `projects/{project}/instances/{instance}`.
+ * @param {string} request.appProfileId
+ *   Required. The ID to be used when referring to the new app profile within its
+ *   instance, e.g., just `myprofile` rather than
+ *   `projects/myproject/instances/myinstance/appProfiles/myprofile`.
+ * @param {google.bigtable.admin.v2.AppProfile} request.appProfile
+ *   Required. The app profile to be created.
+ *   Fields marked `OutputOnly` will be ignored.
+ * @param {boolean} request.ignoreWarnings
+ *   If true, ignore safety checks when creating the app profile.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [AppProfile]{@link google.bigtable.admin.v2.AppProfile}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.create_app_profile.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_CreateAppProfile_async
+ */
   createAppProfile(
-    request?: protos.google.bigtable.admin.v2.ICreateAppProfileRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IAppProfile,
-      protos.google.bigtable.admin.v2.ICreateAppProfileRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.ICreateAppProfileRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.IAppProfile,
+        protos.google.bigtable.admin.v2.ICreateAppProfileRequest|undefined, {}|undefined
+      ]>;
   createAppProfile(
-    request: protos.google.bigtable.admin.v2.ICreateAppProfileRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IAppProfile,
-      | protos.google.bigtable.admin.v2.ICreateAppProfileRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICreateAppProfileRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IAppProfile,
+          protos.google.bigtable.admin.v2.ICreateAppProfileRequest|null|undefined,
+          {}|null|undefined>): void;
   createAppProfile(
-    request: protos.google.bigtable.admin.v2.ICreateAppProfileRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IAppProfile,
-      | protos.google.bigtable.admin.v2.ICreateAppProfileRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICreateAppProfileRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IAppProfile,
+          protos.google.bigtable.admin.v2.ICreateAppProfileRequest|null|undefined,
+          {}|null|undefined>): void;
   createAppProfile(
-    request?: protos.google.bigtable.admin.v2.ICreateAppProfileRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.ICreateAppProfileRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.IAppProfile,
-          | protos.google.bigtable.admin.v2.ICreateAppProfileRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.IAppProfile,
-      | protos.google.bigtable.admin.v2.ICreateAppProfileRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IAppProfile,
-      protos.google.bigtable.admin.v2.ICreateAppProfileRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.ICreateAppProfileRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.IAppProfile,
+          protos.google.bigtable.admin.v2.ICreateAppProfileRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.IAppProfile,
+        protos.google.bigtable.admin.v2.ICreateAppProfileRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
     return this.innerApiCalls.createAppProfile(request, options, callback);
   }
-  /**
-   * Gets information about an app profile.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the requested app profile. Values are of the form
-   *   `projects/{project}/instances/{instance}/appProfiles/{app_profile}`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [AppProfile]{@link google.bigtable.admin.v2.AppProfile}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.get_app_profile.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_GetAppProfile_async
-   */
+/**
+ * Gets information about an app profile.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the requested app profile. Values are of the form
+ *   `projects/{project}/instances/{instance}/appProfiles/{app_profile}`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [AppProfile]{@link google.bigtable.admin.v2.AppProfile}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.get_app_profile.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_GetAppProfile_async
+ */
   getAppProfile(
-    request?: protos.google.bigtable.admin.v2.IGetAppProfileRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IAppProfile,
-      protos.google.bigtable.admin.v2.IGetAppProfileRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IGetAppProfileRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.IAppProfile,
+        protos.google.bigtable.admin.v2.IGetAppProfileRequest|undefined, {}|undefined
+      ]>;
   getAppProfile(
-    request: protos.google.bigtable.admin.v2.IGetAppProfileRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IAppProfile,
-      protos.google.bigtable.admin.v2.IGetAppProfileRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGetAppProfileRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IAppProfile,
+          protos.google.bigtable.admin.v2.IGetAppProfileRequest|null|undefined,
+          {}|null|undefined>): void;
   getAppProfile(
-    request: protos.google.bigtable.admin.v2.IGetAppProfileRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IAppProfile,
-      protos.google.bigtable.admin.v2.IGetAppProfileRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGetAppProfileRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IAppProfile,
+          protos.google.bigtable.admin.v2.IGetAppProfileRequest|null|undefined,
+          {}|null|undefined>): void;
   getAppProfile(
-    request?: protos.google.bigtable.admin.v2.IGetAppProfileRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IGetAppProfileRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.IAppProfile,
-          | protos.google.bigtable.admin.v2.IGetAppProfileRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.IAppProfile,
-      protos.google.bigtable.admin.v2.IGetAppProfileRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IAppProfile,
-      protos.google.bigtable.admin.v2.IGetAppProfileRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IGetAppProfileRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.IAppProfile,
+          protos.google.bigtable.admin.v2.IGetAppProfileRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.IAppProfile,
+        protos.google.bigtable.admin.v2.IGetAppProfileRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.getAppProfile(request, options, callback);
   }
-  /**
-   * Deletes an app profile from an instance.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the app profile to be deleted. Values are of the form
-   *   `projects/{project}/instances/{instance}/appProfiles/{app_profile}`.
-   * @param {boolean} request.ignoreWarnings
-   *   Required. If true, ignore safety checks when deleting the app profile.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.delete_app_profile.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_DeleteAppProfile_async
-   */
+/**
+ * Deletes an app profile from an instance.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the app profile to be deleted. Values are of the form
+ *   `projects/{project}/instances/{instance}/appProfiles/{app_profile}`.
+ * @param {boolean} request.ignoreWarnings
+ *   Required. If true, ignore safety checks when deleting the app profile.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.delete_app_profile.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_DeleteAppProfile_async
+ */
   deleteAppProfile(
-    request?: protos.google.bigtable.admin.v2.IDeleteAppProfileRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteAppProfileRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IDeleteAppProfileRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDeleteAppProfileRequest|undefined, {}|undefined
+      ]>;
   deleteAppProfile(
-    request: protos.google.bigtable.admin.v2.IDeleteAppProfileRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      | protos.google.bigtable.admin.v2.IDeleteAppProfileRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDeleteAppProfileRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteAppProfileRequest|null|undefined,
+          {}|null|undefined>): void;
   deleteAppProfile(
-    request: protos.google.bigtable.admin.v2.IDeleteAppProfileRequest,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      | protos.google.bigtable.admin.v2.IDeleteAppProfileRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDeleteAppProfileRequest,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteAppProfileRequest|null|undefined,
+          {}|null|undefined>): void;
   deleteAppProfile(
-    request?: protos.google.bigtable.admin.v2.IDeleteAppProfileRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IDeleteAppProfileRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.protobuf.IEmpty,
-          | protos.google.bigtable.admin.v2.IDeleteAppProfileRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.protobuf.IEmpty,
-      | protos.google.bigtable.admin.v2.IDeleteAppProfileRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteAppProfileRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IDeleteAppProfileRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteAppProfileRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDeleteAppProfileRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.deleteAppProfile(request, options, callback);
   }
-  /**
-   * Gets the access control policy for an instance resource. Returns an empty
-   * policy if an instance exists but does not have a policy set.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.resource
-   *   REQUIRED: The resource for which the policy is being requested.
-   *   See the operation documentation for the appropriate value for this field.
-   * @param {google.iam.v1.GetPolicyOptions} request.options
-   *   OPTIONAL: A `GetPolicyOptions` object for specifying options to
-   *   `GetIamPolicy`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Policy]{@link google.iam.v1.Policy}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.get_iam_policy.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_GetIamPolicy_async
-   */
+/**
+ * Gets the access control policy for an instance resource. Returns an empty
+ * policy if an instance exists but does not have a policy set.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.resource
+ *   REQUIRED: The resource for which the policy is being requested.
+ *   See the operation documentation for the appropriate value for this field.
+ * @param {google.iam.v1.GetPolicyOptions} request.options
+ *   OPTIONAL: A `GetPolicyOptions` object for specifying options to
+ *   `GetIamPolicy`. This field is only used by Cloud IAM.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Policy]{@link google.iam.v1.Policy}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.get_iam_policy.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_GetIamPolicy_async
+ */
   getIamPolicy(
-    request?: protos.google.iam.v1.IGetIamPolicyRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.IGetIamPolicyRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.iam.v1.IGetIamPolicyRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.iam.v1.IPolicy,
+        protos.google.iam.v1.IGetIamPolicyRequest|undefined, {}|undefined
+      ]>;
   getIamPolicy(
-    request: protos.google.iam.v1.IGetIamPolicyRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.IGetIamPolicyRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.iam.v1.IGetIamPolicyRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.iam.v1.IPolicy,
+          protos.google.iam.v1.IGetIamPolicyRequest|null|undefined,
+          {}|null|undefined>): void;
   getIamPolicy(
-    request: protos.google.iam.v1.IGetIamPolicyRequest,
-    callback: Callback<
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.IGetIamPolicyRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.iam.v1.IGetIamPolicyRequest,
+      callback: Callback<
+          protos.google.iam.v1.IPolicy,
+          protos.google.iam.v1.IGetIamPolicyRequest|null|undefined,
+          {}|null|undefined>): void;
   getIamPolicy(
-    request?: protos.google.iam.v1.IGetIamPolicyRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.iam.v1.IGetIamPolicyRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.iam.v1.IPolicy,
-          protos.google.iam.v1.IGetIamPolicyRequest | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.IGetIamPolicyRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.IGetIamPolicyRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.iam.v1.IGetIamPolicyRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.iam.v1.IPolicy,
+          protos.google.iam.v1.IGetIamPolicyRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.iam.v1.IPolicy,
+        protos.google.iam.v1.IGetIamPolicyRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        resource: request.resource || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'resource': request.resource || '',
+    });
     this.initialize();
     return this.innerApiCalls.getIamPolicy(request, options, callback);
   }
-  /**
-   * Sets the access control policy on an instance resource. Replaces any
-   * existing policy.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.resource
-   *   REQUIRED: The resource for which the policy is being specified.
-   *   See the operation documentation for the appropriate value for this field.
-   * @param {google.iam.v1.Policy} request.policy
-   *   REQUIRED: The complete policy to be applied to the `resource`. The size of
-   *   the policy is limited to a few 10s of KB. An empty policy is a
-   *   valid policy but certain Cloud Platform services (such as Projects)
-   *   might reject them.
-   * @param {google.protobuf.FieldMask} request.updateMask
-   *   OPTIONAL: A FieldMask specifying which fields of the policy to modify. Only
-   *   the fields in the mask will be modified. If no mask is provided, the
-   *   following default mask is used:
-   *
-   *   `paths: "bindings, etag"`
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Policy]{@link google.iam.v1.Policy}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.set_iam_policy.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_SetIamPolicy_async
-   */
+/**
+ * Sets the access control policy on an instance resource. Replaces any
+ * existing policy.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.resource
+ *   REQUIRED: The resource for which the policy is being specified.
+ *   See the operation documentation for the appropriate value for this field.
+ * @param {google.iam.v1.Policy} request.policy
+ *   REQUIRED: The complete policy to be applied to the `resource`. The size of
+ *   the policy is limited to a few 10s of KB. An empty policy is a
+ *   valid policy but certain Cloud Platform services (such as Projects)
+ *   might reject them.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Policy]{@link google.iam.v1.Policy}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.set_iam_policy.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_SetIamPolicy_async
+ */
   setIamPolicy(
-    request?: protos.google.iam.v1.ISetIamPolicyRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.ISetIamPolicyRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.iam.v1.ISetIamPolicyRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.iam.v1.IPolicy,
+        protos.google.iam.v1.ISetIamPolicyRequest|undefined, {}|undefined
+      ]>;
   setIamPolicy(
-    request: protos.google.iam.v1.ISetIamPolicyRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.ISetIamPolicyRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.iam.v1.ISetIamPolicyRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.iam.v1.IPolicy,
+          protos.google.iam.v1.ISetIamPolicyRequest|null|undefined,
+          {}|null|undefined>): void;
   setIamPolicy(
-    request: protos.google.iam.v1.ISetIamPolicyRequest,
-    callback: Callback<
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.ISetIamPolicyRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.iam.v1.ISetIamPolicyRequest,
+      callback: Callback<
+          protos.google.iam.v1.IPolicy,
+          protos.google.iam.v1.ISetIamPolicyRequest|null|undefined,
+          {}|null|undefined>): void;
   setIamPolicy(
-    request?: protos.google.iam.v1.ISetIamPolicyRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.iam.v1.ISetIamPolicyRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.iam.v1.IPolicy,
-          protos.google.iam.v1.ISetIamPolicyRequest | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.ISetIamPolicyRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.ISetIamPolicyRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.iam.v1.ISetIamPolicyRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.iam.v1.IPolicy,
+          protos.google.iam.v1.ISetIamPolicyRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.iam.v1.IPolicy,
+        protos.google.iam.v1.ISetIamPolicyRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        resource: request.resource || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'resource': request.resource || '',
+    });
     this.initialize();
     return this.innerApiCalls.setIamPolicy(request, options, callback);
   }
-  /**
-   * Returns permissions that the caller has on the specified instance resource.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.resource
-   *   REQUIRED: The resource for which the policy detail is being requested.
-   *   See the operation documentation for the appropriate value for this field.
-   * @param {string[]} request.permissions
-   *   The set of permissions to check for the `resource`. Permissions with
-   *   wildcards (such as '*' or 'storage.*') are not allowed. For more
-   *   information see
-   *   [IAM Overview](https://cloud.google.com/iam/docs/overview#permissions).
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [TestIamPermissionsResponse]{@link google.iam.v1.TestIamPermissionsResponse}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.test_iam_permissions.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_TestIamPermissions_async
-   */
+/**
+ * Returns permissions that the caller has on the specified instance resource.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.resource
+ *   REQUIRED: The resource for which the policy detail is being requested.
+ *   See the operation documentation for the appropriate value for this field.
+ * @param {string[]} request.permissions
+ *   The set of permissions to check for the `resource`. Permissions with
+ *   wildcards (such as '*' or 'storage.*') are not allowed. For more
+ *   information see
+ *   [IAM Overview](https://cloud.google.com/iam/docs/overview#permissions).
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [TestIamPermissionsResponse]{@link google.iam.v1.TestIamPermissionsResponse}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.test_iam_permissions.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_TestIamPermissions_async
+ */
   testIamPermissions(
-    request?: protos.google.iam.v1.ITestIamPermissionsRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.iam.v1.ITestIamPermissionsResponse,
-      protos.google.iam.v1.ITestIamPermissionsRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.iam.v1.ITestIamPermissionsRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.iam.v1.ITestIamPermissionsResponse,
+        protos.google.iam.v1.ITestIamPermissionsRequest|undefined, {}|undefined
+      ]>;
   testIamPermissions(
-    request: protos.google.iam.v1.ITestIamPermissionsRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.iam.v1.ITestIamPermissionsResponse,
-      protos.google.iam.v1.ITestIamPermissionsRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.iam.v1.ITestIamPermissionsRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.iam.v1.ITestIamPermissionsResponse,
+          protos.google.iam.v1.ITestIamPermissionsRequest|null|undefined,
+          {}|null|undefined>): void;
   testIamPermissions(
-    request: protos.google.iam.v1.ITestIamPermissionsRequest,
-    callback: Callback<
-      protos.google.iam.v1.ITestIamPermissionsResponse,
-      protos.google.iam.v1.ITestIamPermissionsRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.iam.v1.ITestIamPermissionsRequest,
+      callback: Callback<
+          protos.google.iam.v1.ITestIamPermissionsResponse,
+          protos.google.iam.v1.ITestIamPermissionsRequest|null|undefined,
+          {}|null|undefined>): void;
   testIamPermissions(
-    request?: protos.google.iam.v1.ITestIamPermissionsRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.iam.v1.ITestIamPermissionsRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.iam.v1.ITestIamPermissionsResponse,
-          protos.google.iam.v1.ITestIamPermissionsRequest | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.iam.v1.ITestIamPermissionsResponse,
-      protos.google.iam.v1.ITestIamPermissionsRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.iam.v1.ITestIamPermissionsResponse,
-      protos.google.iam.v1.ITestIamPermissionsRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.iam.v1.ITestIamPermissionsRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.iam.v1.ITestIamPermissionsResponse,
+          protos.google.iam.v1.ITestIamPermissionsRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.iam.v1.ITestIamPermissionsResponse,
+        protos.google.iam.v1.ITestIamPermissionsRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        resource: request.resource || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'resource': request.resource || '',
+    });
     this.initialize();
     return this.innerApiCalls.testIamPermissions(request, options, callback);
   }
 
-  /**
-   * Create an instance within a project.
-   *
-   * Note that exactly one of Cluster.serve_nodes and
-   * Cluster.cluster_config.cluster_autoscaling_config can be set. If
-   * serve_nodes is set to non-zero, then the cluster is manually scaled. If
-   * cluster_config.cluster_autoscaling_config is non-empty, then autoscaling is
-   * enabled.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the project in which to create the new instance.
-   *   Values are of the form `projects/{project}`.
-   * @param {string} request.instanceId
-   *   Required. The ID to be used when referring to the new instance within its project,
-   *   e.g., just `myinstance` rather than
-   *   `projects/myproject/instances/myinstance`.
-   * @param {google.bigtable.admin.v2.Instance} request.instance
-   *   Required. The instance to create.
-   *   Fields marked `OutputOnly` must be left blank.
-   * @param {number[]} request.clusters
-   *   Required. The clusters to be created within the instance, mapped by desired
-   *   cluster ID, e.g., just `mycluster` rather than
-   *   `projects/myproject/instances/myinstance/clusters/mycluster`.
-   *   Fields marked `OutputOnly` must be left blank.
-   *   Currently, at most four clusters can be specified.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing
-   *   a long running operation. Its `promise()` method returns a promise
-   *   you can `await` for.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.create_instance.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_CreateInstance_async
-   */
+/**
+ * Create an instance within a project.
+ *
+ * Note that exactly one of Cluster.serve_nodes and
+ * Cluster.cluster_config.cluster_autoscaling_config can be set. If
+ * serve_nodes is set to non-zero, then the cluster is manually scaled. If
+ * cluster_config.cluster_autoscaling_config is non-empty, then autoscaling is
+ * enabled.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the project in which to create the new instance.
+ *   Values are of the form `projects/{project}`.
+ * @param {string} request.instanceId
+ *   Required. The ID to be used when referring to the new instance within its project,
+ *   e.g., just `myinstance` rather than
+ *   `projects/myproject/instances/myinstance`.
+ * @param {google.bigtable.admin.v2.Instance} request.instance
+ *   Required. The instance to create.
+ *   Fields marked `OutputOnly` must be left blank.
+ * @param {number[]} request.clusters
+ *   Required. The clusters to be created within the instance, mapped by desired
+ *   cluster ID, e.g., just `mycluster` rather than
+ *   `projects/myproject/instances/myinstance/clusters/mycluster`.
+ *   Fields marked `OutputOnly` must be left blank.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing
+ *   a long running operation. Its `promise()` method returns a promise
+ *   you can `await` for.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.create_instance.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_CreateInstance_async
+ */
   createInstance(
-    request?: protos.google.bigtable.admin.v2.ICreateInstanceRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.IInstance,
-        protos.google.bigtable.admin.v2.ICreateInstanceMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.ICreateInstanceRequest,
+      options?: CallOptions):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.ICreateInstanceMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>;
   createInstance(
-    request: protos.google.bigtable.admin.v2.ICreateInstanceRequest,
-    options: CallOptions,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.IInstance,
-        protos.google.bigtable.admin.v2.ICreateInstanceMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICreateInstanceRequest,
+      options: CallOptions,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.ICreateInstanceMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   createInstance(
-    request: protos.google.bigtable.admin.v2.ICreateInstanceRequest,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.IInstance,
-        protos.google.bigtable.admin.v2.ICreateInstanceMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICreateInstanceRequest,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.ICreateInstanceMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   createInstance(
-    request?: protos.google.bigtable.admin.v2.ICreateInstanceRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
-          LROperation<
-            protos.google.bigtable.admin.v2.IInstance,
-            protos.google.bigtable.admin.v2.ICreateInstanceMetadata
-          >,
-          protos.google.longrunning.IOperation | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.IInstance,
-        protos.google.bigtable.admin.v2.ICreateInstanceMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.IInstance,
-        protos.google.bigtable.admin.v2.ICreateInstanceMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  > | void {
+      request?: protos.google.bigtable.admin.v2.ICreateInstanceRequest,
+      optionsOrCallback?: CallOptions|Callback<
+          LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.ICreateInstanceMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.ICreateInstanceMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.ICreateInstanceMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
     return this.innerApiCalls.createInstance(request, options, callback);
   }
-  /**
-   * Check the status of the long running operation returned by `createInstance()`.
-   * @param {String} name
-   *   The operation name that will be passed.
-   * @returns {Promise} - The promise which resolves to an object.
-   *   The decoded operation object has result and metadata field to get information from.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.create_instance.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_CreateInstance_async
-   */
-  async checkCreateInstanceProgress(
-    name: string
-  ): Promise<
-    LROperation<
-      protos.google.bigtable.admin.v2.Instance,
-      protos.google.bigtable.admin.v2.CreateInstanceMetadata
-    >
-  > {
-    const request = new operationsProtos.google.longrunning.GetOperationRequest(
-      {name}
-    );
+/**
+ * Check the status of the long running operation returned by `createInstance()`.
+ * @param {String} name
+ *   The operation name that will be passed.
+ * @returns {Promise} - The promise which resolves to an object.
+ *   The decoded operation object has result and metadata field to get information from.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.create_instance.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_CreateInstance_async
+ */
+  async checkCreateInstanceProgress(name: string): Promise<LROperation<protos.google.bigtable.admin.v2.Instance, protos.google.bigtable.admin.v2.CreateInstanceMetadata>>{
+    const request = new operationsProtos.google.longrunning.GetOperationRequest({name});
     const [operation] = await this.operationsClient.getOperation(request);
-    const decodeOperation = new gax.Operation(
-      operation,
-      this.descriptors.longrunning.createInstance,
-      gax.createDefaultBackoffSettings()
-    );
-    return decodeOperation as LROperation<
-      protos.google.bigtable.admin.v2.Instance,
-      protos.google.bigtable.admin.v2.CreateInstanceMetadata
-    >;
+    const decodeOperation = new gax.Operation(operation, this.descriptors.longrunning.createInstance, gax.createDefaultBackoffSettings());
+    return decodeOperation as LROperation<protos.google.bigtable.admin.v2.Instance, protos.google.bigtable.admin.v2.CreateInstanceMetadata>;
   }
-  /**
-   * Partially updates an instance within a project. This method can modify all
-   * fields of an Instance and is the preferred way to update an Instance.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {google.bigtable.admin.v2.Instance} request.instance
-   *   Required. The Instance which will (partially) replace the current value.
-   * @param {google.protobuf.FieldMask} request.updateMask
-   *   Required. The subset of Instance fields which should be replaced.
-   *   Must be explicitly set.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing
-   *   a long running operation. Its `promise()` method returns a promise
-   *   you can `await` for.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.partial_update_instance.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_PartialUpdateInstance_async
-   */
+/**
+ * Partially updates an instance within a project. This method can modify all
+ * fields of an Instance and is the preferred way to update an Instance.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {google.bigtable.admin.v2.Instance} request.instance
+ *   Required. The Instance which will (partially) replace the current value.
+ * @param {google.protobuf.FieldMask} request.updateMask
+ *   Required. The subset of Instance fields which should be replaced.
+ *   Must be explicitly set.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing
+ *   a long running operation. Its `promise()` method returns a promise
+ *   you can `await` for.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.partial_update_instance.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_PartialUpdateInstance_async
+ */
   partialUpdateInstance(
-    request?: protos.google.bigtable.admin.v2.IPartialUpdateInstanceRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.IInstance,
-        protos.google.bigtable.admin.v2.IUpdateInstanceMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IPartialUpdateInstanceRequest,
+      options?: CallOptions):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.IUpdateInstanceMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>;
   partialUpdateInstance(
-    request: protos.google.bigtable.admin.v2.IPartialUpdateInstanceRequest,
-    options: CallOptions,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.IInstance,
-        protos.google.bigtable.admin.v2.IUpdateInstanceMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IPartialUpdateInstanceRequest,
+      options: CallOptions,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.IUpdateInstanceMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   partialUpdateInstance(
-    request: protos.google.bigtable.admin.v2.IPartialUpdateInstanceRequest,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.IInstance,
-        protos.google.bigtable.admin.v2.IUpdateInstanceMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IPartialUpdateInstanceRequest,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.IUpdateInstanceMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   partialUpdateInstance(
-    request?: protos.google.bigtable.admin.v2.IPartialUpdateInstanceRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
-          LROperation<
-            protos.google.bigtable.admin.v2.IInstance,
-            protos.google.bigtable.admin.v2.IUpdateInstanceMetadata
-          >,
-          protos.google.longrunning.IOperation | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.IInstance,
-        protos.google.bigtable.admin.v2.IUpdateInstanceMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.IInstance,
-        protos.google.bigtable.admin.v2.IUpdateInstanceMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  > | void {
+      request?: protos.google.bigtable.admin.v2.IPartialUpdateInstanceRequest,
+      optionsOrCallback?: CallOptions|Callback<
+          LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.IUpdateInstanceMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.IUpdateInstanceMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.IUpdateInstanceMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        'instance.name': request.instance!.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'instance.name': request.instance!.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.partialUpdateInstance(request, options, callback);
   }
-  /**
-   * Check the status of the long running operation returned by `partialUpdateInstance()`.
-   * @param {String} name
-   *   The operation name that will be passed.
-   * @returns {Promise} - The promise which resolves to an object.
-   *   The decoded operation object has result and metadata field to get information from.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.partial_update_instance.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_PartialUpdateInstance_async
-   */
-  async checkPartialUpdateInstanceProgress(
-    name: string
-  ): Promise<
-    LROperation<
-      protos.google.bigtable.admin.v2.Instance,
-      protos.google.bigtable.admin.v2.UpdateInstanceMetadata
-    >
-  > {
-    const request = new operationsProtos.google.longrunning.GetOperationRequest(
-      {name}
-    );
+/**
+ * Check the status of the long running operation returned by `partialUpdateInstance()`.
+ * @param {String} name
+ *   The operation name that will be passed.
+ * @returns {Promise} - The promise which resolves to an object.
+ *   The decoded operation object has result and metadata field to get information from.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.partial_update_instance.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_PartialUpdateInstance_async
+ */
+  async checkPartialUpdateInstanceProgress(name: string): Promise<LROperation<protos.google.bigtable.admin.v2.Instance, protos.google.bigtable.admin.v2.UpdateInstanceMetadata>>{
+    const request = new operationsProtos.google.longrunning.GetOperationRequest({name});
     const [operation] = await this.operationsClient.getOperation(request);
-    const decodeOperation = new gax.Operation(
-      operation,
-      this.descriptors.longrunning.partialUpdateInstance,
-      gax.createDefaultBackoffSettings()
-    );
-    return decodeOperation as LROperation<
-      protos.google.bigtable.admin.v2.Instance,
-      protos.google.bigtable.admin.v2.UpdateInstanceMetadata
-    >;
+    const decodeOperation = new gax.Operation(operation, this.descriptors.longrunning.partialUpdateInstance, gax.createDefaultBackoffSettings());
+    return decodeOperation as LROperation<protos.google.bigtable.admin.v2.Instance, protos.google.bigtable.admin.v2.UpdateInstanceMetadata>;
   }
-  /**
-   * Creates a cluster within an instance.
-   *
-   * Note that exactly one of Cluster.serve_nodes and
-   * Cluster.cluster_config.cluster_autoscaling_config can be set. If
-   * serve_nodes is set to non-zero, then the cluster is manually scaled. If
-   * cluster_config.cluster_autoscaling_config is non-empty, then autoscaling is
-   * enabled.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the instance in which to create the new cluster.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}`.
-   * @param {string} request.clusterId
-   *   Required. The ID to be used when referring to the new cluster within its instance,
-   *   e.g., just `mycluster` rather than
-   *   `projects/myproject/instances/myinstance/clusters/mycluster`.
-   * @param {google.bigtable.admin.v2.Cluster} request.cluster
-   *   Required. The cluster to be created.
-   *   Fields marked `OutputOnly` must be left blank.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing
-   *   a long running operation. Its `promise()` method returns a promise
-   *   you can `await` for.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.create_cluster.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_CreateCluster_async
-   */
+/**
+ * Creates a cluster within an instance.
+ *
+ * Note that exactly one of Cluster.serve_nodes and
+ * Cluster.cluster_config.cluster_autoscaling_config can be set. If
+ * serve_nodes is set to non-zero, then the cluster is manually scaled. If
+ * cluster_config.cluster_autoscaling_config is non-empty, then autoscaling is
+ * enabled.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the instance in which to create the new cluster.
+ *   Values are of the form
+ *   `projects/{project}/instances/{instance}`.
+ * @param {string} request.clusterId
+ *   Required. The ID to be used when referring to the new cluster within its instance,
+ *   e.g., just `mycluster` rather than
+ *   `projects/myproject/instances/myinstance/clusters/mycluster`.
+ * @param {google.bigtable.admin.v2.Cluster} request.cluster
+ *   Required. The cluster to be created.
+ *   Fields marked `OutputOnly` must be left blank.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing
+ *   a long running operation. Its `promise()` method returns a promise
+ *   you can `await` for.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.create_cluster.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_CreateCluster_async
+ */
   createCluster(
-    request?: protos.google.bigtable.admin.v2.ICreateClusterRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.ICreateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.ICreateClusterRequest,
+      options?: CallOptions):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.ICreateClusterMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>;
   createCluster(
-    request: protos.google.bigtable.admin.v2.ICreateClusterRequest,
-    options: CallOptions,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.ICreateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICreateClusterRequest,
+      options: CallOptions,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.ICreateClusterMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   createCluster(
-    request: protos.google.bigtable.admin.v2.ICreateClusterRequest,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.ICreateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICreateClusterRequest,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.ICreateClusterMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   createCluster(
-    request?: protos.google.bigtable.admin.v2.ICreateClusterRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
-          LROperation<
-            protos.google.bigtable.admin.v2.ICluster,
-            protos.google.bigtable.admin.v2.ICreateClusterMetadata
-          >,
-          protos.google.longrunning.IOperation | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.ICreateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.ICreateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  > | void {
+      request?: protos.google.bigtable.admin.v2.ICreateClusterRequest,
+      optionsOrCallback?: CallOptions|Callback<
+          LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.ICreateClusterMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.ICreateClusterMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.ICreateClusterMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
     return this.innerApiCalls.createCluster(request, options, callback);
   }
-  /**
-   * Check the status of the long running operation returned by `createCluster()`.
-   * @param {String} name
-   *   The operation name that will be passed.
-   * @returns {Promise} - The promise which resolves to an object.
-   *   The decoded operation object has result and metadata field to get information from.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.create_cluster.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_CreateCluster_async
-   */
-  async checkCreateClusterProgress(
-    name: string
-  ): Promise<
-    LROperation<
-      protos.google.bigtable.admin.v2.Cluster,
-      protos.google.bigtable.admin.v2.CreateClusterMetadata
-    >
-  > {
-    const request = new operationsProtos.google.longrunning.GetOperationRequest(
-      {name}
-    );
+/**
+ * Check the status of the long running operation returned by `createCluster()`.
+ * @param {String} name
+ *   The operation name that will be passed.
+ * @returns {Promise} - The promise which resolves to an object.
+ *   The decoded operation object has result and metadata field to get information from.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.create_cluster.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_CreateCluster_async
+ */
+  async checkCreateClusterProgress(name: string): Promise<LROperation<protos.google.bigtable.admin.v2.Cluster, protos.google.bigtable.admin.v2.CreateClusterMetadata>>{
+    const request = new operationsProtos.google.longrunning.GetOperationRequest({name});
     const [operation] = await this.operationsClient.getOperation(request);
-    const decodeOperation = new gax.Operation(
-      operation,
-      this.descriptors.longrunning.createCluster,
-      gax.createDefaultBackoffSettings()
-    );
-    return decodeOperation as LROperation<
-      protos.google.bigtable.admin.v2.Cluster,
-      protos.google.bigtable.admin.v2.CreateClusterMetadata
-    >;
+    const decodeOperation = new gax.Operation(operation, this.descriptors.longrunning.createCluster, gax.createDefaultBackoffSettings());
+    return decodeOperation as LROperation<protos.google.bigtable.admin.v2.Cluster, protos.google.bigtable.admin.v2.CreateClusterMetadata>;
   }
-  /**
-   * Updates a cluster within an instance.
-   *
-   * Note that UpdateCluster does not support updating
-   * cluster_config.cluster_autoscaling_config. In order to update it, you
-   * must use PartialUpdateCluster.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   The unique name of the cluster. Values are of the form
-   *   `projects/{project}/instances/{instance}/clusters/{@link -a-z0-9|a-z}*`.
-   * @param {string} request.location
-   *   Immutable. The location where this cluster's nodes and storage reside. For best
-   *   performance, clients should be located as close as possible to this
-   *   cluster. Currently only zones are supported, so values should be of the
-   *   form `projects/{project}/locations/{zone}`.
-   * @param {google.bigtable.admin.v2.Cluster.State} request.state
-   *   Output only. The current state of the cluster.
-   * @param {number} request.serveNodes
-   *   The number of nodes allocated to this cluster. More nodes enable higher
-   *   throughput and more consistent performance.
-   * @param {google.bigtable.admin.v2.Cluster.ClusterConfig} request.clusterConfig
-   *   Configuration for this cluster.
-   * @param {google.bigtable.admin.v2.StorageType} request.defaultStorageType
-   *   Immutable. The type of storage used by this cluster to serve its
-   *   parent instance's tables, unless explicitly overridden.
-   * @param {google.bigtable.admin.v2.Cluster.EncryptionConfig} request.encryptionConfig
-   *   Immutable. The encryption configuration for CMEK-protected clusters.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing
-   *   a long running operation. Its `promise()` method returns a promise
-   *   you can `await` for.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.update_cluster.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_UpdateCluster_async
-   */
+/**
+ * Updates a cluster within an instance.
+ *
+ * Note that UpdateCluster does not support updating
+ * cluster_config.cluster_autoscaling_config. In order to update it, you
+ * must use PartialUpdateCluster.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   The unique name of the cluster. Values are of the form
+ *   `projects/{project}/instances/{instance}/clusters/{@link -a-z0-9|a-z}*`.
+ * @param {string} request.location
+ *   Immutable. The location where this cluster's nodes and storage reside. For
+ *   best performance, clients should be located as close as possible to this
+ *   cluster. Currently only zones are supported, so values should be of the
+ *   form `projects/{project}/locations/{zone}`.
+ * @param {google.bigtable.admin.v2.Cluster.State} request.state
+ *   Output only. The current state of the cluster.
+ * @param {number} request.serveNodes
+ *   The number of nodes allocated to this cluster. More nodes enable higher
+ *   throughput and more consistent performance.
+ * @param {google.bigtable.admin.v2.Cluster.ClusterConfig} request.clusterConfig
+ *   Configuration for this cluster.
+ * @param {google.bigtable.admin.v2.StorageType} request.defaultStorageType
+ *   Immutable. The type of storage used by this cluster to serve its
+ *   parent instance's tables, unless explicitly overridden.
+ * @param {google.bigtable.admin.v2.Cluster.EncryptionConfig} request.encryptionConfig
+ *   Immutable. The encryption configuration for CMEK-protected clusters.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing
+ *   a long running operation. Its `promise()` method returns a promise
+ *   you can `await` for.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.update_cluster.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_UpdateCluster_async
+ */
   updateCluster(
-    request?: protos.google.bigtable.admin.v2.ICluster,
-    options?: CallOptions
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.IUpdateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.ICluster,
+      options?: CallOptions):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IUpdateClusterMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>;
   updateCluster(
-    request: protos.google.bigtable.admin.v2.ICluster,
-    options: CallOptions,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.IUpdateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICluster,
+      options: CallOptions,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IUpdateClusterMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   updateCluster(
-    request: protos.google.bigtable.admin.v2.ICluster,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.IUpdateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICluster,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IUpdateClusterMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   updateCluster(
-    request?: protos.google.bigtable.admin.v2.ICluster,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
-          LROperation<
-            protos.google.bigtable.admin.v2.ICluster,
-            protos.google.bigtable.admin.v2.IUpdateClusterMetadata
-          >,
-          protos.google.longrunning.IOperation | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.IUpdateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.IUpdateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  > | void {
+      request?: protos.google.bigtable.admin.v2.ICluster,
+      optionsOrCallback?: CallOptions|Callback<
+          LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IUpdateClusterMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IUpdateClusterMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IUpdateClusterMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.updateCluster(request, options, callback);
   }
-  /**
-   * Check the status of the long running operation returned by `updateCluster()`.
-   * @param {String} name
-   *   The operation name that will be passed.
-   * @returns {Promise} - The promise which resolves to an object.
-   *   The decoded operation object has result and metadata field to get information from.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.update_cluster.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_UpdateCluster_async
-   */
-  async checkUpdateClusterProgress(
-    name: string
-  ): Promise<
-    LROperation<
-      protos.google.bigtable.admin.v2.Cluster,
-      protos.google.bigtable.admin.v2.UpdateClusterMetadata
-    >
-  > {
-    const request = new operationsProtos.google.longrunning.GetOperationRequest(
-      {name}
-    );
+/**
+ * Check the status of the long running operation returned by `updateCluster()`.
+ * @param {String} name
+ *   The operation name that will be passed.
+ * @returns {Promise} - The promise which resolves to an object.
+ *   The decoded operation object has result and metadata field to get information from.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.update_cluster.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_UpdateCluster_async
+ */
+  async checkUpdateClusterProgress(name: string): Promise<LROperation<protos.google.bigtable.admin.v2.Cluster, protos.google.bigtable.admin.v2.UpdateClusterMetadata>>{
+    const request = new operationsProtos.google.longrunning.GetOperationRequest({name});
     const [operation] = await this.operationsClient.getOperation(request);
-    const decodeOperation = new gax.Operation(
-      operation,
-      this.descriptors.longrunning.updateCluster,
-      gax.createDefaultBackoffSettings()
-    );
-    return decodeOperation as LROperation<
-      protos.google.bigtable.admin.v2.Cluster,
-      protos.google.bigtable.admin.v2.UpdateClusterMetadata
-    >;
+    const decodeOperation = new gax.Operation(operation, this.descriptors.longrunning.updateCluster, gax.createDefaultBackoffSettings());
+    return decodeOperation as LROperation<protos.google.bigtable.admin.v2.Cluster, protos.google.bigtable.admin.v2.UpdateClusterMetadata>;
   }
-  /**
-   * Partially updates a cluster within a project. This method is the preferred
-   * way to update a Cluster.
-   *
-   * To enable and update autoscaling, set
-   * cluster_config.cluster_autoscaling_config. When autoscaling is enabled,
-   * serve_nodes is treated as an OUTPUT_ONLY field, meaning that updates to it
-   * are ignored. Note that an update cannot simultaneously set serve_nodes to
-   * non-zero and cluster_config.cluster_autoscaling_config to non-empty, and
-   * also specify both in the update_mask.
-   *
-   * To disable autoscaling, clear cluster_config.cluster_autoscaling_config,
-   * and explicitly set a serve_node count via the update_mask.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {google.bigtable.admin.v2.Cluster} request.cluster
-   *   Required. The Cluster which contains the partial updates to be applied, subject to
-   *   the update_mask.
-   * @param {google.protobuf.FieldMask} request.updateMask
-   *   Required. The subset of Cluster fields which should be replaced.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing
-   *   a long running operation. Its `promise()` method returns a promise
-   *   you can `await` for.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.partial_update_cluster.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_PartialUpdateCluster_async
-   */
+/**
+ * Partially updates a cluster within a project. This method is the preferred
+ * way to update a Cluster.
+ *
+ * To enable and update autoscaling, set
+ * cluster_config.cluster_autoscaling_config. When autoscaling is enabled,
+ * serve_nodes is treated as an OUTPUT_ONLY field, meaning that updates to it
+ * are ignored. Note that an update cannot simultaneously set serve_nodes to
+ * non-zero and cluster_config.cluster_autoscaling_config to non-empty, and
+ * also specify both in the update_mask.
+ *
+ * To disable autoscaling, clear cluster_config.cluster_autoscaling_config,
+ * and explicitly set a serve_node count via the update_mask.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {google.bigtable.admin.v2.Cluster} request.cluster
+ *   Required. The Cluster which contains the partial updates to be applied, subject to
+ *   the update_mask.
+ * @param {google.protobuf.FieldMask} request.updateMask
+ *   Required. The subset of Cluster fields which should be replaced.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing
+ *   a long running operation. Its `promise()` method returns a promise
+ *   you can `await` for.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.partial_update_cluster.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_PartialUpdateCluster_async
+ */
   partialUpdateCluster(
-    request?: protos.google.bigtable.admin.v2.IPartialUpdateClusterRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IPartialUpdateClusterRequest,
+      options?: CallOptions):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>;
   partialUpdateCluster(
-    request: protos.google.bigtable.admin.v2.IPartialUpdateClusterRequest,
-    options: CallOptions,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IPartialUpdateClusterRequest,
+      options: CallOptions,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   partialUpdateCluster(
-    request: protos.google.bigtable.admin.v2.IPartialUpdateClusterRequest,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IPartialUpdateClusterRequest,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   partialUpdateCluster(
-    request?: protos.google.bigtable.admin.v2.IPartialUpdateClusterRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
-          LROperation<
-            protos.google.bigtable.admin.v2.ICluster,
-            protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata
-          >,
-          protos.google.longrunning.IOperation | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  > | void {
+      request?: protos.google.bigtable.admin.v2.IPartialUpdateClusterRequest,
+      optionsOrCallback?: CallOptions|Callback<
+          LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        'cluster.name': request.cluster!.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'cluster.name': request.cluster!.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.partialUpdateCluster(request, options, callback);
   }
-  /**
-   * Check the status of the long running operation returned by `partialUpdateCluster()`.
-   * @param {String} name
-   *   The operation name that will be passed.
-   * @returns {Promise} - The promise which resolves to an object.
-   *   The decoded operation object has result and metadata field to get information from.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.partial_update_cluster.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_PartialUpdateCluster_async
-   */
-  async checkPartialUpdateClusterProgress(
-    name: string
-  ): Promise<
-    LROperation<
-      protos.google.bigtable.admin.v2.Cluster,
-      protos.google.bigtable.admin.v2.PartialUpdateClusterMetadata
-    >
-  > {
-    const request = new operationsProtos.google.longrunning.GetOperationRequest(
-      {name}
-    );
+/**
+ * Check the status of the long running operation returned by `partialUpdateCluster()`.
+ * @param {String} name
+ *   The operation name that will be passed.
+ * @returns {Promise} - The promise which resolves to an object.
+ *   The decoded operation object has result and metadata field to get information from.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.partial_update_cluster.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_PartialUpdateCluster_async
+ */
+  async checkPartialUpdateClusterProgress(name: string): Promise<LROperation<protos.google.bigtable.admin.v2.Cluster, protos.google.bigtable.admin.v2.PartialUpdateClusterMetadata>>{
+    const request = new operationsProtos.google.longrunning.GetOperationRequest({name});
     const [operation] = await this.operationsClient.getOperation(request);
-    const decodeOperation = new gax.Operation(
-      operation,
-      this.descriptors.longrunning.partialUpdateCluster,
-      gax.createDefaultBackoffSettings()
-    );
-    return decodeOperation as LROperation<
-      protos.google.bigtable.admin.v2.Cluster,
-      protos.google.bigtable.admin.v2.PartialUpdateClusterMetadata
-    >;
+    const decodeOperation = new gax.Operation(operation, this.descriptors.longrunning.partialUpdateCluster, gax.createDefaultBackoffSettings());
+    return decodeOperation as LROperation<protos.google.bigtable.admin.v2.Cluster, protos.google.bigtable.admin.v2.PartialUpdateClusterMetadata>;
   }
-  /**
-   * Updates an app profile within an instance.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {google.bigtable.admin.v2.AppProfile} request.appProfile
-   *   Required. The app profile which will (partially) replace the current value.
-   * @param {google.protobuf.FieldMask} request.updateMask
-   *   Required. The subset of app profile fields which should be replaced.
-   *   If unset, all fields will be replaced.
-   * @param {boolean} request.ignoreWarnings
-   *   If true, ignore safety checks when updating the app profile.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing
-   *   a long running operation. Its `promise()` method returns a promise
-   *   you can `await` for.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.update_app_profile.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_UpdateAppProfile_async
-   */
+/**
+ * Updates an app profile within an instance.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {google.bigtable.admin.v2.AppProfile} request.appProfile
+ *   Required. The app profile which will (partially) replace the current value.
+ * @param {google.protobuf.FieldMask} request.updateMask
+ *   Required. The subset of app profile fields which should be replaced.
+ *   If unset, all fields will be replaced.
+ * @param {boolean} request.ignoreWarnings
+ *   If true, ignore safety checks when updating the app profile.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing
+ *   a long running operation. Its `promise()` method returns a promise
+ *   you can `await` for.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.update_app_profile.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_UpdateAppProfile_async
+ */
   updateAppProfile(
-    request?: protos.google.bigtable.admin.v2.IUpdateAppProfileRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.IAppProfile,
-        protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IUpdateAppProfileRequest,
+      options?: CallOptions):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.IAppProfile, protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>;
   updateAppProfile(
-    request: protos.google.bigtable.admin.v2.IUpdateAppProfileRequest,
-    options: CallOptions,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.IAppProfile,
-        protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IUpdateAppProfileRequest,
+      options: CallOptions,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IAppProfile, protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   updateAppProfile(
-    request: protos.google.bigtable.admin.v2.IUpdateAppProfileRequest,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.IAppProfile,
-        protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IUpdateAppProfileRequest,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IAppProfile, protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   updateAppProfile(
-    request?: protos.google.bigtable.admin.v2.IUpdateAppProfileRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
-          LROperation<
-            protos.google.bigtable.admin.v2.IAppProfile,
-            protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata
-          >,
-          protos.google.longrunning.IOperation | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.IAppProfile,
-        protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.IAppProfile,
-        protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  > | void {
+      request?: protos.google.bigtable.admin.v2.IUpdateAppProfileRequest,
+      optionsOrCallback?: CallOptions|Callback<
+          LROperation<protos.google.bigtable.admin.v2.IAppProfile, protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IAppProfile, protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.IAppProfile, protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        'app_profile.name': request.appProfile!.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'app_profile.name': request.appProfile!.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.updateAppProfile(request, options, callback);
   }
-  /**
-   * Check the status of the long running operation returned by `updateAppProfile()`.
-   * @param {String} name
-   *   The operation name that will be passed.
-   * @returns {Promise} - The promise which resolves to an object.
-   *   The decoded operation object has result and metadata field to get information from.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.update_app_profile.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_UpdateAppProfile_async
-   */
-  async checkUpdateAppProfileProgress(
-    name: string
-  ): Promise<
-    LROperation<
-      protos.google.bigtable.admin.v2.AppProfile,
-      protos.google.bigtable.admin.v2.UpdateAppProfileMetadata
-    >
-  > {
-    const request = new operationsProtos.google.longrunning.GetOperationRequest(
-      {name}
-    );
+/**
+ * Check the status of the long running operation returned by `updateAppProfile()`.
+ * @param {String} name
+ *   The operation name that will be passed.
+ * @returns {Promise} - The promise which resolves to an object.
+ *   The decoded operation object has result and metadata field to get information from.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.update_app_profile.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_UpdateAppProfile_async
+ */
+  async checkUpdateAppProfileProgress(name: string): Promise<LROperation<protos.google.bigtable.admin.v2.AppProfile, protos.google.bigtable.admin.v2.UpdateAppProfileMetadata>>{
+    const request = new operationsProtos.google.longrunning.GetOperationRequest({name});
     const [operation] = await this.operationsClient.getOperation(request);
-    const decodeOperation = new gax.Operation(
-      operation,
-      this.descriptors.longrunning.updateAppProfile,
-      gax.createDefaultBackoffSettings()
-    );
-    return decodeOperation as LROperation<
-      protos.google.bigtable.admin.v2.AppProfile,
-      protos.google.bigtable.admin.v2.UpdateAppProfileMetadata
-    >;
-  }
-  /**
-   * Lists information about app profiles in an instance.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the instance for which a list of app profiles is
-   *   requested. Values are of the form
-   *   `projects/{project}/instances/{instance}`.
-   *   Use `{instance} = '-'` to list AppProfiles for all Instances in a project,
-   *   e.g., `projects/myproject/instances/-`.
-   * @param {number} request.pageSize
-   *   Maximum number of results per page.
-   *
-   *   A page_size of zero lets the server choose the number of items to return.
-   *   A page_size which is strictly positive will return at most that many items.
-   *   A negative page_size will cause an error.
-   *
-   *   Following the first request, subsequent paginated calls are not required
-   *   to pass a page_size. If a page_size is set in subsequent calls, it must
-   *   match the page_size given in the first request.
-   * @param {string} request.pageToken
-   *   The value of `next_page_token` returned by a previous call.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is Array of [AppProfile]{@link google.bigtable.admin.v2.AppProfile}.
-   *   The client library will perform auto-pagination by default: it will call the API as many
-   *   times as needed and will merge results from all the pages into this array.
-   *   Note that it can affect your quota.
-   *   We recommend using `listAppProfilesAsync()`
-   *   method described below for async iteration which you can stop as needed.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
-   *   for more details and examples.
-   */
+    const decodeOperation = new gax.Operation(operation, this.descriptors.longrunning.updateAppProfile, gax.createDefaultBackoffSettings());
+    return decodeOperation as LROperation<protos.google.bigtable.admin.v2.AppProfile, protos.google.bigtable.admin.v2.UpdateAppProfileMetadata>;
+  }
+ /**
+ * Lists information about app profiles in an instance.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the instance for which a list of app profiles is
+ *   requested. Values are of the form
+ *   `projects/{project}/instances/{instance}`.
+ *   Use `{instance} = '-'` to list AppProfiles for all Instances in a project,
+ *   e.g., `projects/myproject/instances/-`.
+ * @param {number} request.pageSize
+ *   Maximum number of results per page.
+ *
+ *   A page_size of zero lets the server choose the number of items to return.
+ *   A page_size which is strictly positive will return at most that many items.
+ *   A negative page_size will cause an error.
+ *
+ *   Following the first request, subsequent paginated calls are not required
+ *   to pass a page_size. If a page_size is set in subsequent calls, it must
+ *   match the page_size given in the first request.
+ * @param {string} request.pageToken
+ *   The value of `next_page_token` returned by a previous call.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is Array of [AppProfile]{@link google.bigtable.admin.v2.AppProfile}.
+ *   The client library will perform auto-pagination by default: it will call the API as many
+ *   times as needed and will merge results from all the pages into this array.
+ *   Note that it can affect your quota.
+ *   We recommend using `listAppProfilesAsync()`
+ *   method described below for async iteration which you can stop as needed.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ */
   listAppProfiles(
-    request?: protos.google.bigtable.admin.v2.IListAppProfilesRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IAppProfile[],
-      protos.google.bigtable.admin.v2.IListAppProfilesRequest | null,
-      protos.google.bigtable.admin.v2.IListAppProfilesResponse
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IListAppProfilesRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.IAppProfile[],
+        protos.google.bigtable.admin.v2.IListAppProfilesRequest|null,
+        protos.google.bigtable.admin.v2.IListAppProfilesResponse
+      ]>;
   listAppProfiles(
-    request: protos.google.bigtable.admin.v2.IListAppProfilesRequest,
-    options: CallOptions,
-    callback: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListAppProfilesRequest,
-      | protos.google.bigtable.admin.v2.IListAppProfilesResponse
-      | null
-      | undefined,
-      protos.google.bigtable.admin.v2.IAppProfile
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListAppProfilesRequest,
+      options: CallOptions,
+      callback: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListAppProfilesRequest,
+          protos.google.bigtable.admin.v2.IListAppProfilesResponse|null|undefined,
+          protos.google.bigtable.admin.v2.IAppProfile>): void;
   listAppProfiles(
-    request: protos.google.bigtable.admin.v2.IListAppProfilesRequest,
-    callback: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListAppProfilesRequest,
-      | protos.google.bigtable.admin.v2.IListAppProfilesResponse
-      | null
-      | undefined,
-      protos.google.bigtable.admin.v2.IAppProfile
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListAppProfilesRequest,
+      callback: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListAppProfilesRequest,
+          protos.google.bigtable.admin.v2.IListAppProfilesResponse|null|undefined,
+          protos.google.bigtable.admin.v2.IAppProfile>): void;
   listAppProfiles(
-    request?: protos.google.bigtable.admin.v2.IListAppProfilesRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | PaginationCallback<
+      request?: protos.google.bigtable.admin.v2.IListAppProfilesRequest,
+      optionsOrCallback?: CallOptions|PaginationCallback<
           protos.google.bigtable.admin.v2.IListAppProfilesRequest,
-          | protos.google.bigtable.admin.v2.IListAppProfilesResponse
-          | null
-          | undefined,
-          protos.google.bigtable.admin.v2.IAppProfile
-        >,
-    callback?: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListAppProfilesRequest,
-      | protos.google.bigtable.admin.v2.IListAppProfilesResponse
-      | null
-      | undefined,
-      protos.google.bigtable.admin.v2.IAppProfile
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IAppProfile[],
-      protos.google.bigtable.admin.v2.IListAppProfilesRequest | null,
-      protos.google.bigtable.admin.v2.IListAppProfilesResponse
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IListAppProfilesResponse|null|undefined,
+          protos.google.bigtable.admin.v2.IAppProfile>,
+      callback?: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListAppProfilesRequest,
+          protos.google.bigtable.admin.v2.IListAppProfilesResponse|null|undefined,
+          protos.google.bigtable.admin.v2.IAppProfile>):
+      Promise<[
+        protos.google.bigtable.admin.v2.IAppProfile[],
+        protos.google.bigtable.admin.v2.IListAppProfilesRequest|null,
+        protos.google.bigtable.admin.v2.IListAppProfilesResponse
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
     return this.innerApiCalls.listAppProfiles(request, options, callback);
   }
 
-  /**
-   * Equivalent to `method.name.toCamelCase()`, but returns a NodeJS Stream object.
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the instance for which a list of app profiles is
-   *   requested. Values are of the form
-   *   `projects/{project}/instances/{instance}`.
-   *   Use `{instance} = '-'` to list AppProfiles for all Instances in a project,
-   *   e.g., `projects/myproject/instances/-`.
-   * @param {number} request.pageSize
-   *   Maximum number of results per page.
-   *
-   *   A page_size of zero lets the server choose the number of items to return.
-   *   A page_size which is strictly positive will return at most that many items.
-   *   A negative page_size will cause an error.
-   *
-   *   Following the first request, subsequent paginated calls are not required
-   *   to pass a page_size. If a page_size is set in subsequent calls, it must
-   *   match the page_size given in the first request.
-   * @param {string} request.pageToken
-   *   The value of `next_page_token` returned by a previous call.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Stream}
-   *   An object stream which emits an object representing [AppProfile]{@link google.bigtable.admin.v2.AppProfile} on 'data' event.
-   *   The client library will perform auto-pagination by default: it will call the API as many
-   *   times as needed. Note that it can affect your quota.
-   *   We recommend using `listAppProfilesAsync()`
-   *   method described below for async iteration which you can stop as needed.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
-   *   for more details and examples.
-   */
+/**
+ * Equivalent to `method.name.toCamelCase()`, but returns a NodeJS Stream object.
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the instance for which a list of app profiles is
+ *   requested. Values are of the form
+ *   `projects/{project}/instances/{instance}`.
+ *   Use `{instance} = '-'` to list AppProfiles for all Instances in a project,
+ *   e.g., `projects/myproject/instances/-`.
+ * @param {number} request.pageSize
+ *   Maximum number of results per page.
+ *
+ *   A page_size of zero lets the server choose the number of items to return.
+ *   A page_size which is strictly positive will return at most that many items.
+ *   A negative page_size will cause an error.
+ *
+ *   Following the first request, subsequent paginated calls are not required
+ *   to pass a page_size. If a page_size is set in subsequent calls, it must
+ *   match the page_size given in the first request.
+ * @param {string} request.pageToken
+ *   The value of `next_page_token` returned by a previous call.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Stream}
+ *   An object stream which emits an object representing [AppProfile]{@link google.bigtable.admin.v2.AppProfile} on 'data' event.
+ *   The client library will perform auto-pagination by default: it will call the API as many
+ *   times as needed. Note that it can affect your quota.
+ *   We recommend using `listAppProfilesAsync()`
+ *   method described below for async iteration which you can stop as needed.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ */
   listAppProfilesStream(
-    request?: protos.google.bigtable.admin.v2.IListAppProfilesRequest,
-    options?: CallOptions
-  ): Transform {
+      request?: protos.google.bigtable.admin.v2.IListAppProfilesRequest,
+      options?: CallOptions):
+    Transform{
     request = request || {};
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     const defaultCallSettings = this._defaults['listAppProfiles'];
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
@@ -2715,55 +2167,56 @@ export class BigtableInstanceAdminClient {
     );
   }
 
-  /**
-   * Equivalent to `listAppProfiles`, but returns an iterable object.
-   *
-   * `for`-`await`-`of` syntax is used with the iterable to get response elements on-demand.
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the instance for which a list of app profiles is
-   *   requested. Values are of the form
-   *   `projects/{project}/instances/{instance}`.
-   *   Use `{instance} = '-'` to list AppProfiles for all Instances in a project,
-   *   e.g., `projects/myproject/instances/-`.
-   * @param {number} request.pageSize
-   *   Maximum number of results per page.
-   *
-   *   A page_size of zero lets the server choose the number of items to return.
-   *   A page_size which is strictly positive will return at most that many items.
-   *   A negative page_size will cause an error.
-   *
-   *   Following the first request, subsequent paginated calls are not required
-   *   to pass a page_size. If a page_size is set in subsequent calls, it must
-   *   match the page_size given in the first request.
-   * @param {string} request.pageToken
-   *   The value of `next_page_token` returned by a previous call.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Object}
-   *   An iterable Object that allows [async iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols).
-   *   When you iterate the returned iterable, each element will be an object representing
-   *   [AppProfile]{@link google.bigtable.admin.v2.AppProfile}. The API will be called under the hood as needed, once per the page,
-   *   so you can stop the iteration when you don't need more results.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.list_app_profiles.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_ListAppProfiles_async
-   */
+/**
+ * Equivalent to `listAppProfiles`, but returns an iterable object.
+ *
+ * `for`-`await`-`of` syntax is used with the iterable to get response elements on-demand.
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the instance for which a list of app profiles is
+ *   requested. Values are of the form
+ *   `projects/{project}/instances/{instance}`.
+ *   Use `{instance} = '-'` to list AppProfiles for all Instances in a project,
+ *   e.g., `projects/myproject/instances/-`.
+ * @param {number} request.pageSize
+ *   Maximum number of results per page.
+ *
+ *   A page_size of zero lets the server choose the number of items to return.
+ *   A page_size which is strictly positive will return at most that many items.
+ *   A negative page_size will cause an error.
+ *
+ *   Following the first request, subsequent paginated calls are not required
+ *   to pass a page_size. If a page_size is set in subsequent calls, it must
+ *   match the page_size given in the first request.
+ * @param {string} request.pageToken
+ *   The value of `next_page_token` returned by a previous call.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Object}
+ *   An iterable Object that allows [async iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols).
+ *   When you iterate the returned iterable, each element will be an object representing
+ *   [AppProfile]{@link google.bigtable.admin.v2.AppProfile}. The API will be called under the hood as needed, once per the page,
+ *   so you can stop the iteration when you don't need more results.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.list_app_profiles.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_ListAppProfiles_async
+ */
   listAppProfilesAsync(
-    request?: protos.google.bigtable.admin.v2.IListAppProfilesRequest,
-    options?: CallOptions
-  ): AsyncIterable<protos.google.bigtable.admin.v2.IAppProfile> {
+      request?: protos.google.bigtable.admin.v2.IListAppProfilesRequest,
+      options?: CallOptions):
+    AsyncIterable<protos.google.bigtable.admin.v2.IAppProfile>{
     request = request || {};
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     const defaultCallSettings = this._defaults['listAppProfiles'];
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
@@ -2773,178 +2226,161 @@ export class BigtableInstanceAdminClient {
       callSettings
     ) as AsyncIterable<protos.google.bigtable.admin.v2.IAppProfile>;
   }
-  /**
-   * Lists hot tablets in a cluster, within the time range provided. Hot
-   * tablets are ordered based on CPU usage.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The cluster name to list hot tablets.
-   *   Value is in the following form:
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
-   * @param {google.protobuf.Timestamp} request.startTime
-   *   The start time to list hot tablets. The hot tablets in the response will
-   *   have start times between the requested start time and end time. Start time
-   *   defaults to Now if it is unset, and end time defaults to Now - 24 hours if
-   *   it is unset. The start time should be less than the end time, and the
-   *   maximum allowed time range between start time and end time is 48 hours.
-   *   Start time and end time should have values between Now and Now - 14 days.
-   * @param {google.protobuf.Timestamp} request.endTime
-   *   The end time to list hot tablets.
-   * @param {number} request.pageSize
-   *   Maximum number of results per page.
-   *
-   *   A page_size that is empty or zero lets the server choose the number of
-   *   items to return. A page_size which is strictly positive will return at most
-   *   that many items. A negative page_size will cause an error.
-   *
-   *   Following the first request, subsequent paginated calls do not need a
-   *   page_size field. If a page_size is set in subsequent calls, it must match
-   *   the page_size given in the first request.
-   * @param {string} request.pageToken
-   *   The value of `next_page_token` returned by a previous call.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is Array of [HotTablet]{@link google.bigtable.admin.v2.HotTablet}.
-   *   The client library will perform auto-pagination by default: it will call the API as many
-   *   times as needed and will merge results from all the pages into this array.
-   *   Note that it can affect your quota.
-   *   We recommend using `listHotTabletsAsync()`
-   *   method described below for async iteration which you can stop as needed.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
-   *   for more details and examples.
-   */
+ /**
+ * Lists hot tablets in a cluster, within the time range provided. Hot
+ * tablets are ordered based on CPU usage.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The cluster name to list hot tablets.
+ *   Value is in the following form:
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ * @param {google.protobuf.Timestamp} request.startTime
+ *   The start time to list hot tablets. The hot tablets in the response will
+ *   have start times between the requested start time and end time. Start time
+ *   defaults to Now if it is unset, and end time defaults to Now - 24 hours if
+ *   it is unset. The start time should be less than the end time, and the
+ *   maximum allowed time range between start time and end time is 48 hours.
+ *   Start time and end time should have values between Now and Now - 14 days.
+ * @param {google.protobuf.Timestamp} request.endTime
+ *   The end time to list hot tablets.
+ * @param {number} request.pageSize
+ *   Maximum number of results per page.
+ *
+ *   A page_size that is empty or zero lets the server choose the number of
+ *   items to return. A page_size which is strictly positive will return at most
+ *   that many items. A negative page_size will cause an error.
+ *
+ *   Following the first request, subsequent paginated calls do not need a
+ *   page_size field. If a page_size is set in subsequent calls, it must match
+ *   the page_size given in the first request.
+ * @param {string} request.pageToken
+ *   The value of `next_page_token` returned by a previous call.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is Array of [HotTablet]{@link google.bigtable.admin.v2.HotTablet}.
+ *   The client library will perform auto-pagination by default: it will call the API as many
+ *   times as needed and will merge results from all the pages into this array.
+ *   Note that it can affect your quota.
+ *   We recommend using `listHotTabletsAsync()`
+ *   method described below for async iteration which you can stop as needed.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ */
   listHotTablets(
-    request?: protos.google.bigtable.admin.v2.IListHotTabletsRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IHotTablet[],
-      protos.google.bigtable.admin.v2.IListHotTabletsRequest | null,
-      protos.google.bigtable.admin.v2.IListHotTabletsResponse
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IListHotTabletsRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.IHotTablet[],
+        protos.google.bigtable.admin.v2.IListHotTabletsRequest|null,
+        protos.google.bigtable.admin.v2.IListHotTabletsResponse
+      ]>;
   listHotTablets(
-    request: protos.google.bigtable.admin.v2.IListHotTabletsRequest,
-    options: CallOptions,
-    callback: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListHotTabletsRequest,
-      | protos.google.bigtable.admin.v2.IListHotTabletsResponse
-      | null
-      | undefined,
-      protos.google.bigtable.admin.v2.IHotTablet
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListHotTabletsRequest,
+      options: CallOptions,
+      callback: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListHotTabletsRequest,
+          protos.google.bigtable.admin.v2.IListHotTabletsResponse|null|undefined,
+          protos.google.bigtable.admin.v2.IHotTablet>): void;
   listHotTablets(
-    request: protos.google.bigtable.admin.v2.IListHotTabletsRequest,
-    callback: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListHotTabletsRequest,
-      | protos.google.bigtable.admin.v2.IListHotTabletsResponse
-      | null
-      | undefined,
-      protos.google.bigtable.admin.v2.IHotTablet
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListHotTabletsRequest,
+      callback: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListHotTabletsRequest,
+          protos.google.bigtable.admin.v2.IListHotTabletsResponse|null|undefined,
+          protos.google.bigtable.admin.v2.IHotTablet>): void;
   listHotTablets(
-    request?: protos.google.bigtable.admin.v2.IListHotTabletsRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | PaginationCallback<
+      request?: protos.google.bigtable.admin.v2.IListHotTabletsRequest,
+      optionsOrCallback?: CallOptions|PaginationCallback<
           protos.google.bigtable.admin.v2.IListHotTabletsRequest,
-          | protos.google.bigtable.admin.v2.IListHotTabletsResponse
-          | null
-          | undefined,
-          protos.google.bigtable.admin.v2.IHotTablet
-        >,
-    callback?: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListHotTabletsRequest,
-      | protos.google.bigtable.admin.v2.IListHotTabletsResponse
-      | null
-      | undefined,
-      protos.google.bigtable.admin.v2.IHotTablet
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IHotTablet[],
-      protos.google.bigtable.admin.v2.IListHotTabletsRequest | null,
-      protos.google.bigtable.admin.v2.IListHotTabletsResponse
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IListHotTabletsResponse|null|undefined,
+          protos.google.bigtable.admin.v2.IHotTablet>,
+      callback?: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListHotTabletsRequest,
+          protos.google.bigtable.admin.v2.IListHotTabletsResponse|null|undefined,
+          protos.google.bigtable.admin.v2.IHotTablet>):
+      Promise<[
+        protos.google.bigtable.admin.v2.IHotTablet[],
+        protos.google.bigtable.admin.v2.IListHotTabletsRequest|null,
+        protos.google.bigtable.admin.v2.IListHotTabletsResponse
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
     return this.innerApiCalls.listHotTablets(request, options, callback);
   }
 
-  /**
-   * Equivalent to `method.name.toCamelCase()`, but returns a NodeJS Stream object.
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The cluster name to list hot tablets.
-   *   Value is in the following form:
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
-   * @param {google.protobuf.Timestamp} request.startTime
-   *   The start time to list hot tablets. The hot tablets in the response will
-   *   have start times between the requested start time and end time. Start time
-   *   defaults to Now if it is unset, and end time defaults to Now - 24 hours if
-   *   it is unset. The start time should be less than the end time, and the
-   *   maximum allowed time range between start time and end time is 48 hours.
-   *   Start time and end time should have values between Now and Now - 14 days.
-   * @param {google.protobuf.Timestamp} request.endTime
-   *   The end time to list hot tablets.
-   * @param {number} request.pageSize
-   *   Maximum number of results per page.
-   *
-   *   A page_size that is empty or zero lets the server choose the number of
-   *   items to return. A page_size which is strictly positive will return at most
-   *   that many items. A negative page_size will cause an error.
-   *
-   *   Following the first request, subsequent paginated calls do not need a
-   *   page_size field. If a page_size is set in subsequent calls, it must match
-   *   the page_size given in the first request.
-   * @param {string} request.pageToken
-   *   The value of `next_page_token` returned by a previous call.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Stream}
-   *   An object stream which emits an object representing [HotTablet]{@link google.bigtable.admin.v2.HotTablet} on 'data' event.
-   *   The client library will perform auto-pagination by default: it will call the API as many
-   *   times as needed. Note that it can affect your quota.
-   *   We recommend using `listHotTabletsAsync()`
-   *   method described below for async iteration which you can stop as needed.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
-   *   for more details and examples.
-   */
+/**
+ * Equivalent to `method.name.toCamelCase()`, but returns a NodeJS Stream object.
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The cluster name to list hot tablets.
+ *   Value is in the following form:
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ * @param {google.protobuf.Timestamp} request.startTime
+ *   The start time to list hot tablets. The hot tablets in the response will
+ *   have start times between the requested start time and end time. Start time
+ *   defaults to Now if it is unset, and end time defaults to Now - 24 hours if
+ *   it is unset. The start time should be less than the end time, and the
+ *   maximum allowed time range between start time and end time is 48 hours.
+ *   Start time and end time should have values between Now and Now - 14 days.
+ * @param {google.protobuf.Timestamp} request.endTime
+ *   The end time to list hot tablets.
+ * @param {number} request.pageSize
+ *   Maximum number of results per page.
+ *
+ *   A page_size that is empty or zero lets the server choose the number of
+ *   items to return. A page_size which is strictly positive will return at most
+ *   that many items. A negative page_size will cause an error.
+ *
+ *   Following the first request, subsequent paginated calls do not need a
+ *   page_size field. If a page_size is set in subsequent calls, it must match
+ *   the page_size given in the first request.
+ * @param {string} request.pageToken
+ *   The value of `next_page_token` returned by a previous call.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Stream}
+ *   An object stream which emits an object representing [HotTablet]{@link google.bigtable.admin.v2.HotTablet} on 'data' event.
+ *   The client library will perform auto-pagination by default: it will call the API as many
+ *   times as needed. Note that it can affect your quota.
+ *   We recommend using `listHotTabletsAsync()`
+ *   method described below for async iteration which you can stop as needed.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ */
   listHotTabletsStream(
-    request?: protos.google.bigtable.admin.v2.IListHotTabletsRequest,
-    options?: CallOptions
-  ): Transform {
+      request?: protos.google.bigtable.admin.v2.IListHotTabletsRequest,
+      options?: CallOptions):
+    Transform{
     request = request || {};
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     const defaultCallSettings = this._defaults['listHotTablets'];
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
@@ -2955,71 +2391,329 @@ export class BigtableInstanceAdminClient {
     );
   }
 
-  /**
-   * Equivalent to `listHotTablets`, but returns an iterable object.
+/**
+ * Equivalent to `listHotTablets`, but returns an iterable object.
+ *
+ * `for`-`await`-`of` syntax is used with the iterable to get response elements on-demand.
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The cluster name to list hot tablets.
+ *   Value is in the following form:
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ * @param {google.protobuf.Timestamp} request.startTime
+ *   The start time to list hot tablets. The hot tablets in the response will
+ *   have start times between the requested start time and end time. Start time
+ *   defaults to Now if it is unset, and end time defaults to Now - 24 hours if
+ *   it is unset. The start time should be less than the end time, and the
+ *   maximum allowed time range between start time and end time is 48 hours.
+ *   Start time and end time should have values between Now and Now - 14 days.
+ * @param {google.protobuf.Timestamp} request.endTime
+ *   The end time to list hot tablets.
+ * @param {number} request.pageSize
+ *   Maximum number of results per page.
+ *
+ *   A page_size that is empty or zero lets the server choose the number of
+ *   items to return. A page_size which is strictly positive will return at most
+ *   that many items. A negative page_size will cause an error.
+ *
+ *   Following the first request, subsequent paginated calls do not need a
+ *   page_size field. If a page_size is set in subsequent calls, it must match
+ *   the page_size given in the first request.
+ * @param {string} request.pageToken
+ *   The value of `next_page_token` returned by a previous call.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Object}
+ *   An iterable Object that allows [async iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols).
+ *   When you iterate the returned iterable, each element will be an object representing
+ *   [HotTablet]{@link google.bigtable.admin.v2.HotTablet}. The API will be called under the hood as needed, once per the page,
+ *   so you can stop the iteration when you don't need more results.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_instance_admin.list_hot_tablets.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_ListHotTablets_async
+ */
+  listHotTabletsAsync(
+      request?: protos.google.bigtable.admin.v2.IListHotTabletsRequest,
+      options?: CallOptions):
+    AsyncIterable<protos.google.bigtable.admin.v2.IHotTablet>{
+    request = request || {};
+    options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
+    const defaultCallSettings = this._defaults['listHotTablets'];
+    const callSettings = defaultCallSettings.merge(options);
+    this.initialize();
+    return this.descriptors.page.listHotTablets.asyncIterate(
+      this.innerApiCalls['listHotTablets'] as GaxCall,
+      request as unknown as RequestType,
+      callSettings
+    ) as AsyncIterable<protos.google.bigtable.admin.v2.IHotTablet>;
+  }
+/**
+   * Gets information about a location.
+   *
+   * @param {Object} request
+   *   The request object that will be sent.
+   * @param {string} request.name
+   *   Resource name for the location.
+   * @param {object} [options]
+   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+   * @returns {Promise} - The promise which resolves to an array.
+   *   The first element of the array is an object representing [Location]{@link google.cloud.location.Location}.
+   *   Please see the
+   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+   *   for more details and examples.
+   * @example
+   * ```
+   * const [response] = await client.getLocation(request);
+   * ```
+   */
+  getLocation(
+    request: LocationProtos.google.cloud.location.IGetLocationRequest,
+    options?:
+      | gax.CallOptions
+      | Callback<
+          LocationProtos.google.cloud.location.ILocation,
+          | LocationProtos.google.cloud.location.IGetLocationRequest
+          | null
+          | undefined,
+          {} | null | undefined
+        >,
+    callback?: Callback<
+      LocationProtos.google.cloud.location.ILocation,
+      | LocationProtos.google.cloud.location.IGetLocationRequest
+      | null
+      | undefined,
+      {} | null | undefined
+    >
+  ): Promise<LocationProtos.google.cloud.location.ILocation> {
+    return this.locationsClient.getLocation(request, options, callback);
+  }
+
+/**
+   * Lists information about the supported locations for this service. Returns an iterable object.
    *
    * `for`-`await`-`of` syntax is used with the iterable to get response elements on-demand.
    * @param {Object} request
    *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The cluster name to list hot tablets.
-   *   Value is in the following form:
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
-   * @param {google.protobuf.Timestamp} request.startTime
-   *   The start time to list hot tablets. The hot tablets in the response will
-   *   have start times between the requested start time and end time. Start time
-   *   defaults to Now if it is unset, and end time defaults to Now - 24 hours if
-   *   it is unset. The start time should be less than the end time, and the
-   *   maximum allowed time range between start time and end time is 48 hours.
-   *   Start time and end time should have values between Now and Now - 14 days.
-   * @param {google.protobuf.Timestamp} request.endTime
-   *   The end time to list hot tablets.
+   * @param {string} request.name
+   *   The resource that owns the locations collection, if applicable.
+   * @param {string} request.filter
+   *   The standard list filter.
    * @param {number} request.pageSize
-   *   Maximum number of results per page.
-   *
-   *   A page_size that is empty or zero lets the server choose the number of
-   *   items to return. A page_size which is strictly positive will return at most
-   *   that many items. A negative page_size will cause an error.
-   *
-   *   Following the first request, subsequent paginated calls do not need a
-   *   page_size field. If a page_size is set in subsequent calls, it must match
-   *   the page_size given in the first request.
+   *   The standard list page size.
    * @param {string} request.pageToken
-   *   The value of `next_page_token` returned by a previous call.
+   *   The standard list page token.
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Object}
    *   An iterable Object that allows [async iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols).
    *   When you iterate the returned iterable, each element will be an object representing
-   *   [HotTablet]{@link google.bigtable.admin.v2.HotTablet}. The API will be called under the hood as needed, once per the page,
+   *   [Location]{@link google.cloud.location.Location}. The API will be called under the hood as needed, once per the page,
    *   so you can stop the iteration when you don't need more results.
    *   Please see the
    *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
    *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_instance_admin.list_hot_tablets.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableInstanceAdmin_ListHotTablets_async
-   */
-  listHotTabletsAsync(
-    request?: protos.google.bigtable.admin.v2.IListHotTabletsRequest,
+   * @example
+   * ```
+   * const iterable = client.listLocationsAsync(request);
+   * for await (const response of iterable) {
+   *   // process response
+   * }
+   * ```
+   */
+  listLocationsAsync(
+    request: LocationProtos.google.cloud.location.IListLocationsRequest,
     options?: CallOptions
-  ): AsyncIterable<protos.google.bigtable.admin.v2.IHotTablet> {
-    request = request || {};
-    options = options || {};
-    options.otherArgs = options.otherArgs || {};
-    options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
-    const defaultCallSettings = this._defaults['listHotTablets'];
-    const callSettings = defaultCallSettings.merge(options);
-    this.initialize();
-    return this.descriptors.page.listHotTablets.asyncIterate(
-      this.innerApiCalls['listHotTablets'] as GaxCall,
-      request as unknown as RequestType,
-      callSettings
-    ) as AsyncIterable<protos.google.bigtable.admin.v2.IHotTablet>;
+  ): AsyncIterable<LocationProtos.google.cloud.location.ILocation> {
+    return this.locationsClient.listLocationsAsync(request, options);
+  }
+
+/**
+   * Gets the latest state of a long-running operation.  Clients can use this
+   * method to poll the operation result at intervals as recommended by the API
+   * service.
+   *
+   * @param {Object} request - The request object that will be sent.
+   * @param {string} request.name - The name of the operation resource.
+   * @param {Object=} options
+   *   Optional parameters. You can override the default settings for this call,
+   *   e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+   *   https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+   *   details.
+   * @param {function(?Error, ?Object)=} callback
+   *   The function which will be called with the result of the API call.
+   *
+   *   The second parameter to the callback is an object representing
+   * [google.longrunning.Operation]{@link
+   * external:"google.longrunning.Operation"}.
+   * @return {Promise} - The promise which resolves to an array.
+   *   The first element of the array is an object representing
+   * [google.longrunning.Operation]{@link
+   * external:"google.longrunning.Operation"}. The promise has a method named
+   * "cancel" which cancels the ongoing API call.
+   *
+   * @example
+   * ```
+   * const client = longrunning.operationsClient();
+   * const name = '';
+   * const [response] = await client.getOperation({name});
+   * // doThingsWith(response)
+   * ```
+   */
+  getOperation(
+    request: protos.google.longrunning.GetOperationRequest,
+    options?:
+      | gax.CallOptions
+      | Callback<
+          protos.google.longrunning.Operation,
+          protos.google.longrunning.GetOperationRequest,
+          {} | null | undefined
+        >,
+    callback?: Callback<
+      protos.google.longrunning.Operation,
+      protos.google.longrunning.GetOperationRequest,
+      {} | null | undefined
+    >
+  ): Promise<[protos.google.longrunning.Operation]> {
+    return this.operationsClient.getOperation(request, options, callback);
+  }
+  /**
+   * Lists operations that match the specified filter in the request. If the
+   * server doesn't support this method, it returns `UNIMPLEMENTED`. Returns an iterable object.
+   *
+   * For-await-of syntax is used with the iterable to recursively get response element on-demand.
+   *
+   * @param {Object} request - The request object that will be sent.
+   * @param {string} request.name - The name of the operation collection.
+   * @param {string} request.filter - The standard list filter.
+   * @param {number=} request.pageSize -
+   *   The maximum number of resources contained in the underlying API
+   *   response. If page streaming is performed per-resource, this
+   *   parameter does not affect the return value. If page streaming is
+   *   performed per-page, this determines the maximum number of
+   *   resources in a page.
+   * @param {Object=} options
+   *   Optional parameters. You can override the default settings for this call,
+   *   e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+   *   https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+   *   details.
+   * @returns {Object}
+   *   An iterable Object that conforms to @link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols.
+   *
+   * @example
+   * ```
+   * const client = longrunning.operationsClient();
+   * for await (const response of client.listOperationsAsync(request));
+   * // doThingsWith(response)
+   * ```
+   */
+  listOperationsAsync(
+    request: protos.google.longrunning.ListOperationsRequest,
+    options?: gax.CallOptions
+  ): AsyncIterable<protos.google.longrunning.ListOperationsResponse> {
+    return this.operationsClient.listOperationsAsync(request, options);
+  }
+  /**
+   * Starts asynchronous cancellation on a long-running operation.  The server
+   * makes a best effort to cancel the operation, but success is not
+   * guaranteed.  If the server doesn't support this method, it returns
+   * `google.rpc.Code.UNIMPLEMENTED`.  Clients can use
+   * {@link Operations.GetOperation} or
+   * other methods to check whether the cancellation succeeded or whether the
+   * operation completed despite cancellation. On successful cancellation,
+   * the operation is not deleted; instead, it becomes an operation with
+   * an {@link Operation.error} value with a {@link google.rpc.Status.code} of
+   * 1, corresponding to `Code.CANCELLED`.
+   *
+   * @param {Object} request - The request object that will be sent.
+   * @param {string} request.name - The name of the operation resource to be cancelled.
+   * @param {Object=} options
+   *   Optional parameters. You can override the default settings for this call,
+   * e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+   * https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+   * details.
+   * @param {function(?Error)=} callback
+   *   The function which will be called with the result of the API call.
+   * @return {Promise} - The promise which resolves when API call finishes.
+   *   The promise has a method named "cancel" which cancels the ongoing API
+   * call.
+   *
+   * @example
+   * ```
+   * const client = longrunning.operationsClient();
+   * await client.cancelOperation({name: ''});
+   * ```
+   */
+   cancelOperation(
+    request: protos.google.longrunning.CancelOperationRequest,
+    options?:
+      | gax.CallOptions
+      | Callback<
+          protos.google.protobuf.Empty,
+          protos.google.longrunning.CancelOperationRequest,
+          {} | undefined | null
+        >,
+    callback?: Callback<
+      protos.google.longrunning.CancelOperationRequest,
+      protos.google.protobuf.Empty,
+      {} | undefined | null
+    >
+  ): Promise<protos.google.protobuf.Empty> {
+    return this.operationsClient.cancelOperation(request, options, callback);
+  }
+
+  /**
+   * Deletes a long-running operation. This method indicates that the client is
+   * no longer interested in the operation result. It does not cancel the
+   * operation. If the server doesn't support this method, it returns
+   * `google.rpc.Code.UNIMPLEMENTED`.
+   *
+   * @param {Object} request - The request object that will be sent.
+   * @param {string} request.name - The name of the operation resource to be deleted.
+   * @param {Object=} options
+   *   Optional parameters. You can override the default settings for this call,
+   * e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+   * https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+   * details.
+   * @param {function(?Error)=} callback
+   *   The function which will be called with the result of the API call.
+   * @return {Promise} - The promise which resolves when API call finishes.
+   *   The promise has a method named "cancel" which cancels the ongoing API
+   * call.
+   *
+   * @example
+   * ```
+   * const client = longrunning.operationsClient();
+   * await client.deleteOperation({name: ''});
+   * ```
+   */
+  deleteOperation(
+    request: protos.google.longrunning.DeleteOperationRequest,
+    options?:
+      | gax.CallOptions
+      | Callback<
+          protos.google.protobuf.Empty,
+          protos.google.longrunning.DeleteOperationRequest,
+          {} | null | undefined
+        >,
+    callback?: Callback<
+      protos.google.protobuf.Empty,
+      protos.google.longrunning.DeleteOperationRequest,
+      {} | null | undefined
+    >
+  ): Promise<protos.google.protobuf.Empty> {
+    return this.operationsClient.deleteOperation(request, options, callback);
   }
+
   // --------------------
   // -- Path templates --
   // --------------------
@@ -3032,7 +2726,7 @@ export class BigtableInstanceAdminClient {
    * @param {string} app_profile
    * @returns {string} Resource name string.
    */
-  appProfilePath(project: string, instance: string, appProfile: string) {
+  appProfilePath(project:string,instance:string,appProfile:string) {
     return this.pathTemplates.appProfilePathTemplate.render({
       project: project,
       instance: instance,
@@ -3048,8 +2742,7 @@ export class BigtableInstanceAdminClient {
    * @returns {string} A string representing the project.
    */
   matchProjectFromAppProfileName(appProfileName: string) {
-    return this.pathTemplates.appProfilePathTemplate.match(appProfileName)
-      .project;
+    return this.pathTemplates.appProfilePathTemplate.match(appProfileName).project;
   }
 
   /**
@@ -3060,8 +2753,7 @@ export class BigtableInstanceAdminClient {
    * @returns {string} A string representing the instance.
    */
   matchInstanceFromAppProfileName(appProfileName: string) {
-    return this.pathTemplates.appProfilePathTemplate.match(appProfileName)
-      .instance;
+    return this.pathTemplates.appProfilePathTemplate.match(appProfileName).instance;
   }
 
   /**
@@ -3072,8 +2764,7 @@ export class BigtableInstanceAdminClient {
    * @returns {string} A string representing the app_profile.
    */
   matchAppProfileFromAppProfileName(appProfileName: string) {
-    return this.pathTemplates.appProfilePathTemplate.match(appProfileName)
-      .app_profile;
+    return this.pathTemplates.appProfilePathTemplate.match(appProfileName).app_profile;
   }
 
   /**
@@ -3085,12 +2776,7 @@ export class BigtableInstanceAdminClient {
    * @param {string} backup
    * @returns {string} Resource name string.
    */
-  backupPath(
-    project: string,
-    instance: string,
-    cluster: string,
-    backup: string
-  ) {
+  backupPath(project:string,instance:string,cluster:string,backup:string) {
     return this.pathTemplates.backupPathTemplate.render({
       project: project,
       instance: instance,
@@ -3151,7 +2837,7 @@ export class BigtableInstanceAdminClient {
    * @param {string} cluster
    * @returns {string} Resource name string.
    */
-  clusterPath(project: string, instance: string, cluster: string) {
+  clusterPath(project:string,instance:string,cluster:string) {
     return this.pathTemplates.clusterPathTemplate.render({
       project: project,
       instance: instance,
@@ -3201,12 +2887,7 @@ export class BigtableInstanceAdminClient {
    * @param {string} hot_tablet
    * @returns {string} Resource name string.
    */
-  hotTabletPath(
-    project: string,
-    instance: string,
-    cluster: string,
-    hotTablet: string
-  ) {
+  hotTabletPath(project:string,instance:string,cluster:string,hotTablet:string) {
     return this.pathTemplates.hotTabletPathTemplate.render({
       project: project,
       instance: instance,
@@ -3223,8 +2904,7 @@ export class BigtableInstanceAdminClient {
    * @returns {string} A string representing the project.
    */
   matchProjectFromHotTabletName(hotTabletName: string) {
-    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName)
-      .project;
+    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName).project;
   }
 
   /**
@@ -3235,8 +2915,7 @@ export class BigtableInstanceAdminClient {
    * @returns {string} A string representing the instance.
    */
   matchInstanceFromHotTabletName(hotTabletName: string) {
-    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName)
-      .instance;
+    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName).instance;
   }
 
   /**
@@ -3247,8 +2926,7 @@ export class BigtableInstanceAdminClient {
    * @returns {string} A string representing the cluster.
    */
   matchClusterFromHotTabletName(hotTabletName: string) {
-    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName)
-      .cluster;
+    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName).cluster;
   }
 
   /**
@@ -3259,8 +2937,7 @@ export class BigtableInstanceAdminClient {
    * @returns {string} A string representing the hot_tablet.
    */
   matchHotTabletFromHotTabletName(hotTabletName: string) {
-    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName)
-      .hot_tablet;
+    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName).hot_tablet;
   }
 
   /**
@@ -3270,7 +2947,7 @@ export class BigtableInstanceAdminClient {
    * @param {string} instance
    * @returns {string} Resource name string.
    */
-  instancePath(project: string, instance: string) {
+  instancePath(project:string,instance:string) {
     return this.pathTemplates.instancePathTemplate.render({
       project: project,
       instance: instance,
@@ -3305,7 +2982,7 @@ export class BigtableInstanceAdminClient {
    * @param {string} project
    * @returns {string} Resource name string.
    */
-  projectPath(project: string) {
+  projectPath(project:string) {
     return this.pathTemplates.projectPathTemplate.render({
       project: project,
     });
@@ -3331,12 +3008,7 @@ export class BigtableInstanceAdminClient {
    * @param {string} snapshot
    * @returns {string} Resource name string.
    */
-  snapshotPath(
-    project: string,
-    instance: string,
-    cluster: string,
-    snapshot: string
-  ) {
+  snapshotPath(project:string,instance:string,cluster:string,snapshot:string) {
     return this.pathTemplates.snapshotPathTemplate.render({
       project: project,
       instance: instance,
@@ -3397,7 +3069,7 @@ export class BigtableInstanceAdminClient {
    * @param {string} table
    * @returns {string} Resource name string.
    */
-  tablePath(project: string, instance: string, table: string) {
+  tablePath(project:string,instance:string,table:string) {
     return this.pathTemplates.tablePathTemplate.render({
       project: project,
       instance: instance,
@@ -3449,6 +3121,7 @@ export class BigtableInstanceAdminClient {
       return this.bigtableInstanceAdminStub.then(stub => {
         this._terminated = true;
         stub.close();
+        this.locationsClient.close();
         this.operationsClient.close();
       });
     }
diff --git a/src/v2/bigtable_table_admin_client.ts b/src/v2/bigtable_table_admin_client.ts
index 67488a2f7..8b1b843dd 100644
--- a/src/v2/bigtable_table_admin_client.ts
+++ b/src/v2/bigtable_table_admin_client.ts
@@ -18,18 +18,10 @@
 
 /* global window */
 import * as gax from 'google-gax';
-import {
-  Callback,
-  CallOptions,
-  Descriptors,
-  ClientOptions,
-  LROperation,
-  PaginationCallback,
-  GaxCall,
-} from 'google-gax';
-
-import {Transform} from 'stream';
-import {RequestType} from 'google-gax/build/src/apitypes';
+import {Callback, CallOptions, Descriptors, ClientOptions, GrpcClientOptions, LROperation, PaginationCallback, GaxCall, LocationsClient, LocationProtos} from 'google-gax';
+
+import { Transform } from 'stream';
+import { RequestType } from 'google-gax/build/src/apitypes';
 import * as protos from '../../protos/protos';
 import jsonProtos = require('../../protos/protos.json');
 /**
@@ -38,7 +30,7 @@ import jsonProtos = require('../../protos/protos.json');
  * This file defines retry strategy and timeouts for all API methods in this library.
  */
 import * as gapicConfig from './bigtable_table_admin_client_config.json';
-import {operationsProtos} from 'google-gax';
+import { operationsProtos } from 'google-gax';
 const version = require('../../../package.json').version;
 
 /**
@@ -67,6 +59,7 @@ export class BigtableTableAdminClient {
   };
   warn: (code: string, message: string, warnType?: string) => void;
   innerApiCalls: {[name: string]: Function};
+  locationsClient: LocationsClient;
   pathTemplates: {[name: string]: gax.PathTemplate};
   operationsClient: gax.OperationsClient;
   bigtableTableAdminStub?: Promise<{[name: string]: Function}>;
@@ -76,7 +69,7 @@ export class BigtableTableAdminClient {
    *
    * @param {object} [options] - The configuration object.
    * The options accepted by the constructor are described in detail
-   * in [this document](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#creating-the-client-instance).
+   * in [this document](https://github.com/googleapis/gax-nodejs/blob/main/client-libraries.md#creating-the-client-instance).
    * The common options are:
    * @param {object} [options.credentials] - Credentials object.
    * @param {string} [options.credentials.client_email]
@@ -99,25 +92,19 @@ export class BigtableTableAdminClient {
    *     API remote host.
    * @param {gax.ClientConfig} [options.clientConfig] - Client configuration override.
    *     Follows the structure of {@link gapicConfig}.
-   * @param {boolean} [options.fallback] - Use HTTP fallback mode.
-   *     In fallback mode, a special browser-compatible transport implementation is used
-   *     instead of gRPC transport. In browser context (if the `window` object is defined)
-   *     the fallback mode is enabled automatically; set `options.fallback` to `false`
-   *     if you need to override this behavior.
+   * @param {boolean | "rest"} [options.fallback] - Use HTTP fallback mode.
+   *     Pass "rest" to use HTTP/1.1 REST API instead of gRPC.
+   *     For more information, please check the
+   *     {@link https://github.com/googleapis/gax-nodejs/blob/main/client-libraries.md#http11-rest-api-mode documentation}.
    */
   constructor(opts?: ClientOptions) {
     // Ensure that options include all the required fields.
     const staticMembers = this.constructor as typeof BigtableTableAdminClient;
-    const servicePath =
-      opts?.servicePath || opts?.apiEndpoint || staticMembers.servicePath;
-    this._providedCustomServicePath = !!(
-      opts?.servicePath || opts?.apiEndpoint
-    );
+    const servicePath = opts?.servicePath || opts?.apiEndpoint || staticMembers.servicePath;
+    this._providedCustomServicePath = !!(opts?.servicePath || opts?.apiEndpoint);
     const port = opts?.port || staticMembers.port;
     const clientConfig = opts?.clientConfig ?? {};
-    const fallback =
-      opts?.fallback ??
-      (typeof window !== 'undefined' && typeof window?.fetch === 'function');
+    const fallback = opts?.fallback ?? (typeof window !== 'undefined' && typeof window?.fetch === 'function');
     opts = Object.assign({servicePath, port, clientConfig, fallback}, opts);
 
     // If scopes are unset in options and we're connecting to a non-default endpoint, set scopes just in case.
@@ -135,7 +122,7 @@ export class BigtableTableAdminClient {
     this._opts = opts;
 
     // Save the auth object to the client, for use by other methods.
-    this.auth = this._gaxGrpc.auth as gax.GoogleAuth;
+    this.auth = (this._gaxGrpc.auth as gax.GoogleAuth);
 
     // Set useJWTAccessWithScope on the auth object.
     this.auth.useJWTAccessWithScope = true;
@@ -147,9 +134,14 @@ export class BigtableTableAdminClient {
     if (servicePath === staticMembers.servicePath) {
       this.auth.defaultScopes = staticMembers.scopes;
     }
+    this.locationsClient = new LocationsClient(this._gaxGrpc, opts);
+  
 
     // Determine the client header string.
-    const clientHeader = [`gax/${this._gaxModule.version}`, `gapic/${version}`];
+    const clientHeader = [
+      `gax/${this._gaxModule.version}`,
+      `gapic/${version}`,
+    ];
     if (typeof process !== 'undefined' && 'versions' in process) {
       clientHeader.push(`gl-node/${process.versions.node}`);
     } else {
@@ -157,7 +149,7 @@ export class BigtableTableAdminClient {
     }
     if (!opts.fallback) {
       clientHeader.push(`grpc/${this._gaxGrpc.grpcVersion}`);
-    } else if (opts.fallback === 'rest') {
+    } else if (opts.fallback === 'rest' ) {
       clientHeader.push(`rest/${this._gaxGrpc.grpcVersion}`);
     }
     if (opts.libName && opts.libVersion) {
@@ -197,94 +189,83 @@ export class BigtableTableAdminClient {
     // (e.g. 50 results at a time, with tokens to get subsequent
     // pages). Denote the keys used for pagination and results.
     this.descriptors.page = {
-      listTables: new this._gaxModule.PageDescriptor(
-        'pageToken',
-        'nextPageToken',
-        'tables'
-      ),
-      listSnapshots: new this._gaxModule.PageDescriptor(
-        'pageToken',
-        'nextPageToken',
-        'snapshots'
-      ),
-      listBackups: new this._gaxModule.PageDescriptor(
-        'pageToken',
-        'nextPageToken',
-        'backups'
-      ),
+      listTables:
+          new this._gaxModule.PageDescriptor('pageToken', 'nextPageToken', 'tables'),
+      listSnapshots:
+          new this._gaxModule.PageDescriptor('pageToken', 'nextPageToken', 'snapshots'),
+      listBackups:
+          new this._gaxModule.PageDescriptor('pageToken', 'nextPageToken', 'backups')
     };
 
     const protoFilesRoot = this._gaxModule.protobuf.Root.fromJSON(jsonProtos);
-
     // This API contains "long-running operations", which return a
     // an Operation object that allows for tracking of the operation,
     // rather than holding a request open.
-
-    this.operationsClient = this._gaxModule
-      .lro({
-        auth: this.auth,
-        grpc: 'grpc' in this._gaxGrpc ? this._gaxGrpc.grpc : undefined,
-      })
-      .operationsClient(opts);
+    const lroOptions: GrpcClientOptions = {
+      auth: this.auth,
+      grpc: 'grpc' in this._gaxGrpc ? this._gaxGrpc.grpc : undefined
+    };
+    if (opts.fallback === 'rest') {
+      lroOptions.protoJson = protoFilesRoot;
+      lroOptions.httpRules = [{selector: 'google.cloud.location.Locations.GetLocation',get: '/v2/{name=projects/*/locations/*}',},{selector: 'google.cloud.location.Locations.ListLocations',get: '/v2/{name=projects/*}/locations',},{selector: 'google.longrunning.Operations.CancelOperation',post: '/v2/{name=operations/**}:cancel',},{selector: 'google.longrunning.Operations.DeleteOperation',delete: '/v2/{name=operations/**}',},{selector: 'google.longrunning.Operations.GetOperation',get: '/v2/{name=operations/**}',},{selector: 'google.longrunning.Operations.ListOperations',get: '/v2/{name=operations/projects/**}/operations',}];
+    }
+    this.operationsClient = this._gaxModule.lro(lroOptions).operationsClient(opts);
     const createTableFromSnapshotResponse = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.Table'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.Table') as gax.protobuf.Type;
     const createTableFromSnapshotMetadata = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.CreateTableFromSnapshotMetadata'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.CreateTableFromSnapshotMetadata') as gax.protobuf.Type;
+    const undeleteTableResponse = protoFilesRoot.lookup(
+      '.google.bigtable.admin.v2.Table') as gax.protobuf.Type;
+    const undeleteTableMetadata = protoFilesRoot.lookup(
+      '.google.bigtable.admin.v2.UndeleteTableMetadata') as gax.protobuf.Type;
     const snapshotTableResponse = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.Snapshot'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.Snapshot') as gax.protobuf.Type;
     const snapshotTableMetadata = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.SnapshotTableMetadata'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.SnapshotTableMetadata') as gax.protobuf.Type;
     const createBackupResponse = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.Backup'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.Backup') as gax.protobuf.Type;
     const createBackupMetadata = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.CreateBackupMetadata'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.CreateBackupMetadata') as gax.protobuf.Type;
     const restoreTableResponse = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.Table'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.Table') as gax.protobuf.Type;
     const restoreTableMetadata = protoFilesRoot.lookup(
-      '.google.bigtable.admin.v2.RestoreTableMetadata'
-    ) as gax.protobuf.Type;
+      '.google.bigtable.admin.v2.RestoreTableMetadata') as gax.protobuf.Type;
+    const copyBackupResponse = protoFilesRoot.lookup(
+      '.google.bigtable.admin.v2.Backup') as gax.protobuf.Type;
+    const copyBackupMetadata = protoFilesRoot.lookup(
+      '.google.bigtable.admin.v2.CopyBackupMetadata') as gax.protobuf.Type;
 
     this.descriptors.longrunning = {
       createTableFromSnapshot: new this._gaxModule.LongrunningDescriptor(
         this.operationsClient,
-        createTableFromSnapshotResponse.decode.bind(
-          createTableFromSnapshotResponse
-        ),
-        createTableFromSnapshotMetadata.decode.bind(
-          createTableFromSnapshotMetadata
-        )
-      ),
+        createTableFromSnapshotResponse.decode.bind(createTableFromSnapshotResponse),
+        createTableFromSnapshotMetadata.decode.bind(createTableFromSnapshotMetadata)),
+      undeleteTable: new this._gaxModule.LongrunningDescriptor(
+        this.operationsClient,
+        undeleteTableResponse.decode.bind(undeleteTableResponse),
+        undeleteTableMetadata.decode.bind(undeleteTableMetadata)),
       snapshotTable: new this._gaxModule.LongrunningDescriptor(
         this.operationsClient,
         snapshotTableResponse.decode.bind(snapshotTableResponse),
-        snapshotTableMetadata.decode.bind(snapshotTableMetadata)
-      ),
+        snapshotTableMetadata.decode.bind(snapshotTableMetadata)),
       createBackup: new this._gaxModule.LongrunningDescriptor(
         this.operationsClient,
         createBackupResponse.decode.bind(createBackupResponse),
-        createBackupMetadata.decode.bind(createBackupMetadata)
-      ),
+        createBackupMetadata.decode.bind(createBackupMetadata)),
       restoreTable: new this._gaxModule.LongrunningDescriptor(
         this.operationsClient,
         restoreTableResponse.decode.bind(restoreTableResponse),
-        restoreTableMetadata.decode.bind(restoreTableMetadata)
-      ),
+        restoreTableMetadata.decode.bind(restoreTableMetadata)),
+      copyBackup: new this._gaxModule.LongrunningDescriptor(
+        this.operationsClient,
+        copyBackupResponse.decode.bind(copyBackupResponse),
+        copyBackupMetadata.decode.bind(copyBackupMetadata))
     };
 
     // Put together the default options sent with requests.
     this._defaults = this._gaxGrpc.constructSettings(
-      'google.bigtable.admin.v2.BigtableTableAdmin',
-      gapicConfig as gax.ClientConfig,
-      opts.clientConfig || {},
-      {'x-goog-api-client': clientHeader.join(' ')}
-    );
+        'google.bigtable.admin.v2.BigtableTableAdmin', gapicConfig as gax.ClientConfig,
+        opts.clientConfig || {}, {'x-goog-api-client': clientHeader.join(' ')});
 
     // Set up a dictionary of "inner API calls"; the core implementation
     // of calling the API is handled in `google-gax`, with this code
@@ -315,56 +296,28 @@ export class BigtableTableAdminClient {
     // Put together the "service stub" for
     // google.bigtable.admin.v2.BigtableTableAdmin.
     this.bigtableTableAdminStub = this._gaxGrpc.createStub(
-      this._opts.fallback
-        ? (this._protos as protobuf.Root).lookupService(
-            'google.bigtable.admin.v2.BigtableTableAdmin'
-          )
-        : // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        this._opts.fallback ?
+          (this._protos as protobuf.Root).lookupService('google.bigtable.admin.v2.BigtableTableAdmin') :
+          // eslint-disable-next-line @typescript-eslint/no-explicit-any
           (this._protos as any).google.bigtable.admin.v2.BigtableTableAdmin,
-      this._opts,
-      this._providedCustomServicePath
-    ) as Promise<{[method: string]: Function}>;
+        this._opts, this._providedCustomServicePath) as Promise<{[method: string]: Function}>;
 
     // Iterate over each of the methods that the service provides
     // and create an API call method for each.
-    const bigtableTableAdminStubMethods = [
-      'createTable',
-      'createTableFromSnapshot',
-      'listTables',
-      'getTable',
-      'deleteTable',
-      'modifyColumnFamilies',
-      'dropRowRange',
-      'generateConsistencyToken',
-      'checkConsistency',
-      'snapshotTable',
-      'getSnapshot',
-      'listSnapshots',
-      'deleteSnapshot',
-      'createBackup',
-      'getBackup',
-      'updateBackup',
-      'deleteBackup',
-      'listBackups',
-      'restoreTable',
-      'getIamPolicy',
-      'setIamPolicy',
-      'testIamPermissions',
-    ];
+    const bigtableTableAdminStubMethods =
+        ['createTable', 'createTableFromSnapshot', 'listTables', 'getTable', 'deleteTable', 'undeleteTable', 'modifyColumnFamilies', 'dropRowRange', 'generateConsistencyToken', 'checkConsistency', 'snapshotTable', 'getSnapshot', 'listSnapshots', 'deleteSnapshot', 'createBackup', 'getBackup', 'updateBackup', 'deleteBackup', 'listBackups', 'restoreTable', 'copyBackup', 'getIamPolicy', 'setIamPolicy', 'testIamPermissions'];
     for (const methodName of bigtableTableAdminStubMethods) {
       const callPromise = this.bigtableTableAdminStub.then(
-        stub =>
-          (...args: Array<{}>) => {
-            if (this._terminated) {
-              return Promise.reject('The client has already been closed.');
-            }
-            const func = stub[methodName];
-            return func.apply(stub, args);
-          },
-        (err: Error | null | undefined) => () => {
+        stub => (...args: Array<{}>) => {
+          if (this._terminated) {
+            return Promise.reject('The client has already been closed.');
+          }
+          const func = stub[methodName];
+          return func.apply(stub, args);
+        },
+        (err: Error|null|undefined) => () => {
           throw err;
-        }
-      );
+        });
 
       const descriptor =
         this.descriptors.page[methodName] ||
@@ -419,7 +372,7 @@ export class BigtableTableAdminClient {
       'https://www.googleapis.com/auth/cloud-bigtable.admin',
       'https://www.googleapis.com/auth/cloud-bigtable.admin.table',
       'https://www.googleapis.com/auth/cloud-platform',
-      'https://www.googleapis.com/auth/cloud-platform.read-only',
+      'https://www.googleapis.com/auth/cloud-platform.read-only'
     ];
   }
 
@@ -429,9 +382,8 @@ export class BigtableTableAdminClient {
    * Return the project ID used by this class.
    * @returns {Promise} A promise that resolves to string containing the project ID.
    */
-  getProjectId(
-    callback?: Callback<string, undefined, undefined>
-  ): Promise<string> | void {
+  getProjectId(callback?: Callback<string, undefined, undefined>):
+      Promise<string>|void {
     if (callback) {
       this.auth.getProjectId(callback);
       return;
@@ -442,2255 +394,2034 @@ export class BigtableTableAdminClient {
   // -------------------
   // -- Service calls --
   // -------------------
-  /**
-   * Creates a new table in the specified instance.
-   * The table can be created with a full set of initial column families,
-   * specified in the request.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the instance in which to create the table.
-   *   Values are of the form `projects/{project}/instances/{instance}`.
-   * @param {string} request.tableId
-   *   Required. The name by which the new table should be referred to within the parent
-   *   instance, e.g., `foobar` rather than `{parent}/tables/foobar`.
-   *   Maximum 50 characters.
-   * @param {google.bigtable.admin.v2.Table} request.table
-   *   Required. The Table to create.
-   * @param {number[]} request.initialSplits
-   *   The optional list of row keys that will be used to initially split the
-   *   table into several tablets (tablets are similar to HBase regions).
-   *   Given two split keys, `s1` and `s2`, three tablets will be created,
-   *   spanning the key ranges: `[, s1), [s1, s2), [s2, )`.
-   *
-   *   Example:
-   *
-   *   * Row keys := `["a", "apple", "custom", "customer_1", "customer_2",`
-   *                  `"other", "zz"]`
-   *   * initial_split_keys := `["apple", "customer_1", "customer_2", "other"]`
-   *   * Key assignment:
-   *       - Tablet 1 `[, apple)                => {"a"}.`
-   *       - Tablet 2 `[apple, customer_1)      => {"apple", "custom"}.`
-   *       - Tablet 3 `[customer_1, customer_2) => {"customer_1"}.`
-   *       - Tablet 4 `[customer_2, other)      => {"customer_2"}.`
-   *       - Tablet 5 `[other, )                => {"other", "zz"}.`
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Table]{@link google.bigtable.admin.v2.Table}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.create_table.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CreateTable_async
-   */
+/**
+ * Creates a new table in the specified instance.
+ * The table can be created with a full set of initial column families,
+ * specified in the request.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the instance in which to create the table.
+ *   Values are of the form `projects/{project}/instances/{instance}`.
+ * @param {string} request.tableId
+ *   Required. The name by which the new table should be referred to within the
+ *   parent instance, e.g., `foobar` rather than `{parent}/tables/foobar`.
+ *   Maximum 50 characters.
+ * @param {google.bigtable.admin.v2.Table} request.table
+ *   Required. The Table to create.
+ * @param {number[]} request.initialSplits
+ *   The optional list of row keys that will be used to initially split the
+ *   table into several tablets (tablets are similar to HBase regions).
+ *   Given two split keys, `s1` and `s2`, three tablets will be created,
+ *   spanning the key ranges: `[, s1), [s1, s2), [s2, )`.
+ *
+ *   Example:
+ *
+ *   * Row keys := `["a", "apple", "custom", "customer_1", "customer_2",`
+ *                  `"other", "zz"]`
+ *   * initial_split_keys := `["apple", "customer_1", "customer_2", "other"]`
+ *   * Key assignment:
+ *       - Tablet 1 `[, apple)                => {"a"}.`
+ *       - Tablet 2 `[apple, customer_1)      => {"apple", "custom"}.`
+ *       - Tablet 3 `[customer_1, customer_2) => {"customer_1"}.`
+ *       - Tablet 4 `[customer_2, other)      => {"customer_2"}.`
+ *       - Tablet 5 `[other, )                => {"other", "zz"}.`
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Table]{@link google.bigtable.admin.v2.Table}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.create_table.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CreateTable_async
+ */
   createTable(
-    request?: protos.google.bigtable.admin.v2.ICreateTableRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ITable,
-      protos.google.bigtable.admin.v2.ICreateTableRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.ICreateTableRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.ITable,
+        protos.google.bigtable.admin.v2.ICreateTableRequest|undefined, {}|undefined
+      ]>;
   createTable(
-    request: protos.google.bigtable.admin.v2.ICreateTableRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.ITable,
-      protos.google.bigtable.admin.v2.ICreateTableRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICreateTableRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.ITable,
+          protos.google.bigtable.admin.v2.ICreateTableRequest|null|undefined,
+          {}|null|undefined>): void;
   createTable(
-    request: protos.google.bigtable.admin.v2.ICreateTableRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.ITable,
-      protos.google.bigtable.admin.v2.ICreateTableRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICreateTableRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.ITable,
+          protos.google.bigtable.admin.v2.ICreateTableRequest|null|undefined,
+          {}|null|undefined>): void;
   createTable(
-    request?: protos.google.bigtable.admin.v2.ICreateTableRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.ICreateTableRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.ITable,
-          | protos.google.bigtable.admin.v2.ICreateTableRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.ITable,
-      protos.google.bigtable.admin.v2.ICreateTableRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ITable,
-      protos.google.bigtable.admin.v2.ICreateTableRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.ICreateTableRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.ITable,
+          protos.google.bigtable.admin.v2.ICreateTableRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.ITable,
+        protos.google.bigtable.admin.v2.ICreateTableRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
     return this.innerApiCalls.createTable(request, options, callback);
   }
-  /**
-   * Gets metadata information about the specified table.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the requested table.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/tables/{table}`.
-   * @param {google.bigtable.admin.v2.Table.View} request.view
-   *   The view to be applied to the returned table's fields.
-   *   Defaults to `SCHEMA_VIEW` if unspecified.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Table]{@link google.bigtable.admin.v2.Table}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.get_table.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_GetTable_async
-   */
+/**
+ * Gets metadata information about the specified table.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the requested table.
+ *   Values are of the form
+ *   `projects/{project}/instances/{instance}/tables/{table}`.
+ * @param {google.bigtable.admin.v2.Table.View} request.view
+ *   The view to be applied to the returned table's fields.
+ *   Defaults to `SCHEMA_VIEW` if unspecified.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Table]{@link google.bigtable.admin.v2.Table}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.get_table.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_GetTable_async
+ */
   getTable(
-    request?: protos.google.bigtable.admin.v2.IGetTableRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ITable,
-      protos.google.bigtable.admin.v2.IGetTableRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IGetTableRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.ITable,
+        protos.google.bigtable.admin.v2.IGetTableRequest|undefined, {}|undefined
+      ]>;
   getTable(
-    request: protos.google.bigtable.admin.v2.IGetTableRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.ITable,
-      protos.google.bigtable.admin.v2.IGetTableRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGetTableRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.ITable,
+          protos.google.bigtable.admin.v2.IGetTableRequest|null|undefined,
+          {}|null|undefined>): void;
   getTable(
-    request: protos.google.bigtable.admin.v2.IGetTableRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.ITable,
-      protos.google.bigtable.admin.v2.IGetTableRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGetTableRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.ITable,
+          protos.google.bigtable.admin.v2.IGetTableRequest|null|undefined,
+          {}|null|undefined>): void;
   getTable(
-    request?: protos.google.bigtable.admin.v2.IGetTableRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IGetTableRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.ITable,
-          protos.google.bigtable.admin.v2.IGetTableRequest | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.ITable,
-      protos.google.bigtable.admin.v2.IGetTableRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ITable,
-      protos.google.bigtable.admin.v2.IGetTableRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IGetTableRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.ITable,
+          protos.google.bigtable.admin.v2.IGetTableRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.ITable,
+        protos.google.bigtable.admin.v2.IGetTableRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.getTable(request, options, callback);
   }
-  /**
-   * Permanently deletes a specified table and all of its data.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the table to be deleted.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/tables/{table}`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.delete_table.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_DeleteTable_async
-   */
+/**
+ * Permanently deletes a specified table and all of its data.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the table to be deleted.
+ *   Values are of the form
+ *   `projects/{project}/instances/{instance}/tables/{table}`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.delete_table.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_DeleteTable_async
+ */
   deleteTable(
-    request?: protos.google.bigtable.admin.v2.IDeleteTableRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteTableRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IDeleteTableRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDeleteTableRequest|undefined, {}|undefined
+      ]>;
   deleteTable(
-    request: protos.google.bigtable.admin.v2.IDeleteTableRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteTableRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDeleteTableRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteTableRequest|null|undefined,
+          {}|null|undefined>): void;
   deleteTable(
-    request: protos.google.bigtable.admin.v2.IDeleteTableRequest,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteTableRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDeleteTableRequest,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteTableRequest|null|undefined,
+          {}|null|undefined>): void;
   deleteTable(
-    request?: protos.google.bigtable.admin.v2.IDeleteTableRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IDeleteTableRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.protobuf.IEmpty,
-          | protos.google.bigtable.admin.v2.IDeleteTableRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteTableRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteTableRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IDeleteTableRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteTableRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDeleteTableRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.deleteTable(request, options, callback);
   }
-  /**
-   * Performs a series of column family modifications on the specified table.
-   * Either all or none of the modifications will occur before this method
-   * returns, but data requests received prior to that point may see a table
-   * where only some modifications have taken effect.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the table whose families should be modified.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/tables/{table}`.
-   * @param {number[]} request.modifications
-   *   Required. Modifications to be atomically applied to the specified table's families.
-   *   Entries are applied in order, meaning that earlier modifications can be
-   *   masked by later ones (in the case of repeated updates to the same family,
-   *   for example).
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Table]{@link google.bigtable.admin.v2.Table}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.modify_column_families.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_ModifyColumnFamilies_async
-   */
+/**
+ * Performs a series of column family modifications on the specified table.
+ * Either all or none of the modifications will occur before this method
+ * returns, but data requests received prior to that point may see a table
+ * where only some modifications have taken effect.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the table whose families should be modified.
+ *   Values are of the form
+ *   `projects/{project}/instances/{instance}/tables/{table}`.
+ * @param {number[]} request.modifications
+ *   Required. Modifications to be atomically applied to the specified table's
+ *   families. Entries are applied in order, meaning that earlier modifications
+ *   can be masked by later ones (in the case of repeated updates to the same
+ *   family, for example).
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Table]{@link google.bigtable.admin.v2.Table}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.modify_column_families.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_ModifyColumnFamilies_async
+ */
   modifyColumnFamilies(
-    request?: protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ITable,
-      protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.ITable,
+        protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest|undefined, {}|undefined
+      ]>;
   modifyColumnFamilies(
-    request: protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.ITable,
-      | protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.ITable,
+          protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest|null|undefined,
+          {}|null|undefined>): void;
   modifyColumnFamilies(
-    request: protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.ITable,
-      | protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.ITable,
+          protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest|null|undefined,
+          {}|null|undefined>): void;
   modifyColumnFamilies(
-    request?: protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.ITable,
-          | protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.ITable,
-      | protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ITable,
-      protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.ITable,
+          protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.ITable,
+        protos.google.bigtable.admin.v2.IModifyColumnFamiliesRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.modifyColumnFamilies(request, options, callback);
   }
-  /**
-   * Permanently drop/delete a row range from a specified table. The request can
-   * specify whether to delete all rows in a table, or only those that match a
-   * particular prefix.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the table on which to drop a range of rows.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/tables/{table}`.
-   * @param {Buffer} request.rowKeyPrefix
-   *   Delete all rows that start with this row key prefix. Prefix cannot be
-   *   zero length.
-   * @param {boolean} request.deleteAllDataFromTable
-   *   Delete all rows in the table. Setting this to false is a no-op.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.drop_row_range.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_DropRowRange_async
-   */
+/**
+ * Permanently drop/delete a row range from a specified table. The request can
+ * specify whether to delete all rows in a table, or only those that match a
+ * particular prefix.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the table on which to drop a range of rows.
+ *   Values are of the form
+ *   `projects/{project}/instances/{instance}/tables/{table}`.
+ * @param {Buffer} request.rowKeyPrefix
+ *   Delete all rows that start with this row key prefix. Prefix cannot be
+ *   zero length.
+ * @param {boolean} request.deleteAllDataFromTable
+ *   Delete all rows in the table. Setting this to false is a no-op.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.drop_row_range.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_DropRowRange_async
+ */
   dropRowRange(
-    request?: protos.google.bigtable.admin.v2.IDropRowRangeRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDropRowRangeRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IDropRowRangeRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDropRowRangeRequest|undefined, {}|undefined
+      ]>;
   dropRowRange(
-    request: protos.google.bigtable.admin.v2.IDropRowRangeRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDropRowRangeRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDropRowRangeRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDropRowRangeRequest|null|undefined,
+          {}|null|undefined>): void;
   dropRowRange(
-    request: protos.google.bigtable.admin.v2.IDropRowRangeRequest,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDropRowRangeRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDropRowRangeRequest,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDropRowRangeRequest|null|undefined,
+          {}|null|undefined>): void;
   dropRowRange(
-    request?: protos.google.bigtable.admin.v2.IDropRowRangeRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IDropRowRangeRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.protobuf.IEmpty,
-          | protos.google.bigtable.admin.v2.IDropRowRangeRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDropRowRangeRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDropRowRangeRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IDropRowRangeRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDropRowRangeRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDropRowRangeRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.dropRowRange(request, options, callback);
   }
-  /**
-   * Generates a consistency token for a Table, which can be used in
-   * CheckConsistency to check whether mutations to the table that finished
-   * before this call started have been replicated. The tokens will be available
-   * for 90 days.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the Table for which to create a consistency token.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/tables/{table}`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [GenerateConsistencyTokenResponse]{@link google.bigtable.admin.v2.GenerateConsistencyTokenResponse}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.generate_consistency_token.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_GenerateConsistencyToken_async
-   */
+/**
+ * Generates a consistency token for a Table, which can be used in
+ * CheckConsistency to check whether mutations to the table that finished
+ * before this call started have been replicated. The tokens will be available
+ * for 90 days.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the Table for which to create a consistency
+ *   token. Values are of the form
+ *   `projects/{project}/instances/{instance}/tables/{table}`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [GenerateConsistencyTokenResponse]{@link google.bigtable.admin.v2.GenerateConsistencyTokenResponse}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.generate_consistency_token.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_GenerateConsistencyToken_async
+ */
   generateConsistencyToken(
-    request?: protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IGenerateConsistencyTokenResponse,
-      (
-        | protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest
-        | undefined
-      ),
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.IGenerateConsistencyTokenResponse,
+        protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest|undefined, {}|undefined
+      ]>;
   generateConsistencyToken(
-    request: protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IGenerateConsistencyTokenResponse,
-      | protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IGenerateConsistencyTokenResponse,
+          protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest|null|undefined,
+          {}|null|undefined>): void;
   generateConsistencyToken(
-    request: protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IGenerateConsistencyTokenResponse,
-      | protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IGenerateConsistencyTokenResponse,
+          protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest|null|undefined,
+          {}|null|undefined>): void;
   generateConsistencyToken(
-    request?: protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.IGenerateConsistencyTokenResponse,
-          | protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.IGenerateConsistencyTokenResponse,
-      | protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IGenerateConsistencyTokenResponse,
-      (
-        | protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest
-        | undefined
-      ),
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.IGenerateConsistencyTokenResponse,
+          protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.IGenerateConsistencyTokenResponse,
+        protos.google.bigtable.admin.v2.IGenerateConsistencyTokenRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
-    return this.innerApiCalls.generateConsistencyToken(
-      request,
-      options,
-      callback
-    );
+    return this.innerApiCalls.generateConsistencyToken(request, options, callback);
   }
-  /**
-   * Checks replication consistency based on a consistency token, that is, if
-   * replication has caught up based on the conditions specified in the token
-   * and the check request.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the Table for which to check replication consistency.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/tables/{table}`.
-   * @param {string} request.consistencyToken
-   *   Required. The token created using GenerateConsistencyToken for the Table.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [CheckConsistencyResponse]{@link google.bigtable.admin.v2.CheckConsistencyResponse}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.check_consistency.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CheckConsistency_async
-   */
+/**
+ * Checks replication consistency based on a consistency token, that is, if
+ * replication has caught up based on the conditions specified in the token
+ * and the check request.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the Table for which to check replication
+ *   consistency. Values are of the form
+ *   `projects/{project}/instances/{instance}/tables/{table}`.
+ * @param {string} request.consistencyToken
+ *   Required. The token created using GenerateConsistencyToken for the Table.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [CheckConsistencyResponse]{@link google.bigtable.admin.v2.CheckConsistencyResponse}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.check_consistency.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CheckConsistency_async
+ */
   checkConsistency(
-    request?: protos.google.bigtable.admin.v2.ICheckConsistencyRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ICheckConsistencyResponse,
-      protos.google.bigtable.admin.v2.ICheckConsistencyRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.ICheckConsistencyRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.ICheckConsistencyResponse,
+        protos.google.bigtable.admin.v2.ICheckConsistencyRequest|undefined, {}|undefined
+      ]>;
   checkConsistency(
-    request: protos.google.bigtable.admin.v2.ICheckConsistencyRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.ICheckConsistencyResponse,
-      | protos.google.bigtable.admin.v2.ICheckConsistencyRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICheckConsistencyRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.ICheckConsistencyResponse,
+          protos.google.bigtable.admin.v2.ICheckConsistencyRequest|null|undefined,
+          {}|null|undefined>): void;
   checkConsistency(
-    request: protos.google.bigtable.admin.v2.ICheckConsistencyRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.ICheckConsistencyResponse,
-      | protos.google.bigtable.admin.v2.ICheckConsistencyRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICheckConsistencyRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.ICheckConsistencyResponse,
+          protos.google.bigtable.admin.v2.ICheckConsistencyRequest|null|undefined,
+          {}|null|undefined>): void;
   checkConsistency(
-    request?: protos.google.bigtable.admin.v2.ICheckConsistencyRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.ICheckConsistencyRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.ICheckConsistencyResponse,
-          | protos.google.bigtable.admin.v2.ICheckConsistencyRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.ICheckConsistencyResponse,
-      | protos.google.bigtable.admin.v2.ICheckConsistencyRequest
-      | null
-      | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ICheckConsistencyResponse,
-      protos.google.bigtable.admin.v2.ICheckConsistencyRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.ICheckConsistencyRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.ICheckConsistencyResponse,
+          protos.google.bigtable.admin.v2.ICheckConsistencyRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.ICheckConsistencyResponse,
+        protos.google.bigtable.admin.v2.ICheckConsistencyRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.checkConsistency(request, options, callback);
   }
-  /**
-   * Gets metadata information about the specified snapshot.
-   *
-   * Note: This is a private alpha release of Cloud Bigtable snapshots. This
-   * feature is not currently available to most Cloud Bigtable customers. This
-   * feature might be changed in backward-incompatible ways and is not
-   * recommended for production use. It is not subject to any SLA or deprecation
-   * policy.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the requested snapshot.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}/snapshots/{snapshot}`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Snapshot]{@link google.bigtable.admin.v2.Snapshot}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.get_snapshot.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_GetSnapshot_async
-   */
+/**
+ * Gets metadata information about the specified snapshot.
+ *
+ * Note: This is a private alpha release of Cloud Bigtable snapshots. This
+ * feature is not currently available to most Cloud Bigtable customers. This
+ * feature might be changed in backward-incompatible ways and is not
+ * recommended for production use. It is not subject to any SLA or deprecation
+ * policy.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the requested snapshot.
+ *   Values are of the form
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}/snapshots/{snapshot}`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Snapshot]{@link google.bigtable.admin.v2.Snapshot}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.get_snapshot.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_GetSnapshot_async
+ */
   getSnapshot(
-    request?: protos.google.bigtable.admin.v2.IGetSnapshotRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ISnapshot,
-      protos.google.bigtable.admin.v2.IGetSnapshotRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IGetSnapshotRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.ISnapshot,
+        protos.google.bigtable.admin.v2.IGetSnapshotRequest|undefined, {}|undefined
+      ]>;
   getSnapshot(
-    request: protos.google.bigtable.admin.v2.IGetSnapshotRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.ISnapshot,
-      protos.google.bigtable.admin.v2.IGetSnapshotRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGetSnapshotRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.ISnapshot,
+          protos.google.bigtable.admin.v2.IGetSnapshotRequest|null|undefined,
+          {}|null|undefined>): void;
   getSnapshot(
-    request: protos.google.bigtable.admin.v2.IGetSnapshotRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.ISnapshot,
-      protos.google.bigtable.admin.v2.IGetSnapshotRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGetSnapshotRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.ISnapshot,
+          protos.google.bigtable.admin.v2.IGetSnapshotRequest|null|undefined,
+          {}|null|undefined>): void;
   getSnapshot(
-    request?: protos.google.bigtable.admin.v2.IGetSnapshotRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IGetSnapshotRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.ISnapshot,
-          | protos.google.bigtable.admin.v2.IGetSnapshotRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.ISnapshot,
-      protos.google.bigtable.admin.v2.IGetSnapshotRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ISnapshot,
-      protos.google.bigtable.admin.v2.IGetSnapshotRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IGetSnapshotRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.ISnapshot,
+          protos.google.bigtable.admin.v2.IGetSnapshotRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.ISnapshot,
+        protos.google.bigtable.admin.v2.IGetSnapshotRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.getSnapshot(request, options, callback);
   }
-  /**
-   * Permanently deletes the specified snapshot.
-   *
-   * Note: This is a private alpha release of Cloud Bigtable snapshots. This
-   * feature is not currently available to most Cloud Bigtable customers. This
-   * feature might be changed in backward-incompatible ways and is not
-   * recommended for production use. It is not subject to any SLA or deprecation
-   * policy.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the snapshot to be deleted.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}/snapshots/{snapshot}`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.delete_snapshot.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_DeleteSnapshot_async
-   */
+/**
+ * Permanently deletes the specified snapshot.
+ *
+ * Note: This is a private alpha release of Cloud Bigtable snapshots. This
+ * feature is not currently available to most Cloud Bigtable customers. This
+ * feature might be changed in backward-incompatible ways and is not
+ * recommended for production use. It is not subject to any SLA or deprecation
+ * policy.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the snapshot to be deleted.
+ *   Values are of the form
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}/snapshots/{snapshot}`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.delete_snapshot.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_DeleteSnapshot_async
+ */
   deleteSnapshot(
-    request?: protos.google.bigtable.admin.v2.IDeleteSnapshotRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteSnapshotRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IDeleteSnapshotRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDeleteSnapshotRequest|undefined, {}|undefined
+      ]>;
   deleteSnapshot(
-    request: protos.google.bigtable.admin.v2.IDeleteSnapshotRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteSnapshotRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDeleteSnapshotRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteSnapshotRequest|null|undefined,
+          {}|null|undefined>): void;
   deleteSnapshot(
-    request: protos.google.bigtable.admin.v2.IDeleteSnapshotRequest,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteSnapshotRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDeleteSnapshotRequest,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteSnapshotRequest|null|undefined,
+          {}|null|undefined>): void;
   deleteSnapshot(
-    request?: protos.google.bigtable.admin.v2.IDeleteSnapshotRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IDeleteSnapshotRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.protobuf.IEmpty,
-          | protos.google.bigtable.admin.v2.IDeleteSnapshotRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteSnapshotRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteSnapshotRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IDeleteSnapshotRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteSnapshotRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDeleteSnapshotRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.deleteSnapshot(request, options, callback);
   }
-  /**
-   * Gets metadata on a pending or completed Cloud Bigtable Backup.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. Name of the backup.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}/backups/{backup}`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Backup]{@link google.bigtable.admin.v2.Backup}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.get_backup.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_GetBackup_async
-   */
+/**
+ * Gets metadata on a pending or completed Cloud Bigtable Backup.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. Name of the backup.
+ *   Values are of the form
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}/backups/{backup}`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Backup]{@link google.bigtable.admin.v2.Backup}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.get_backup.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_GetBackup_async
+ */
   getBackup(
-    request?: protos.google.bigtable.admin.v2.IGetBackupRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IBackup,
-      protos.google.bigtable.admin.v2.IGetBackupRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IGetBackupRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.IBackup,
+        protos.google.bigtable.admin.v2.IGetBackupRequest|undefined, {}|undefined
+      ]>;
   getBackup(
-    request: protos.google.bigtable.admin.v2.IGetBackupRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IBackup,
-      protos.google.bigtable.admin.v2.IGetBackupRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGetBackupRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IBackup,
+          protos.google.bigtable.admin.v2.IGetBackupRequest|null|undefined,
+          {}|null|undefined>): void;
   getBackup(
-    request: protos.google.bigtable.admin.v2.IGetBackupRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IBackup,
-      protos.google.bigtable.admin.v2.IGetBackupRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IGetBackupRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IBackup,
+          protos.google.bigtable.admin.v2.IGetBackupRequest|null|undefined,
+          {}|null|undefined>): void;
   getBackup(
-    request?: protos.google.bigtable.admin.v2.IGetBackupRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IGetBackupRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.IBackup,
-          protos.google.bigtable.admin.v2.IGetBackupRequest | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.IBackup,
-      protos.google.bigtable.admin.v2.IGetBackupRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IBackup,
-      protos.google.bigtable.admin.v2.IGetBackupRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IGetBackupRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.IBackup,
+          protos.google.bigtable.admin.v2.IGetBackupRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.IBackup,
+        protos.google.bigtable.admin.v2.IGetBackupRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.getBackup(request, options, callback);
   }
-  /**
-   * Updates a pending or completed Cloud Bigtable Backup.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {google.bigtable.admin.v2.Backup} request.backup
-   *   Required. The backup to update. `backup.name`, and the fields to be updated
-   *   as specified by `update_mask` are required. Other fields are ignored.
-   *   Update is only supported for the following fields:
-   *    * `backup.expire_time`.
-   * @param {google.protobuf.FieldMask} request.updateMask
-   *   Required. A mask specifying which fields (e.g. `expire_time`) in the
-   *   Backup resource should be updated. This mask is relative to the Backup
-   *   resource, not to the request message. The field mask must always be
-   *   specified; this prevents any future fields from being erased accidentally
-   *   by clients that do not know about them.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Backup]{@link google.bigtable.admin.v2.Backup}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.update_backup.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_UpdateBackup_async
-   */
+/**
+ * Updates a pending or completed Cloud Bigtable Backup.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {google.bigtable.admin.v2.Backup} request.backup
+ *   Required. The backup to update. `backup.name`, and the fields to be updated
+ *   as specified by `update_mask` are required. Other fields are ignored.
+ *   Update is only supported for the following fields:
+ *    * `backup.expire_time`.
+ * @param {google.protobuf.FieldMask} request.updateMask
+ *   Required. A mask specifying which fields (e.g. `expire_time`) in the
+ *   Backup resource should be updated. This mask is relative to the Backup
+ *   resource, not to the request message. The field mask must always be
+ *   specified; this prevents any future fields from being erased accidentally
+ *   by clients that do not know about them.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Backup]{@link google.bigtable.admin.v2.Backup}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.update_backup.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_UpdateBackup_async
+ */
   updateBackup(
-    request?: protos.google.bigtable.admin.v2.IUpdateBackupRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IBackup,
-      protos.google.bigtable.admin.v2.IUpdateBackupRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IUpdateBackupRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.IBackup,
+        protos.google.bigtable.admin.v2.IUpdateBackupRequest|undefined, {}|undefined
+      ]>;
   updateBackup(
-    request: protos.google.bigtable.admin.v2.IUpdateBackupRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IBackup,
-      protos.google.bigtable.admin.v2.IUpdateBackupRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IUpdateBackupRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IBackup,
+          protos.google.bigtable.admin.v2.IUpdateBackupRequest|null|undefined,
+          {}|null|undefined>): void;
   updateBackup(
-    request: protos.google.bigtable.admin.v2.IUpdateBackupRequest,
-    callback: Callback<
-      protos.google.bigtable.admin.v2.IBackup,
-      protos.google.bigtable.admin.v2.IUpdateBackupRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IUpdateBackupRequest,
+      callback: Callback<
+          protos.google.bigtable.admin.v2.IBackup,
+          protos.google.bigtable.admin.v2.IUpdateBackupRequest|null|undefined,
+          {}|null|undefined>): void;
   updateBackup(
-    request?: protos.google.bigtable.admin.v2.IUpdateBackupRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IUpdateBackupRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.bigtable.admin.v2.IBackup,
-          | protos.google.bigtable.admin.v2.IUpdateBackupRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.bigtable.admin.v2.IBackup,
-      protos.google.bigtable.admin.v2.IUpdateBackupRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IBackup,
-      protos.google.bigtable.admin.v2.IUpdateBackupRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IUpdateBackupRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.bigtable.admin.v2.IBackup,
+          protos.google.bigtable.admin.v2.IUpdateBackupRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.bigtable.admin.v2.IBackup,
+        protos.google.bigtable.admin.v2.IUpdateBackupRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        'backup.name': request.backup!.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'backup.name': request.backup!.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.updateBackup(request, options, callback);
   }
-  /**
-   * Deletes a pending or completed Cloud Bigtable backup.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. Name of the backup to delete.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}/backups/{backup}`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.delete_backup.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_DeleteBackup_async
-   */
+/**
+ * Deletes a pending or completed Cloud Bigtable backup.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. Name of the backup to delete.
+ *   Values are of the form
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}/backups/{backup}`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Empty]{@link google.protobuf.Empty}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.delete_backup.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_DeleteBackup_async
+ */
   deleteBackup(
-    request?: protos.google.bigtable.admin.v2.IDeleteBackupRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteBackupRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IDeleteBackupRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDeleteBackupRequest|undefined, {}|undefined
+      ]>;
   deleteBackup(
-    request: protos.google.bigtable.admin.v2.IDeleteBackupRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteBackupRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDeleteBackupRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteBackupRequest|null|undefined,
+          {}|null|undefined>): void;
   deleteBackup(
-    request: protos.google.bigtable.admin.v2.IDeleteBackupRequest,
-    callback: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteBackupRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IDeleteBackupRequest,
+      callback: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteBackupRequest|null|undefined,
+          {}|null|undefined>): void;
   deleteBackup(
-    request?: protos.google.bigtable.admin.v2.IDeleteBackupRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.bigtable.admin.v2.IDeleteBackupRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.protobuf.IEmpty,
-          | protos.google.bigtable.admin.v2.IDeleteBackupRequest
-          | null
-          | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteBackupRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.protobuf.IEmpty,
-      protos.google.bigtable.admin.v2.IDeleteBackupRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IDeleteBackupRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.protobuf.IEmpty,
+          protos.google.bigtable.admin.v2.IDeleteBackupRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.protobuf.IEmpty,
+        protos.google.bigtable.admin.v2.IDeleteBackupRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.deleteBackup(request, options, callback);
   }
-  /**
-   * Gets the access control policy for a Table or Backup resource.
-   * Returns an empty policy if the resource exists but does not have a policy
-   * set.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.resource
-   *   REQUIRED: The resource for which the policy is being requested.
-   *   See the operation documentation for the appropriate value for this field.
-   * @param {google.iam.v1.GetPolicyOptions} request.options
-   *   OPTIONAL: A `GetPolicyOptions` object for specifying options to
-   *   `GetIamPolicy`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Policy]{@link google.iam.v1.Policy}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.get_iam_policy.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_GetIamPolicy_async
-   */
+/**
+ * Gets the access control policy for a Table resource.
+ * Returns an empty policy if the resource exists but does not have a policy
+ * set.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.resource
+ *   REQUIRED: The resource for which the policy is being requested.
+ *   See the operation documentation for the appropriate value for this field.
+ * @param {google.iam.v1.GetPolicyOptions} request.options
+ *   OPTIONAL: A `GetPolicyOptions` object for specifying options to
+ *   `GetIamPolicy`. This field is only used by Cloud IAM.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Policy]{@link google.iam.v1.Policy}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.get_iam_policy.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_GetIamPolicy_async
+ */
   getIamPolicy(
-    request?: protos.google.iam.v1.IGetIamPolicyRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.IGetIamPolicyRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.iam.v1.IGetIamPolicyRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.iam.v1.IPolicy,
+        protos.google.iam.v1.IGetIamPolicyRequest|undefined, {}|undefined
+      ]>;
   getIamPolicy(
-    request: protos.google.iam.v1.IGetIamPolicyRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.IGetIamPolicyRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.iam.v1.IGetIamPolicyRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.iam.v1.IPolicy,
+          protos.google.iam.v1.IGetIamPolicyRequest|null|undefined,
+          {}|null|undefined>): void;
   getIamPolicy(
-    request: protos.google.iam.v1.IGetIamPolicyRequest,
-    callback: Callback<
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.IGetIamPolicyRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.iam.v1.IGetIamPolicyRequest,
+      callback: Callback<
+          protos.google.iam.v1.IPolicy,
+          protos.google.iam.v1.IGetIamPolicyRequest|null|undefined,
+          {}|null|undefined>): void;
   getIamPolicy(
-    request?: protos.google.iam.v1.IGetIamPolicyRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.iam.v1.IGetIamPolicyRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.iam.v1.IPolicy,
-          protos.google.iam.v1.IGetIamPolicyRequest | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.IGetIamPolicyRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.IGetIamPolicyRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.iam.v1.IGetIamPolicyRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.iam.v1.IPolicy,
+          protos.google.iam.v1.IGetIamPolicyRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.iam.v1.IPolicy,
+        protos.google.iam.v1.IGetIamPolicyRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        resource: request.resource || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'resource': request.resource || '',
+    });
     this.initialize();
     return this.innerApiCalls.getIamPolicy(request, options, callback);
   }
-  /**
-   * Sets the access control policy on a Table or Backup resource.
-   * Replaces any existing policy.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.resource
-   *   REQUIRED: The resource for which the policy is being specified.
-   *   See the operation documentation for the appropriate value for this field.
-   * @param {google.iam.v1.Policy} request.policy
-   *   REQUIRED: The complete policy to be applied to the `resource`. The size of
-   *   the policy is limited to a few 10s of KB. An empty policy is a
-   *   valid policy but certain Cloud Platform services (such as Projects)
-   *   might reject them.
-   * @param {google.protobuf.FieldMask} request.updateMask
-   *   OPTIONAL: A FieldMask specifying which fields of the policy to modify. Only
-   *   the fields in the mask will be modified. If no mask is provided, the
-   *   following default mask is used:
-   *
-   *   `paths: "bindings, etag"`
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [Policy]{@link google.iam.v1.Policy}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.set_iam_policy.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_SetIamPolicy_async
-   */
+/**
+ * Sets the access control policy on a Table resource.
+ * Replaces any existing policy.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.resource
+ *   REQUIRED: The resource for which the policy is being specified.
+ *   See the operation documentation for the appropriate value for this field.
+ * @param {google.iam.v1.Policy} request.policy
+ *   REQUIRED: The complete policy to be applied to the `resource`. The size of
+ *   the policy is limited to a few 10s of KB. An empty policy is a
+ *   valid policy but certain Cloud Platform services (such as Projects)
+ *   might reject them.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [Policy]{@link google.iam.v1.Policy}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.set_iam_policy.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_SetIamPolicy_async
+ */
   setIamPolicy(
-    request?: protos.google.iam.v1.ISetIamPolicyRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.ISetIamPolicyRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.iam.v1.ISetIamPolicyRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.iam.v1.IPolicy,
+        protos.google.iam.v1.ISetIamPolicyRequest|undefined, {}|undefined
+      ]>;
   setIamPolicy(
-    request: protos.google.iam.v1.ISetIamPolicyRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.ISetIamPolicyRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.iam.v1.ISetIamPolicyRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.iam.v1.IPolicy,
+          protos.google.iam.v1.ISetIamPolicyRequest|null|undefined,
+          {}|null|undefined>): void;
   setIamPolicy(
-    request: protos.google.iam.v1.ISetIamPolicyRequest,
-    callback: Callback<
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.ISetIamPolicyRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.iam.v1.ISetIamPolicyRequest,
+      callback: Callback<
+          protos.google.iam.v1.IPolicy,
+          protos.google.iam.v1.ISetIamPolicyRequest|null|undefined,
+          {}|null|undefined>): void;
   setIamPolicy(
-    request?: protos.google.iam.v1.ISetIamPolicyRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.iam.v1.ISetIamPolicyRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.iam.v1.IPolicy,
-          protos.google.iam.v1.ISetIamPolicyRequest | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.ISetIamPolicyRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.iam.v1.IPolicy,
-      protos.google.iam.v1.ISetIamPolicyRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.iam.v1.ISetIamPolicyRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.iam.v1.IPolicy,
+          protos.google.iam.v1.ISetIamPolicyRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.iam.v1.IPolicy,
+        protos.google.iam.v1.ISetIamPolicyRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        resource: request.resource || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'resource': request.resource || '',
+    });
     this.initialize();
     return this.innerApiCalls.setIamPolicy(request, options, callback);
   }
-  /**
-   * Returns permissions that the caller has on the specified Table or Backup resource.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.resource
-   *   REQUIRED: The resource for which the policy detail is being requested.
-   *   See the operation documentation for the appropriate value for this field.
-   * @param {string[]} request.permissions
-   *   The set of permissions to check for the `resource`. Permissions with
-   *   wildcards (such as '*' or 'storage.*') are not allowed. For more
-   *   information see
-   *   [IAM Overview](https://cloud.google.com/iam/docs/overview#permissions).
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing [TestIamPermissionsResponse]{@link google.iam.v1.TestIamPermissionsResponse}.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.test_iam_permissions.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_TestIamPermissions_async
-   */
+/**
+ * Returns permissions that the caller has on the specified table resource.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.resource
+ *   REQUIRED: The resource for which the policy detail is being requested.
+ *   See the operation documentation for the appropriate value for this field.
+ * @param {string[]} request.permissions
+ *   The set of permissions to check for the `resource`. Permissions with
+ *   wildcards (such as '*' or 'storage.*') are not allowed. For more
+ *   information see
+ *   [IAM Overview](https://cloud.google.com/iam/docs/overview#permissions).
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing [TestIamPermissionsResponse]{@link google.iam.v1.TestIamPermissionsResponse}.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.test_iam_permissions.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_TestIamPermissions_async
+ */
   testIamPermissions(
-    request?: protos.google.iam.v1.ITestIamPermissionsRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.iam.v1.ITestIamPermissionsResponse,
-      protos.google.iam.v1.ITestIamPermissionsRequest | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.iam.v1.ITestIamPermissionsRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.iam.v1.ITestIamPermissionsResponse,
+        protos.google.iam.v1.ITestIamPermissionsRequest|undefined, {}|undefined
+      ]>;
   testIamPermissions(
-    request: protos.google.iam.v1.ITestIamPermissionsRequest,
-    options: CallOptions,
-    callback: Callback<
-      protos.google.iam.v1.ITestIamPermissionsResponse,
-      protos.google.iam.v1.ITestIamPermissionsRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.iam.v1.ITestIamPermissionsRequest,
+      options: CallOptions,
+      callback: Callback<
+          protos.google.iam.v1.ITestIamPermissionsResponse,
+          protos.google.iam.v1.ITestIamPermissionsRequest|null|undefined,
+          {}|null|undefined>): void;
   testIamPermissions(
-    request: protos.google.iam.v1.ITestIamPermissionsRequest,
-    callback: Callback<
-      protos.google.iam.v1.ITestIamPermissionsResponse,
-      protos.google.iam.v1.ITestIamPermissionsRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.iam.v1.ITestIamPermissionsRequest,
+      callback: Callback<
+          protos.google.iam.v1.ITestIamPermissionsResponse,
+          protos.google.iam.v1.ITestIamPermissionsRequest|null|undefined,
+          {}|null|undefined>): void;
   testIamPermissions(
-    request?: protos.google.iam.v1.ITestIamPermissionsRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
+      request?: protos.google.iam.v1.ITestIamPermissionsRequest,
+      optionsOrCallback?: CallOptions|Callback<
           protos.google.iam.v1.ITestIamPermissionsResponse,
-          protos.google.iam.v1.ITestIamPermissionsRequest | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      protos.google.iam.v1.ITestIamPermissionsResponse,
-      protos.google.iam.v1.ITestIamPermissionsRequest | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      protos.google.iam.v1.ITestIamPermissionsResponse,
-      protos.google.iam.v1.ITestIamPermissionsRequest | undefined,
-      {} | undefined
-    ]
-  > | void {
+          protos.google.iam.v1.ITestIamPermissionsRequest|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          protos.google.iam.v1.ITestIamPermissionsResponse,
+          protos.google.iam.v1.ITestIamPermissionsRequest|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        protos.google.iam.v1.ITestIamPermissionsResponse,
+        protos.google.iam.v1.ITestIamPermissionsRequest|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        resource: request.resource || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'resource': request.resource || '',
+    });
     this.initialize();
     return this.innerApiCalls.testIamPermissions(request, options, callback);
   }
 
-  /**
-   * Creates a new table from the specified snapshot. The target table must
-   * not exist. The snapshot and the table must be in the same instance.
-   *
-   * Note: This is a private alpha release of Cloud Bigtable snapshots. This
-   * feature is not currently available to most Cloud Bigtable customers. This
-   * feature might be changed in backward-incompatible ways and is not
-   * recommended for production use. It is not subject to any SLA or deprecation
-   * policy.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the instance in which to create the table.
-   *   Values are of the form `projects/{project}/instances/{instance}`.
-   * @param {string} request.tableId
-   *   Required. The name by which the new table should be referred to within the parent
-   *   instance, e.g., `foobar` rather than `{parent}/tables/foobar`.
-   * @param {string} request.sourceSnapshot
-   *   Required. The unique name of the snapshot from which to restore the table. The
-   *   snapshot and the table must be in the same instance.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}/snapshots/{snapshot}`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing
-   *   a long running operation. Its `promise()` method returns a promise
-   *   you can `await` for.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.create_table_from_snapshot.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CreateTableFromSnapshot_async
-   */
+/**
+ * Creates a new table from the specified snapshot. The target table must
+ * not exist. The snapshot and the table must be in the same instance.
+ *
+ * Note: This is a private alpha release of Cloud Bigtable snapshots. This
+ * feature is not currently available to most Cloud Bigtable customers. This
+ * feature might be changed in backward-incompatible ways and is not
+ * recommended for production use. It is not subject to any SLA or deprecation
+ * policy.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the instance in which to create the table.
+ *   Values are of the form `projects/{project}/instances/{instance}`.
+ * @param {string} request.tableId
+ *   Required. The name by which the new table should be referred to within the
+ *   parent instance, e.g., `foobar` rather than `{parent}/tables/foobar`.
+ * @param {string} request.sourceSnapshot
+ *   Required. The unique name of the snapshot from which to restore the table.
+ *   The snapshot and the table must be in the same instance. Values are of the
+ *   form
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}/snapshots/{snapshot}`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing
+ *   a long running operation. Its `promise()` method returns a promise
+ *   you can `await` for.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.create_table_from_snapshot.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CreateTableFromSnapshot_async
+ */
   createTableFromSnapshot(
-    request?: protos.google.bigtable.admin.v2.ICreateTableFromSnapshotRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.ITable,
-        protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.ICreateTableFromSnapshotRequest,
+      options?: CallOptions):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>;
   createTableFromSnapshot(
-    request: protos.google.bigtable.admin.v2.ICreateTableFromSnapshotRequest,
-    options: CallOptions,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ITable,
-        protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICreateTableFromSnapshotRequest,
+      options: CallOptions,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   createTableFromSnapshot(
-    request: protos.google.bigtable.admin.v2.ICreateTableFromSnapshotRequest,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ITable,
-        protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICreateTableFromSnapshotRequest,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   createTableFromSnapshot(
-    request?: protos.google.bigtable.admin.v2.ICreateTableFromSnapshotRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
-          LROperation<
-            protos.google.bigtable.admin.v2.ITable,
-            protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata
-          >,
-          protos.google.longrunning.IOperation | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ITable,
-        protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.ITable,
-        protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  > | void {
+      request?: protos.google.bigtable.admin.v2.ICreateTableFromSnapshotRequest,
+      optionsOrCallback?: CallOptions|Callback<
+          LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
-    return this.innerApiCalls.createTableFromSnapshot(
-      request,
-      options,
-      callback
-    );
+    return this.innerApiCalls.createTableFromSnapshot(request, options, callback);
   }
-  /**
-   * Check the status of the long running operation returned by `createTableFromSnapshot()`.
-   * @param {String} name
-   *   The operation name that will be passed.
-   * @returns {Promise} - The promise which resolves to an object.
-   *   The decoded operation object has result and metadata field to get information from.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.create_table_from_snapshot.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CreateTableFromSnapshot_async
-   */
-  async checkCreateTableFromSnapshotProgress(
-    name: string
-  ): Promise<
-    LROperation<
-      protos.google.bigtable.admin.v2.Table,
-      protos.google.bigtable.admin.v2.CreateTableFromSnapshotMetadata
-    >
-  > {
-    const request = new operationsProtos.google.longrunning.GetOperationRequest(
-      {name}
-    );
+/**
+ * Check the status of the long running operation returned by `createTableFromSnapshot()`.
+ * @param {String} name
+ *   The operation name that will be passed.
+ * @returns {Promise} - The promise which resolves to an object.
+ *   The decoded operation object has result and metadata field to get information from.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.create_table_from_snapshot.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CreateTableFromSnapshot_async
+ */
+  async checkCreateTableFromSnapshotProgress(name: string): Promise<LROperation<protos.google.bigtable.admin.v2.Table, protos.google.bigtable.admin.v2.CreateTableFromSnapshotMetadata>>{
+    const request = new operationsProtos.google.longrunning.GetOperationRequest({name});
     const [operation] = await this.operationsClient.getOperation(request);
-    const decodeOperation = new gax.Operation(
-      operation,
-      this.descriptors.longrunning.createTableFromSnapshot,
-      gax.createDefaultBackoffSettings()
-    );
-    return decodeOperation as LROperation<
-      protos.google.bigtable.admin.v2.Table,
-      protos.google.bigtable.admin.v2.CreateTableFromSnapshotMetadata
-    >;
+    const decodeOperation = new gax.Operation(operation, this.descriptors.longrunning.createTableFromSnapshot, gax.createDefaultBackoffSettings());
+    return decodeOperation as LROperation<protos.google.bigtable.admin.v2.Table, protos.google.bigtable.admin.v2.CreateTableFromSnapshotMetadata>;
   }
-  /**
-   * Creates a new snapshot in the specified cluster from the specified
-   * source table. The cluster and the table must be in the same instance.
-   *
-   * Note: This is a private alpha release of Cloud Bigtable snapshots. This
-   * feature is not currently available to most Cloud Bigtable customers. This
-   * feature might be changed in backward-incompatible ways and is not
-   * recommended for production use. It is not subject to any SLA or deprecation
-   * policy.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.name
-   *   Required. The unique name of the table to have the snapshot taken.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/tables/{table}`.
-   * @param {string} request.cluster
-   *   Required. The name of the cluster where the snapshot will be created in.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
-   * @param {string} request.snapshotId
-   *   Required. The ID by which the new snapshot should be referred to within the parent
-   *   cluster, e.g., `mysnapshot` of the form: `{@link -_.a-zA-Z0-9|_a-zA-Z0-9}*`
-   *   rather than
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}/snapshots/mysnapshot`.
-   * @param {google.protobuf.Duration} request.ttl
-   *   The amount of time that the new snapshot can stay active after it is
-   *   created. Once 'ttl' expires, the snapshot will get deleted. The maximum
-   *   amount of time a snapshot can stay active is 7 days. If 'ttl' is not
-   *   specified, the default value of 24 hours will be used.
-   * @param {string} request.description
-   *   Description of the snapshot.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing
-   *   a long running operation. Its `promise()` method returns a promise
-   *   you can `await` for.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.snapshot_table.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_SnapshotTable_async
-   */
+/**
+ * Restores a specified table which was accidentally deleted.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the table to be restored.
+ *   Values are of the form
+ *   `projects/{project}/instances/{instance}/tables/{table}`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing
+ *   a long running operation. Its `promise()` method returns a promise
+ *   you can `await` for.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.undelete_table.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_UndeleteTable_async
+ */
+  undeleteTable(
+      request?: protos.google.bigtable.admin.v2.IUndeleteTableRequest,
+      options?: CallOptions):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IUndeleteTableMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>;
+  undeleteTable(
+      request: protos.google.bigtable.admin.v2.IUndeleteTableRequest,
+      options: CallOptions,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IUndeleteTableMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
+  undeleteTable(
+      request: protos.google.bigtable.admin.v2.IUndeleteTableRequest,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IUndeleteTableMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
+  undeleteTable(
+      request?: protos.google.bigtable.admin.v2.IUndeleteTableRequest,
+      optionsOrCallback?: CallOptions|Callback<
+          LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IUndeleteTableMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IUndeleteTableMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IUndeleteTableMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>|void {
+    request = request || {};
+    let options: CallOptions;
+    if (typeof optionsOrCallback === 'function' && callback === undefined) {
+      callback = optionsOrCallback;
+      options = {};
+    }
+    else {
+      options = optionsOrCallback as CallOptions;
+    }
+    options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
+    this.initialize();
+    return this.innerApiCalls.undeleteTable(request, options, callback);
+  }
+/**
+ * Check the status of the long running operation returned by `undeleteTable()`.
+ * @param {String} name
+ *   The operation name that will be passed.
+ * @returns {Promise} - The promise which resolves to an object.
+ *   The decoded operation object has result and metadata field to get information from.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.undelete_table.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_UndeleteTable_async
+ */
+  async checkUndeleteTableProgress(name: string): Promise<LROperation<protos.google.bigtable.admin.v2.Table, protos.google.bigtable.admin.v2.UndeleteTableMetadata>>{
+    const request = new operationsProtos.google.longrunning.GetOperationRequest({name});
+    const [operation] = await this.operationsClient.getOperation(request);
+    const decodeOperation = new gax.Operation(operation, this.descriptors.longrunning.undeleteTable, gax.createDefaultBackoffSettings());
+    return decodeOperation as LROperation<protos.google.bigtable.admin.v2.Table, protos.google.bigtable.admin.v2.UndeleteTableMetadata>;
+  }
+/**
+ * Creates a new snapshot in the specified cluster from the specified
+ * source table. The cluster and the table must be in the same instance.
+ *
+ * Note: This is a private alpha release of Cloud Bigtable snapshots. This
+ * feature is not currently available to most Cloud Bigtable customers. This
+ * feature might be changed in backward-incompatible ways and is not
+ * recommended for production use. It is not subject to any SLA or deprecation
+ * policy.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.name
+ *   Required. The unique name of the table to have the snapshot taken.
+ *   Values are of the form
+ *   `projects/{project}/instances/{instance}/tables/{table}`.
+ * @param {string} request.cluster
+ *   Required. The name of the cluster where the snapshot will be created in.
+ *   Values are of the form
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ * @param {string} request.snapshotId
+ *   Required. The ID by which the new snapshot should be referred to within the
+ *   parent cluster, e.g., `mysnapshot` of the form:
+ *   `{@link -_.a-zA-Z0-9|_a-zA-Z0-9}*` rather than
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}/snapshots/mysnapshot`.
+ * @param {google.protobuf.Duration} request.ttl
+ *   The amount of time that the new snapshot can stay active after it is
+ *   created. Once 'ttl' expires, the snapshot will get deleted. The maximum
+ *   amount of time a snapshot can stay active is 7 days. If 'ttl' is not
+ *   specified, the default value of 24 hours will be used.
+ * @param {string} request.description
+ *   Description of the snapshot.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing
+ *   a long running operation. Its `promise()` method returns a promise
+ *   you can `await` for.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.snapshot_table.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_SnapshotTable_async
+ */
   snapshotTable(
-    request?: protos.google.bigtable.admin.v2.ISnapshotTableRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.ISnapshot,
-        protos.google.bigtable.admin.v2.ISnapshotTableMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.ISnapshotTableRequest,
+      options?: CallOptions):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ISnapshot, protos.google.bigtable.admin.v2.ISnapshotTableMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>;
   snapshotTable(
-    request: protos.google.bigtable.admin.v2.ISnapshotTableRequest,
-    options: CallOptions,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ISnapshot,
-        protos.google.bigtable.admin.v2.ISnapshotTableMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ISnapshotTableRequest,
+      options: CallOptions,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ISnapshot, protos.google.bigtable.admin.v2.ISnapshotTableMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   snapshotTable(
-    request: protos.google.bigtable.admin.v2.ISnapshotTableRequest,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ISnapshot,
-        protos.google.bigtable.admin.v2.ISnapshotTableMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ISnapshotTableRequest,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ISnapshot, protos.google.bigtable.admin.v2.ISnapshotTableMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   snapshotTable(
-    request?: protos.google.bigtable.admin.v2.ISnapshotTableRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
-          LROperation<
-            protos.google.bigtable.admin.v2.ISnapshot,
-            protos.google.bigtable.admin.v2.ISnapshotTableMetadata
-          >,
-          protos.google.longrunning.IOperation | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ISnapshot,
-        protos.google.bigtable.admin.v2.ISnapshotTableMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.ISnapshot,
-        protos.google.bigtable.admin.v2.ISnapshotTableMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  > | void {
+      request?: protos.google.bigtable.admin.v2.ISnapshotTableRequest,
+      optionsOrCallback?: CallOptions|Callback<
+          LROperation<protos.google.bigtable.admin.v2.ISnapshot, protos.google.bigtable.admin.v2.ISnapshotTableMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ISnapshot, protos.google.bigtable.admin.v2.ISnapshotTableMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ISnapshot, protos.google.bigtable.admin.v2.ISnapshotTableMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        name: request.name || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'name': request.name || '',
+    });
     this.initialize();
     return this.innerApiCalls.snapshotTable(request, options, callback);
   }
-  /**
-   * Check the status of the long running operation returned by `snapshotTable()`.
-   * @param {String} name
-   *   The operation name that will be passed.
-   * @returns {Promise} - The promise which resolves to an object.
-   *   The decoded operation object has result and metadata field to get information from.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.snapshot_table.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_SnapshotTable_async
-   */
-  async checkSnapshotTableProgress(
-    name: string
-  ): Promise<
-    LROperation<
-      protos.google.bigtable.admin.v2.Snapshot,
-      protos.google.bigtable.admin.v2.SnapshotTableMetadata
-    >
-  > {
-    const request = new operationsProtos.google.longrunning.GetOperationRequest(
-      {name}
-    );
+/**
+ * Check the status of the long running operation returned by `snapshotTable()`.
+ * @param {String} name
+ *   The operation name that will be passed.
+ * @returns {Promise} - The promise which resolves to an object.
+ *   The decoded operation object has result and metadata field to get information from.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.snapshot_table.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_SnapshotTable_async
+ */
+  async checkSnapshotTableProgress(name: string): Promise<LROperation<protos.google.bigtable.admin.v2.Snapshot, protos.google.bigtable.admin.v2.SnapshotTableMetadata>>{
+    const request = new operationsProtos.google.longrunning.GetOperationRequest({name});
     const [operation] = await this.operationsClient.getOperation(request);
-    const decodeOperation = new gax.Operation(
-      operation,
-      this.descriptors.longrunning.snapshotTable,
-      gax.createDefaultBackoffSettings()
-    );
-    return decodeOperation as LROperation<
-      protos.google.bigtable.admin.v2.Snapshot,
-      protos.google.bigtable.admin.v2.SnapshotTableMetadata
-    >;
+    const decodeOperation = new gax.Operation(operation, this.descriptors.longrunning.snapshotTable, gax.createDefaultBackoffSettings());
+    return decodeOperation as LROperation<protos.google.bigtable.admin.v2.Snapshot, protos.google.bigtable.admin.v2.SnapshotTableMetadata>;
   }
-  /**
-   * Starts creating a new Cloud Bigtable Backup.  The returned backup
-   * {@link google.longrunning.Operation|long-running operation} can be used to
-   * track creation of the backup. The
-   * {@link google.longrunning.Operation.metadata|metadata} field type is
-   * {@link google.bigtable.admin.v2.CreateBackupMetadata|CreateBackupMetadata}. The
-   * {@link google.longrunning.Operation.response|response} field type is
-   * {@link google.bigtable.admin.v2.Backup|Backup}, if successful. Cancelling the returned operation will stop the
-   * creation and delete the backup.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. This must be one of the clusters in the instance in which this
-   *   table is located. The backup will be stored in this cluster. Values are
-   *   of the form `projects/{project}/instances/{instance}/clusters/{cluster}`.
-   * @param {string} request.backupId
-   *   Required. The id of the backup to be created. The `backup_id` along with
-   *   the parent `parent` are combined as {parent}/backups/{backup_id} to create
-   *   the full backup name, of the form:
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}/backups/{backup_id}`.
-   *   This string must be between 1 and 50 characters in length and match the
-   *   regex {@link -_.a-zA-Z0-9|_a-zA-Z0-9}*.
-   * @param {google.bigtable.admin.v2.Backup} request.backup
-   *   Required. The backup to create.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing
-   *   a long running operation. Its `promise()` method returns a promise
-   *   you can `await` for.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.create_backup.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CreateBackup_async
-   */
+/**
+ * Starts creating a new Cloud Bigtable Backup.  The returned backup
+ * {@link google.longrunning.Operation|long-running operation} can be used to
+ * track creation of the backup. The
+ * {@link google.longrunning.Operation.metadata|metadata} field type is
+ * {@link google.bigtable.admin.v2.CreateBackupMetadata|CreateBackupMetadata}. The
+ * {@link google.longrunning.Operation.response|response} field type is
+ * {@link google.bigtable.admin.v2.Backup|Backup}, if successful. Cancelling the
+ * returned operation will stop the creation and delete the backup.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. This must be one of the clusters in the instance in which this
+ *   table is located. The backup will be stored in this cluster. Values are
+ *   of the form `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ * @param {string} request.backupId
+ *   Required. The id of the backup to be created. The `backup_id` along with
+ *   the parent `parent` are combined as {parent}/backups/{backup_id} to create
+ *   the full backup name, of the form:
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}/backups/{backup_id}`.
+ *   This string must be between 1 and 50 characters in length and match the
+ *   regex {@link -_.a-zA-Z0-9|_a-zA-Z0-9}*.
+ * @param {google.bigtable.admin.v2.Backup} request.backup
+ *   Required. The backup to create.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing
+ *   a long running operation. Its `promise()` method returns a promise
+ *   you can `await` for.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.create_backup.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CreateBackup_async
+ */
   createBackup(
-    request?: protos.google.bigtable.admin.v2.ICreateBackupRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.IBackup,
-        protos.google.bigtable.admin.v2.ICreateBackupMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.ICreateBackupRequest,
+      options?: CallOptions):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICreateBackupMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>;
   createBackup(
-    request: protos.google.bigtable.admin.v2.ICreateBackupRequest,
-    options: CallOptions,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.IBackup,
-        protos.google.bigtable.admin.v2.ICreateBackupMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICreateBackupRequest,
+      options: CallOptions,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICreateBackupMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   createBackup(
-    request: protos.google.bigtable.admin.v2.ICreateBackupRequest,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.IBackup,
-        protos.google.bigtable.admin.v2.ICreateBackupMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.ICreateBackupRequest,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICreateBackupMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   createBackup(
-    request?: protos.google.bigtable.admin.v2.ICreateBackupRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
-          LROperation<
-            protos.google.bigtable.admin.v2.IBackup,
-            protos.google.bigtable.admin.v2.ICreateBackupMetadata
-          >,
-          protos.google.longrunning.IOperation | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.IBackup,
-        protos.google.bigtable.admin.v2.ICreateBackupMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.IBackup,
-        protos.google.bigtable.admin.v2.ICreateBackupMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  > | void {
+      request?: protos.google.bigtable.admin.v2.ICreateBackupRequest,
+      optionsOrCallback?: CallOptions|Callback<
+          LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICreateBackupMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICreateBackupMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICreateBackupMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
     return this.innerApiCalls.createBackup(request, options, callback);
   }
-  /**
-   * Check the status of the long running operation returned by `createBackup()`.
-   * @param {String} name
-   *   The operation name that will be passed.
-   * @returns {Promise} - The promise which resolves to an object.
-   *   The decoded operation object has result and metadata field to get information from.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.create_backup.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CreateBackup_async
-   */
-  async checkCreateBackupProgress(
-    name: string
-  ): Promise<
-    LROperation<
-      protos.google.bigtable.admin.v2.Backup,
-      protos.google.bigtable.admin.v2.CreateBackupMetadata
-    >
-  > {
-    const request = new operationsProtos.google.longrunning.GetOperationRequest(
-      {name}
-    );
+/**
+ * Check the status of the long running operation returned by `createBackup()`.
+ * @param {String} name
+ *   The operation name that will be passed.
+ * @returns {Promise} - The promise which resolves to an object.
+ *   The decoded operation object has result and metadata field to get information from.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.create_backup.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CreateBackup_async
+ */
+  async checkCreateBackupProgress(name: string): Promise<LROperation<protos.google.bigtable.admin.v2.Backup, protos.google.bigtable.admin.v2.CreateBackupMetadata>>{
+    const request = new operationsProtos.google.longrunning.GetOperationRequest({name});
     const [operation] = await this.operationsClient.getOperation(request);
-    const decodeOperation = new gax.Operation(
-      operation,
-      this.descriptors.longrunning.createBackup,
-      gax.createDefaultBackoffSettings()
-    );
-    return decodeOperation as LROperation<
-      protos.google.bigtable.admin.v2.Backup,
-      protos.google.bigtable.admin.v2.CreateBackupMetadata
-    >;
+    const decodeOperation = new gax.Operation(operation, this.descriptors.longrunning.createBackup, gax.createDefaultBackoffSettings());
+    return decodeOperation as LROperation<protos.google.bigtable.admin.v2.Backup, protos.google.bigtable.admin.v2.CreateBackupMetadata>;
   }
-  /**
-   * Create a new table by restoring from a completed backup. The new table
-   * must be in the same project as the instance containing the backup.  The
-   * returned table {@link google.longrunning.Operation|long-running operation} can
-   * be used to track the progress of the operation, and to cancel it.  The
-   * {@link google.longrunning.Operation.metadata|metadata} field type is
-   * {@link google.bigtable.admin.RestoreTableMetadata|RestoreTableMetadata}.  The
-   * {@link google.longrunning.Operation.response|response} type is
-   * {@link google.bigtable.admin.v2.Table|Table}, if successful.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The name of the instance in which to create the restored
-   *   table. This instance must be in the same project as the source backup.
-   *   Values are of the form `projects/<project>/instances/<instance>`.
-   * @param {string} request.tableId
-   *   Required. The id of the table to create and restore to. This
-   *   table must not already exist. The `table_id` appended to
-   *   `parent` forms the full table name of the form
-   *   `projects/<project>/instances/<instance>/tables/<table_id>`.
-   * @param {string} request.backup
-   *   Name of the backup from which to restore.  Values are of the form
-   *   `projects/<project>/instances/<instance>/clusters/<cluster>/backups/<backup>`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is an object representing
-   *   a long running operation. Its `promise()` method returns a promise
-   *   you can `await` for.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.restore_table.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_RestoreTable_async
-   */
+/**
+ * Create a new table by restoring from a completed backup. The new table
+ * must be in the same project as the instance containing the backup.  The
+ * returned table {@link google.longrunning.Operation|long-running operation} can
+ * be used to track the progress of the operation, and to cancel it.  The
+ * {@link google.longrunning.Operation.metadata|metadata} field type is
+ * {@link google.bigtable.admin.RestoreTableMetadata|RestoreTableMetadata}.  The
+ * {@link google.longrunning.Operation.response|response} type is
+ * {@link google.bigtable.admin.v2.Table|Table}, if successful.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The name of the instance in which to create the restored
+ *   table. This instance must be in the same project as the source backup.
+ *   Values are of the form `projects/<project>/instances/<instance>`.
+ * @param {string} request.tableId
+ *   Required. The id of the table to create and restore to. This
+ *   table must not already exist. The `table_id` appended to
+ *   `parent` forms the full table name of the form
+ *   `projects/<project>/instances/<instance>/tables/<table_id>`.
+ * @param {string} request.backup
+ *   Name of the backup from which to restore.  Values are of the form
+ *   `projects/<project>/instances/<instance>/clusters/<cluster>/backups/<backup>`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing
+ *   a long running operation. Its `promise()` method returns a promise
+ *   you can `await` for.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.restore_table.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_RestoreTable_async
+ */
   restoreTable(
-    request?: protos.google.bigtable.admin.v2.IRestoreTableRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.ITable,
-        protos.google.bigtable.admin.v2.IRestoreTableMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IRestoreTableRequest,
+      options?: CallOptions):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IRestoreTableMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>;
   restoreTable(
-    request: protos.google.bigtable.admin.v2.IRestoreTableRequest,
-    options: CallOptions,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ITable,
-        protos.google.bigtable.admin.v2.IRestoreTableMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IRestoreTableRequest,
+      options: CallOptions,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IRestoreTableMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   restoreTable(
-    request: protos.google.bigtable.admin.v2.IRestoreTableRequest,
-    callback: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ITable,
-        protos.google.bigtable.admin.v2.IRestoreTableMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IRestoreTableRequest,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IRestoreTableMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
   restoreTable(
-    request?: protos.google.bigtable.admin.v2.IRestoreTableRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | Callback<
-          LROperation<
-            protos.google.bigtable.admin.v2.ITable,
-            protos.google.bigtable.admin.v2.IRestoreTableMetadata
-          >,
-          protos.google.longrunning.IOperation | null | undefined,
-          {} | null | undefined
-        >,
-    callback?: Callback<
-      LROperation<
-        protos.google.bigtable.admin.v2.ITable,
-        protos.google.bigtable.admin.v2.IRestoreTableMetadata
-      >,
-      protos.google.longrunning.IOperation | null | undefined,
-      {} | null | undefined
-    >
-  ): Promise<
-    [
-      LROperation<
-        protos.google.bigtable.admin.v2.ITable,
-        protos.google.bigtable.admin.v2.IRestoreTableMetadata
-      >,
-      protos.google.longrunning.IOperation | undefined,
-      {} | undefined
-    ]
-  > | void {
+      request?: protos.google.bigtable.admin.v2.IRestoreTableRequest,
+      optionsOrCallback?: CallOptions|Callback<
+          LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IRestoreTableMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IRestoreTableMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IRestoreTableMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
     return this.innerApiCalls.restoreTable(request, options, callback);
   }
-  /**
-   * Check the status of the long running operation returned by `restoreTable()`.
-   * @param {String} name
-   *   The operation name that will be passed.
-   * @returns {Promise} - The promise which resolves to an object.
-   *   The decoded operation object has result and metadata field to get information from.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.restore_table.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_RestoreTable_async
-   */
-  async checkRestoreTableProgress(
-    name: string
-  ): Promise<
-    LROperation<
-      protos.google.bigtable.admin.v2.Table,
-      protos.google.bigtable.admin.v2.RestoreTableMetadata
-    >
-  > {
-    const request = new operationsProtos.google.longrunning.GetOperationRequest(
-      {name}
-    );
+/**
+ * Check the status of the long running operation returned by `restoreTable()`.
+ * @param {String} name
+ *   The operation name that will be passed.
+ * @returns {Promise} - The promise which resolves to an object.
+ *   The decoded operation object has result and metadata field to get information from.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.restore_table.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_RestoreTable_async
+ */
+  async checkRestoreTableProgress(name: string): Promise<LROperation<protos.google.bigtable.admin.v2.Table, protos.google.bigtable.admin.v2.RestoreTableMetadata>>{
+    const request = new operationsProtos.google.longrunning.GetOperationRequest({name});
     const [operation] = await this.operationsClient.getOperation(request);
-    const decodeOperation = new gax.Operation(
-      operation,
-      this.descriptors.longrunning.restoreTable,
-      gax.createDefaultBackoffSettings()
-    );
-    return decodeOperation as LROperation<
-      protos.google.bigtable.admin.v2.Table,
-      protos.google.bigtable.admin.v2.RestoreTableMetadata
-    >;
+    const decodeOperation = new gax.Operation(operation, this.descriptors.longrunning.restoreTable, gax.createDefaultBackoffSettings());
+    return decodeOperation as LROperation<protos.google.bigtable.admin.v2.Table, protos.google.bigtable.admin.v2.RestoreTableMetadata>;
   }
-  /**
-   * Lists all tables served from a specified instance.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the instance for which tables should be listed.
-   *   Values are of the form `projects/{project}/instances/{instance}`.
-   * @param {google.bigtable.admin.v2.Table.View} request.view
-   *   The view to be applied to the returned tables' fields.
-   *   Only NAME_ONLY view (default) and REPLICATION_VIEW are supported.
-   * @param {number} request.pageSize
-   *   Maximum number of results per page.
-   *
-   *   A page_size of zero lets the server choose the number of items to return.
-   *   A page_size which is strictly positive will return at most that many items.
-   *   A negative page_size will cause an error.
-   *
-   *   Following the first request, subsequent paginated calls are not required
-   *   to pass a page_size. If a page_size is set in subsequent calls, it must
-   *   match the page_size given in the first request.
-   * @param {string} request.pageToken
-   *   The value of `next_page_token` returned by a previous call.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is Array of [Table]{@link google.bigtable.admin.v2.Table}.
-   *   The client library will perform auto-pagination by default: it will call the API as many
-   *   times as needed and will merge results from all the pages into this array.
-   *   Note that it can affect your quota.
-   *   We recommend using `listTablesAsync()`
-   *   method described below for async iteration which you can stop as needed.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
-   *   for more details and examples.
-   */
+/**
+ * Copy a Cloud Bigtable backup to a new backup in the destination cluster
+ * located in the destination instance and project.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The name of the destination cluster that will contain the backup
+ *   copy. The cluster must already exist. Values are of the form:
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ * @param {string} request.backupId
+ *   Required. The id of the new backup. The `backup_id` along with `parent`
+ *   are combined as `{parent}/backups/{backup_id}` to create the full backup
+ *   name, of the form:
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}/backups/{backup_id}`.
+ *   This string must be between 1 and 50 characters in length and match the
+ *   regex `{@link -_.a-zA-Z0-9|_a-zA-Z0-9}*`.
+ * @param {string} request.sourceBackup
+ *   Required. The source backup to be copied from.
+ *   The source backup needs to be in READY state for it to be copied.
+ *   Copying a copied backup is not allowed.
+ *   Once CopyBackup is in progress, the source backup cannot be deleted or
+ *   cleaned up on expiration until CopyBackup is finished.
+ *   Values are of the form:
+ *   `projects/<project>/instances/<instance>/clusters/<cluster>/backups/<backup>`.
+ * @param {google.protobuf.Timestamp} request.expireTime
+ *   Required. Required. The expiration time of the copied backup with
+ *   microsecond granularity that must be at least 6 hours and at most 30 days
+ *   from the time the request is received. Once the `expire_time` has
+ *   passed, Cloud Bigtable will delete the backup and free the resources used
+ *   by the backup.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is an object representing
+ *   a long running operation. Its `promise()` method returns a promise
+ *   you can `await` for.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.copy_backup.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CopyBackup_async
+ */
+  copyBackup(
+      request?: protos.google.bigtable.admin.v2.ICopyBackupRequest,
+      options?: CallOptions):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICopyBackupMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>;
+  copyBackup(
+      request: protos.google.bigtable.admin.v2.ICopyBackupRequest,
+      options: CallOptions,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICopyBackupMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
+  copyBackup(
+      request: protos.google.bigtable.admin.v2.ICopyBackupRequest,
+      callback: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICopyBackupMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>): void;
+  copyBackup(
+      request?: protos.google.bigtable.admin.v2.ICopyBackupRequest,
+      optionsOrCallback?: CallOptions|Callback<
+          LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICopyBackupMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>,
+      callback?: Callback<
+          LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICopyBackupMetadata>,
+          protos.google.longrunning.IOperation|null|undefined,
+          {}|null|undefined>):
+      Promise<[
+        LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICopyBackupMetadata>,
+        protos.google.longrunning.IOperation|undefined, {}|undefined
+      ]>|void {
+    request = request || {};
+    let options: CallOptions;
+    if (typeof optionsOrCallback === 'function' && callback === undefined) {
+      callback = optionsOrCallback;
+      options = {};
+    }
+    else {
+      options = optionsOrCallback as CallOptions;
+    }
+    options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
+    this.initialize();
+    return this.innerApiCalls.copyBackup(request, options, callback);
+  }
+/**
+ * Check the status of the long running operation returned by `copyBackup()`.
+ * @param {String} name
+ *   The operation name that will be passed.
+ * @returns {Promise} - The promise which resolves to an object.
+ *   The decoded operation object has result and metadata field to get information from.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#long-running-operations)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.copy_backup.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_CopyBackup_async
+ */
+  async checkCopyBackupProgress(name: string): Promise<LROperation<protos.google.bigtable.admin.v2.Backup, protos.google.bigtable.admin.v2.CopyBackupMetadata>>{
+    const request = new operationsProtos.google.longrunning.GetOperationRequest({name});
+    const [operation] = await this.operationsClient.getOperation(request);
+    const decodeOperation = new gax.Operation(operation, this.descriptors.longrunning.copyBackup, gax.createDefaultBackoffSettings());
+    return decodeOperation as LROperation<protos.google.bigtable.admin.v2.Backup, protos.google.bigtable.admin.v2.CopyBackupMetadata>;
+  }
+ /**
+ * Lists all tables served from a specified instance.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the instance for which tables should be
+ *   listed. Values are of the form `projects/{project}/instances/{instance}`.
+ * @param {google.bigtable.admin.v2.Table.View} request.view
+ *   The view to be applied to the returned tables' fields.
+ *   Only NAME_ONLY view (default), REPLICATION_VIEW and ENCRYPTION_VIEW are
+ *   supported.
+ * @param {number} request.pageSize
+ *   Maximum number of results per page.
+ *
+ *   A page_size of zero lets the server choose the number of items to return.
+ *   A page_size which is strictly positive will return at most that many items.
+ *   A negative page_size will cause an error.
+ *
+ *   Following the first request, subsequent paginated calls are not required
+ *   to pass a page_size. If a page_size is set in subsequent calls, it must
+ *   match the page_size given in the first request.
+ * @param {string} request.pageToken
+ *   The value of `next_page_token` returned by a previous call.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is Array of [Table]{@link google.bigtable.admin.v2.Table}.
+ *   The client library will perform auto-pagination by default: it will call the API as many
+ *   times as needed and will merge results from all the pages into this array.
+ *   Note that it can affect your quota.
+ *   We recommend using `listTablesAsync()`
+ *   method described below for async iteration which you can stop as needed.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ */
   listTables(
-    request?: protos.google.bigtable.admin.v2.IListTablesRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ITable[],
-      protos.google.bigtable.admin.v2.IListTablesRequest | null,
-      protos.google.bigtable.admin.v2.IListTablesResponse
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IListTablesRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.ITable[],
+        protos.google.bigtable.admin.v2.IListTablesRequest|null,
+        protos.google.bigtable.admin.v2.IListTablesResponse
+      ]>;
   listTables(
-    request: protos.google.bigtable.admin.v2.IListTablesRequest,
-    options: CallOptions,
-    callback: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListTablesRequest,
-      protos.google.bigtable.admin.v2.IListTablesResponse | null | undefined,
-      protos.google.bigtable.admin.v2.ITable
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListTablesRequest,
+      options: CallOptions,
+      callback: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListTablesRequest,
+          protos.google.bigtable.admin.v2.IListTablesResponse|null|undefined,
+          protos.google.bigtable.admin.v2.ITable>): void;
   listTables(
-    request: protos.google.bigtable.admin.v2.IListTablesRequest,
-    callback: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListTablesRequest,
-      protos.google.bigtable.admin.v2.IListTablesResponse | null | undefined,
-      protos.google.bigtable.admin.v2.ITable
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListTablesRequest,
+      callback: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListTablesRequest,
+          protos.google.bigtable.admin.v2.IListTablesResponse|null|undefined,
+          protos.google.bigtable.admin.v2.ITable>): void;
   listTables(
-    request?: protos.google.bigtable.admin.v2.IListTablesRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | PaginationCallback<
+      request?: protos.google.bigtable.admin.v2.IListTablesRequest,
+      optionsOrCallback?: CallOptions|PaginationCallback<
           protos.google.bigtable.admin.v2.IListTablesRequest,
-          | protos.google.bigtable.admin.v2.IListTablesResponse
-          | null
-          | undefined,
-          protos.google.bigtable.admin.v2.ITable
-        >,
-    callback?: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListTablesRequest,
-      protos.google.bigtable.admin.v2.IListTablesResponse | null | undefined,
-      protos.google.bigtable.admin.v2.ITable
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ITable[],
-      protos.google.bigtable.admin.v2.IListTablesRequest | null,
-      protos.google.bigtable.admin.v2.IListTablesResponse
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IListTablesResponse|null|undefined,
+          protos.google.bigtable.admin.v2.ITable>,
+      callback?: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListTablesRequest,
+          protos.google.bigtable.admin.v2.IListTablesResponse|null|undefined,
+          protos.google.bigtable.admin.v2.ITable>):
+      Promise<[
+        protos.google.bigtable.admin.v2.ITable[],
+        protos.google.bigtable.admin.v2.IListTablesRequest|null,
+        protos.google.bigtable.admin.v2.IListTablesResponse
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
     return this.innerApiCalls.listTables(request, options, callback);
   }
 
-  /**
-   * Equivalent to `method.name.toCamelCase()`, but returns a NodeJS Stream object.
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the instance for which tables should be listed.
-   *   Values are of the form `projects/{project}/instances/{instance}`.
-   * @param {google.bigtable.admin.v2.Table.View} request.view
-   *   The view to be applied to the returned tables' fields.
-   *   Only NAME_ONLY view (default) and REPLICATION_VIEW are supported.
-   * @param {number} request.pageSize
-   *   Maximum number of results per page.
-   *
-   *   A page_size of zero lets the server choose the number of items to return.
-   *   A page_size which is strictly positive will return at most that many items.
-   *   A negative page_size will cause an error.
-   *
-   *   Following the first request, subsequent paginated calls are not required
-   *   to pass a page_size. If a page_size is set in subsequent calls, it must
-   *   match the page_size given in the first request.
-   * @param {string} request.pageToken
-   *   The value of `next_page_token` returned by a previous call.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Stream}
-   *   An object stream which emits an object representing [Table]{@link google.bigtable.admin.v2.Table} on 'data' event.
-   *   The client library will perform auto-pagination by default: it will call the API as many
-   *   times as needed. Note that it can affect your quota.
-   *   We recommend using `listTablesAsync()`
-   *   method described below for async iteration which you can stop as needed.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
-   *   for more details and examples.
-   */
+/**
+ * Equivalent to `method.name.toCamelCase()`, but returns a NodeJS Stream object.
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the instance for which tables should be
+ *   listed. Values are of the form `projects/{project}/instances/{instance}`.
+ * @param {google.bigtable.admin.v2.Table.View} request.view
+ *   The view to be applied to the returned tables' fields.
+ *   Only NAME_ONLY view (default), REPLICATION_VIEW and ENCRYPTION_VIEW are
+ *   supported.
+ * @param {number} request.pageSize
+ *   Maximum number of results per page.
+ *
+ *   A page_size of zero lets the server choose the number of items to return.
+ *   A page_size which is strictly positive will return at most that many items.
+ *   A negative page_size will cause an error.
+ *
+ *   Following the first request, subsequent paginated calls are not required
+ *   to pass a page_size. If a page_size is set in subsequent calls, it must
+ *   match the page_size given in the first request.
+ * @param {string} request.pageToken
+ *   The value of `next_page_token` returned by a previous call.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Stream}
+ *   An object stream which emits an object representing [Table]{@link google.bigtable.admin.v2.Table} on 'data' event.
+ *   The client library will perform auto-pagination by default: it will call the API as many
+ *   times as needed. Note that it can affect your quota.
+ *   We recommend using `listTablesAsync()`
+ *   method described below for async iteration which you can stop as needed.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ */
   listTablesStream(
-    request?: protos.google.bigtable.admin.v2.IListTablesRequest,
-    options?: CallOptions
-  ): Transform {
+      request?: protos.google.bigtable.admin.v2.IListTablesRequest,
+      options?: CallOptions):
+    Transform{
     request = request || {};
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     const defaultCallSettings = this._defaults['listTables'];
-    const callSettings = defaultCallSettings.merge(options);
-    this.initialize();
-    return this.descriptors.page.listTables.createStream(
-      this.innerApiCalls.listTables as gax.GaxCall,
-      request,
-      callSettings
-    );
-  }
-
-  /**
-   * Equivalent to `listTables`, but returns an iterable object.
-   *
-   * `for`-`await`-`of` syntax is used with the iterable to get response elements on-demand.
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the instance for which tables should be listed.
-   *   Values are of the form `projects/{project}/instances/{instance}`.
-   * @param {google.bigtable.admin.v2.Table.View} request.view
-   *   The view to be applied to the returned tables' fields.
-   *   Only NAME_ONLY view (default) and REPLICATION_VIEW are supported.
-   * @param {number} request.pageSize
-   *   Maximum number of results per page.
-   *
-   *   A page_size of zero lets the server choose the number of items to return.
-   *   A page_size which is strictly positive will return at most that many items.
-   *   A negative page_size will cause an error.
-   *
-   *   Following the first request, subsequent paginated calls are not required
-   *   to pass a page_size. If a page_size is set in subsequent calls, it must
-   *   match the page_size given in the first request.
-   * @param {string} request.pageToken
-   *   The value of `next_page_token` returned by a previous call.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Object}
-   *   An iterable Object that allows [async iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols).
-   *   When you iterate the returned iterable, each element will be an object representing
-   *   [Table]{@link google.bigtable.admin.v2.Table}. The API will be called under the hood as needed, once per the page,
-   *   so you can stop the iteration when you don't need more results.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.list_tables.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_ListTables_async
-   */
+    const callSettings = defaultCallSettings.merge(options);
+    this.initialize();
+    return this.descriptors.page.listTables.createStream(
+      this.innerApiCalls.listTables as gax.GaxCall,
+      request,
+      callSettings
+    );
+  }
+
+/**
+ * Equivalent to `listTables`, but returns an iterable object.
+ *
+ * `for`-`await`-`of` syntax is used with the iterable to get response elements on-demand.
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the instance for which tables should be
+ *   listed. Values are of the form `projects/{project}/instances/{instance}`.
+ * @param {google.bigtable.admin.v2.Table.View} request.view
+ *   The view to be applied to the returned tables' fields.
+ *   Only NAME_ONLY view (default), REPLICATION_VIEW and ENCRYPTION_VIEW are
+ *   supported.
+ * @param {number} request.pageSize
+ *   Maximum number of results per page.
+ *
+ *   A page_size of zero lets the server choose the number of items to return.
+ *   A page_size which is strictly positive will return at most that many items.
+ *   A negative page_size will cause an error.
+ *
+ *   Following the first request, subsequent paginated calls are not required
+ *   to pass a page_size. If a page_size is set in subsequent calls, it must
+ *   match the page_size given in the first request.
+ * @param {string} request.pageToken
+ *   The value of `next_page_token` returned by a previous call.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Object}
+ *   An iterable Object that allows [async iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols).
+ *   When you iterate the returned iterable, each element will be an object representing
+ *   [Table]{@link google.bigtable.admin.v2.Table}. The API will be called under the hood as needed, once per the page,
+ *   so you can stop the iteration when you don't need more results.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.list_tables.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_ListTables_async
+ */
   listTablesAsync(
-    request?: protos.google.bigtable.admin.v2.IListTablesRequest,
-    options?: CallOptions
-  ): AsyncIterable<protos.google.bigtable.admin.v2.ITable> {
+      request?: protos.google.bigtable.admin.v2.IListTablesRequest,
+      options?: CallOptions):
+    AsyncIterable<protos.google.bigtable.admin.v2.ITable>{
     request = request || {};
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     const defaultCallSettings = this._defaults['listTables'];
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
@@ -2700,149 +2431,138 @@ export class BigtableTableAdminClient {
       callSettings
     ) as AsyncIterable<protos.google.bigtable.admin.v2.ITable>;
   }
-  /**
-   * Lists all snapshots associated with the specified cluster.
-   *
-   * Note: This is a private alpha release of Cloud Bigtable snapshots. This
-   * feature is not currently available to most Cloud Bigtable customers. This
-   * feature might be changed in backward-incompatible ways and is not
-   * recommended for production use. It is not subject to any SLA or deprecation
-   * policy.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the cluster for which snapshots should be listed.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
-   *   Use `{cluster} = '-'` to list snapshots for all clusters in an instance,
-   *   e.g., `projects/{project}/instances/{instance}/clusters/-`.
-   * @param {number} request.pageSize
-   *   The maximum number of snapshots to return per page.
-   *   CURRENTLY UNIMPLEMENTED AND IGNORED.
-   * @param {string} request.pageToken
-   *   The value of `next_page_token` returned by a previous call.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is Array of [Snapshot]{@link google.bigtable.admin.v2.Snapshot}.
-   *   The client library will perform auto-pagination by default: it will call the API as many
-   *   times as needed and will merge results from all the pages into this array.
-   *   Note that it can affect your quota.
-   *   We recommend using `listSnapshotsAsync()`
-   *   method described below for async iteration which you can stop as needed.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
-   *   for more details and examples.
-   */
+ /**
+ * Lists all snapshots associated with the specified cluster.
+ *
+ * Note: This is a private alpha release of Cloud Bigtable snapshots. This
+ * feature is not currently available to most Cloud Bigtable customers. This
+ * feature might be changed in backward-incompatible ways and is not
+ * recommended for production use. It is not subject to any SLA or deprecation
+ * policy.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the cluster for which snapshots should be
+ *   listed. Values are of the form
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ *   Use `{cluster} = '-'` to list snapshots for all clusters in an instance,
+ *   e.g., `projects/{project}/instances/{instance}/clusters/-`.
+ * @param {number} request.pageSize
+ *   The maximum number of snapshots to return per page.
+ *   CURRENTLY UNIMPLEMENTED AND IGNORED.
+ * @param {string} request.pageToken
+ *   The value of `next_page_token` returned by a previous call.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is Array of [Snapshot]{@link google.bigtable.admin.v2.Snapshot}.
+ *   The client library will perform auto-pagination by default: it will call the API as many
+ *   times as needed and will merge results from all the pages into this array.
+ *   Note that it can affect your quota.
+ *   We recommend using `listSnapshotsAsync()`
+ *   method described below for async iteration which you can stop as needed.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ */
   listSnapshots(
-    request?: protos.google.bigtable.admin.v2.IListSnapshotsRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ISnapshot[],
-      protos.google.bigtable.admin.v2.IListSnapshotsRequest | null,
-      protos.google.bigtable.admin.v2.IListSnapshotsResponse
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IListSnapshotsRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.ISnapshot[],
+        protos.google.bigtable.admin.v2.IListSnapshotsRequest|null,
+        protos.google.bigtable.admin.v2.IListSnapshotsResponse
+      ]>;
   listSnapshots(
-    request: protos.google.bigtable.admin.v2.IListSnapshotsRequest,
-    options: CallOptions,
-    callback: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListSnapshotsRequest,
-      protos.google.bigtable.admin.v2.IListSnapshotsResponse | null | undefined,
-      protos.google.bigtable.admin.v2.ISnapshot
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListSnapshotsRequest,
+      options: CallOptions,
+      callback: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListSnapshotsRequest,
+          protos.google.bigtable.admin.v2.IListSnapshotsResponse|null|undefined,
+          protos.google.bigtable.admin.v2.ISnapshot>): void;
   listSnapshots(
-    request: protos.google.bigtable.admin.v2.IListSnapshotsRequest,
-    callback: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListSnapshotsRequest,
-      protos.google.bigtable.admin.v2.IListSnapshotsResponse | null | undefined,
-      protos.google.bigtable.admin.v2.ISnapshot
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListSnapshotsRequest,
+      callback: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListSnapshotsRequest,
+          protos.google.bigtable.admin.v2.IListSnapshotsResponse|null|undefined,
+          protos.google.bigtable.admin.v2.ISnapshot>): void;
   listSnapshots(
-    request?: protos.google.bigtable.admin.v2.IListSnapshotsRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | PaginationCallback<
+      request?: protos.google.bigtable.admin.v2.IListSnapshotsRequest,
+      optionsOrCallback?: CallOptions|PaginationCallback<
           protos.google.bigtable.admin.v2.IListSnapshotsRequest,
-          | protos.google.bigtable.admin.v2.IListSnapshotsResponse
-          | null
-          | undefined,
-          protos.google.bigtable.admin.v2.ISnapshot
-        >,
-    callback?: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListSnapshotsRequest,
-      protos.google.bigtable.admin.v2.IListSnapshotsResponse | null | undefined,
-      protos.google.bigtable.admin.v2.ISnapshot
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.ISnapshot[],
-      protos.google.bigtable.admin.v2.IListSnapshotsRequest | null,
-      protos.google.bigtable.admin.v2.IListSnapshotsResponse
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IListSnapshotsResponse|null|undefined,
+          protos.google.bigtable.admin.v2.ISnapshot>,
+      callback?: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListSnapshotsRequest,
+          protos.google.bigtable.admin.v2.IListSnapshotsResponse|null|undefined,
+          protos.google.bigtable.admin.v2.ISnapshot>):
+      Promise<[
+        protos.google.bigtable.admin.v2.ISnapshot[],
+        protos.google.bigtable.admin.v2.IListSnapshotsRequest|null,
+        protos.google.bigtable.admin.v2.IListSnapshotsResponse
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
     return this.innerApiCalls.listSnapshots(request, options, callback);
   }
 
-  /**
-   * Equivalent to `method.name.toCamelCase()`, but returns a NodeJS Stream object.
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the cluster for which snapshots should be listed.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
-   *   Use `{cluster} = '-'` to list snapshots for all clusters in an instance,
-   *   e.g., `projects/{project}/instances/{instance}/clusters/-`.
-   * @param {number} request.pageSize
-   *   The maximum number of snapshots to return per page.
-   *   CURRENTLY UNIMPLEMENTED AND IGNORED.
-   * @param {string} request.pageToken
-   *   The value of `next_page_token` returned by a previous call.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Stream}
-   *   An object stream which emits an object representing [Snapshot]{@link google.bigtable.admin.v2.Snapshot} on 'data' event.
-   *   The client library will perform auto-pagination by default: it will call the API as many
-   *   times as needed. Note that it can affect your quota.
-   *   We recommend using `listSnapshotsAsync()`
-   *   method described below for async iteration which you can stop as needed.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
-   *   for more details and examples.
-   */
+/**
+ * Equivalent to `method.name.toCamelCase()`, but returns a NodeJS Stream object.
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the cluster for which snapshots should be
+ *   listed. Values are of the form
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ *   Use `{cluster} = '-'` to list snapshots for all clusters in an instance,
+ *   e.g., `projects/{project}/instances/{instance}/clusters/-`.
+ * @param {number} request.pageSize
+ *   The maximum number of snapshots to return per page.
+ *   CURRENTLY UNIMPLEMENTED AND IGNORED.
+ * @param {string} request.pageToken
+ *   The value of `next_page_token` returned by a previous call.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Stream}
+ *   An object stream which emits an object representing [Snapshot]{@link google.bigtable.admin.v2.Snapshot} on 'data' event.
+ *   The client library will perform auto-pagination by default: it will call the API as many
+ *   times as needed. Note that it can affect your quota.
+ *   We recommend using `listSnapshotsAsync()`
+ *   method described below for async iteration which you can stop as needed.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ */
   listSnapshotsStream(
-    request?: protos.google.bigtable.admin.v2.IListSnapshotsRequest,
-    options?: CallOptions
-  ): Transform {
+      request?: protos.google.bigtable.admin.v2.IListSnapshotsRequest,
+      options?: CallOptions):
+    Transform{
     request = request || {};
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     const defaultCallSettings = this._defaults['listSnapshots'];
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
@@ -2853,48 +2573,49 @@ export class BigtableTableAdminClient {
     );
   }
 
-  /**
-   * Equivalent to `listSnapshots`, but returns an iterable object.
-   *
-   * `for`-`await`-`of` syntax is used with the iterable to get response elements on-demand.
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The unique name of the cluster for which snapshots should be listed.
-   *   Values are of the form
-   *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
-   *   Use `{cluster} = '-'` to list snapshots for all clusters in an instance,
-   *   e.g., `projects/{project}/instances/{instance}/clusters/-`.
-   * @param {number} request.pageSize
-   *   The maximum number of snapshots to return per page.
-   *   CURRENTLY UNIMPLEMENTED AND IGNORED.
-   * @param {string} request.pageToken
-   *   The value of `next_page_token` returned by a previous call.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Object}
-   *   An iterable Object that allows [async iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols).
-   *   When you iterate the returned iterable, each element will be an object representing
-   *   [Snapshot]{@link google.bigtable.admin.v2.Snapshot}. The API will be called under the hood as needed, once per the page,
-   *   so you can stop the iteration when you don't need more results.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
-   *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.list_snapshots.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_ListSnapshots_async
-   */
+/**
+ * Equivalent to `listSnapshots`, but returns an iterable object.
+ *
+ * `for`-`await`-`of` syntax is used with the iterable to get response elements on-demand.
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The unique name of the cluster for which snapshots should be
+ *   listed. Values are of the form
+ *   `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ *   Use `{cluster} = '-'` to list snapshots for all clusters in an instance,
+ *   e.g., `projects/{project}/instances/{instance}/clusters/-`.
+ * @param {number} request.pageSize
+ *   The maximum number of snapshots to return per page.
+ *   CURRENTLY UNIMPLEMENTED AND IGNORED.
+ * @param {string} request.pageToken
+ *   The value of `next_page_token` returned by a previous call.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Object}
+ *   An iterable Object that allows [async iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols).
+ *   When you iterate the returned iterable, each element will be an object representing
+ *   [Snapshot]{@link google.bigtable.admin.v2.Snapshot}. The API will be called under the hood as needed, once per the page,
+ *   so you can stop the iteration when you don't need more results.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.list_snapshots.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_ListSnapshots_async
+ */
   listSnapshotsAsync(
-    request?: protos.google.bigtable.admin.v2.IListSnapshotsRequest,
-    options?: CallOptions
-  ): AsyncIterable<protos.google.bigtable.admin.v2.ISnapshot> {
+      request?: protos.google.bigtable.admin.v2.IListSnapshotsRequest,
+      options?: CallOptions):
+    AsyncIterable<protos.google.bigtable.admin.v2.ISnapshot>{
     request = request || {};
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     const defaultCallSettings = this._defaults['listSnapshots'];
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
@@ -2904,256 +2625,249 @@ export class BigtableTableAdminClient {
       callSettings
     ) as AsyncIterable<protos.google.bigtable.admin.v2.ISnapshot>;
   }
-  /**
-   * Lists Cloud Bigtable backups. Returns both completed and pending
-   * backups.
-   *
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The cluster to list backups from.  Values are of the
-   *   form `projects/{project}/instances/{instance}/clusters/{cluster}`.
-   *   Use `{cluster} = '-'` to list backups for all clusters in an instance,
-   *   e.g., `projects/{project}/instances/{instance}/clusters/-`.
-   * @param {string} request.filter
-   *   A filter expression that filters backups listed in the response.
-   *   The expression must specify the field name, a comparison operator,
-   *   and the value that you want to use for filtering. The value must be a
-   *   string, a number, or a boolean. The comparison operator must be
-   *   <, >, <=, >=, !=, =, or :. Colon ':' represents a HAS operator which is
-   *   roughly synonymous with equality. Filter rules are case insensitive.
-   *
-   *   The fields eligible for filtering are:
-   *     * `name`
-   *     * `source_table`
-   *     * `state`
-   *     * `start_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
-   *     * `end_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
-   *     * `expire_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
-   *     * `size_bytes`
-   *
-   *   To filter on multiple expressions, provide each separate expression within
-   *   parentheses. By default, each expression is an AND expression. However,
-   *   you can include AND, OR, and NOT expressions explicitly.
-   *
-   *   Some examples of using filters are:
-   *
-   *     * `name:"exact"` --> The backup's name is the string "exact".
-   *     * `name:howl` --> The backup's name contains the string "howl".
-   *     * `source_table:prod`
-   *            --> The source_table's name contains the string "prod".
-   *     * `state:CREATING` --> The backup is pending creation.
-   *     * `state:READY` --> The backup is fully created and ready for use.
-   *     * `(name:howl) AND (start_time < \"2018-03-28T14:50:00Z\")`
-   *            --> The backup name contains the string "howl" and start_time
-   *                of the backup is before 2018-03-28T14:50:00Z.
-   *     * `size_bytes > 10000000000` --> The backup's size is greater than 10GB
-   * @param {string} request.orderBy
-   *   An expression for specifying the sort order of the results of the request.
-   *   The string value should specify one or more fields in {@link google.bigtable.admin.v2.Backup|Backup}. The full
-   *   syntax is described at https://aip.dev/132#ordering.
-   *
-   *   Fields supported are:
-   *      * name
-   *      * source_table
-   *      * expire_time
-   *      * start_time
-   *      * end_time
-   *      * size_bytes
-   *      * state
-   *
-   *   For example, "start_time". The default sorting order is ascending.
-   *   To specify descending order for the field, a suffix " desc" should
-   *   be appended to the field name. For example, "start_time desc".
-   *   Redundant space characters in the syntax are insigificant.
-   *
-   *   If order_by is empty, results will be sorted by `start_time` in descending
-   *   order starting from the most recently created backup.
-   * @param {number} request.pageSize
-   *   Number of backups to be returned in the response. If 0 or
-   *   less, defaults to the server's maximum allowed page size.
-   * @param {string} request.pageToken
-   *   If non-empty, `page_token` should contain a
-   *   {@link google.bigtable.admin.v2.ListBackupsResponse.next_page_token|next_page_token} from a
-   *   previous {@link google.bigtable.admin.v2.ListBackupsResponse|ListBackupsResponse} to the same `parent` and with the same
-   *   `filter`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Promise} - The promise which resolves to an array.
-   *   The first element of the array is Array of [Backup]{@link google.bigtable.admin.v2.Backup}.
-   *   The client library will perform auto-pagination by default: it will call the API as many
-   *   times as needed and will merge results from all the pages into this array.
-   *   Note that it can affect your quota.
-   *   We recommend using `listBackupsAsync()`
-   *   method described below for async iteration which you can stop as needed.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
-   *   for more details and examples.
-   */
+ /**
+ * Lists Cloud Bigtable backups. Returns both completed and pending
+ * backups.
+ *
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The cluster to list backups from.  Values are of the
+ *   form `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ *   Use `{cluster} = '-'` to list backups for all clusters in an instance,
+ *   e.g., `projects/{project}/instances/{instance}/clusters/-`.
+ * @param {string} request.filter
+ *   A filter expression that filters backups listed in the response.
+ *   The expression must specify the field name, a comparison operator,
+ *   and the value that you want to use for filtering. The value must be a
+ *   string, a number, or a boolean. The comparison operator must be
+ *   <, >, <=, >=, !=, =, or :. Colon ':' represents a HAS operator which is
+ *   roughly synonymous with equality. Filter rules are case insensitive.
+ *
+ *   The fields eligible for filtering are:
+ *     * `name`
+ *     * `source_table`
+ *     * `state`
+ *     * `start_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
+ *     * `end_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
+ *     * `expire_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
+ *     * `size_bytes`
+ *
+ *   To filter on multiple expressions, provide each separate expression within
+ *   parentheses. By default, each expression is an AND expression. However,
+ *   you can include AND, OR, and NOT expressions explicitly.
+ *
+ *   Some examples of using filters are:
+ *
+ *     * `name:"exact"` --> The backup's name is the string "exact".
+ *     * `name:howl` --> The backup's name contains the string "howl".
+ *     * `source_table:prod`
+ *            --> The source_table's name contains the string "prod".
+ *     * `state:CREATING` --> The backup is pending creation.
+ *     * `state:READY` --> The backup is fully created and ready for use.
+ *     * `(name:howl) AND (start_time < \"2018-03-28T14:50:00Z\")`
+ *            --> The backup name contains the string "howl" and start_time
+ *                of the backup is before 2018-03-28T14:50:00Z.
+ *     * `size_bytes > 10000000000` --> The backup's size is greater than 10GB
+ * @param {string} request.orderBy
+ *   An expression for specifying the sort order of the results of the request.
+ *   The string value should specify one or more fields in
+ *   {@link google.bigtable.admin.v2.Backup|Backup}. The full syntax is described at
+ *   https://aip.dev/132#ordering.
+ *
+ *   Fields supported are:
+ *      * name
+ *      * source_table
+ *      * expire_time
+ *      * start_time
+ *      * end_time
+ *      * size_bytes
+ *      * state
+ *
+ *   For example, "start_time". The default sorting order is ascending.
+ *   To specify descending order for the field, a suffix " desc" should
+ *   be appended to the field name. For example, "start_time desc".
+ *   Redundant space characters in the syntax are insigificant.
+ *
+ *   If order_by is empty, results will be sorted by `start_time` in descending
+ *   order starting from the most recently created backup.
+ * @param {number} request.pageSize
+ *   Number of backups to be returned in the response. If 0 or
+ *   less, defaults to the server's maximum allowed page size.
+ * @param {string} request.pageToken
+ *   If non-empty, `page_token` should contain a
+ *   {@link google.bigtable.admin.v2.ListBackupsResponse.next_page_token|next_page_token}
+ *   from a previous
+ *   {@link google.bigtable.admin.v2.ListBackupsResponse|ListBackupsResponse} to the
+ *   same `parent` and with the same `filter`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Promise} - The promise which resolves to an array.
+ *   The first element of the array is Array of [Backup]{@link google.bigtable.admin.v2.Backup}.
+ *   The client library will perform auto-pagination by default: it will call the API as many
+ *   times as needed and will merge results from all the pages into this array.
+ *   Note that it can affect your quota.
+ *   We recommend using `listBackupsAsync()`
+ *   method described below for async iteration which you can stop as needed.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ */
   listBackups(
-    request?: protos.google.bigtable.admin.v2.IListBackupsRequest,
-    options?: CallOptions
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IBackup[],
-      protos.google.bigtable.admin.v2.IListBackupsRequest | null,
-      protos.google.bigtable.admin.v2.IListBackupsResponse
-    ]
-  >;
+      request?: protos.google.bigtable.admin.v2.IListBackupsRequest,
+      options?: CallOptions):
+      Promise<[
+        protos.google.bigtable.admin.v2.IBackup[],
+        protos.google.bigtable.admin.v2.IListBackupsRequest|null,
+        protos.google.bigtable.admin.v2.IListBackupsResponse
+      ]>;
   listBackups(
-    request: protos.google.bigtable.admin.v2.IListBackupsRequest,
-    options: CallOptions,
-    callback: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListBackupsRequest,
-      protos.google.bigtable.admin.v2.IListBackupsResponse | null | undefined,
-      protos.google.bigtable.admin.v2.IBackup
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListBackupsRequest,
+      options: CallOptions,
+      callback: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListBackupsRequest,
+          protos.google.bigtable.admin.v2.IListBackupsResponse|null|undefined,
+          protos.google.bigtable.admin.v2.IBackup>): void;
   listBackups(
-    request: protos.google.bigtable.admin.v2.IListBackupsRequest,
-    callback: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListBackupsRequest,
-      protos.google.bigtable.admin.v2.IListBackupsResponse | null | undefined,
-      protos.google.bigtable.admin.v2.IBackup
-    >
-  ): void;
+      request: protos.google.bigtable.admin.v2.IListBackupsRequest,
+      callback: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListBackupsRequest,
+          protos.google.bigtable.admin.v2.IListBackupsResponse|null|undefined,
+          protos.google.bigtable.admin.v2.IBackup>): void;
   listBackups(
-    request?: protos.google.bigtable.admin.v2.IListBackupsRequest,
-    optionsOrCallback?:
-      | CallOptions
-      | PaginationCallback<
+      request?: protos.google.bigtable.admin.v2.IListBackupsRequest,
+      optionsOrCallback?: CallOptions|PaginationCallback<
           protos.google.bigtable.admin.v2.IListBackupsRequest,
-          | protos.google.bigtable.admin.v2.IListBackupsResponse
-          | null
-          | undefined,
-          protos.google.bigtable.admin.v2.IBackup
-        >,
-    callback?: PaginationCallback<
-      protos.google.bigtable.admin.v2.IListBackupsRequest,
-      protos.google.bigtable.admin.v2.IListBackupsResponse | null | undefined,
-      protos.google.bigtable.admin.v2.IBackup
-    >
-  ): Promise<
-    [
-      protos.google.bigtable.admin.v2.IBackup[],
-      protos.google.bigtable.admin.v2.IListBackupsRequest | null,
-      protos.google.bigtable.admin.v2.IListBackupsResponse
-    ]
-  > | void {
+          protos.google.bigtable.admin.v2.IListBackupsResponse|null|undefined,
+          protos.google.bigtable.admin.v2.IBackup>,
+      callback?: PaginationCallback<
+          protos.google.bigtable.admin.v2.IListBackupsRequest,
+          protos.google.bigtable.admin.v2.IListBackupsResponse|null|undefined,
+          protos.google.bigtable.admin.v2.IBackup>):
+      Promise<[
+        protos.google.bigtable.admin.v2.IBackup[],
+        protos.google.bigtable.admin.v2.IListBackupsRequest|null,
+        protos.google.bigtable.admin.v2.IListBackupsResponse
+      ]>|void {
     request = request || {};
     let options: CallOptions;
     if (typeof optionsOrCallback === 'function' && callback === undefined) {
       callback = optionsOrCallback;
       options = {};
-    } else {
+    }
+    else {
       options = optionsOrCallback as CallOptions;
     }
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     this.initialize();
     return this.innerApiCalls.listBackups(request, options, callback);
   }
 
-  /**
-   * Equivalent to `method.name.toCamelCase()`, but returns a NodeJS Stream object.
-   * @param {Object} request
-   *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The cluster to list backups from.  Values are of the
-   *   form `projects/{project}/instances/{instance}/clusters/{cluster}`.
-   *   Use `{cluster} = '-'` to list backups for all clusters in an instance,
-   *   e.g., `projects/{project}/instances/{instance}/clusters/-`.
-   * @param {string} request.filter
-   *   A filter expression that filters backups listed in the response.
-   *   The expression must specify the field name, a comparison operator,
-   *   and the value that you want to use for filtering. The value must be a
-   *   string, a number, or a boolean. The comparison operator must be
-   *   <, >, <=, >=, !=, =, or :. Colon ':' represents a HAS operator which is
-   *   roughly synonymous with equality. Filter rules are case insensitive.
-   *
-   *   The fields eligible for filtering are:
-   *     * `name`
-   *     * `source_table`
-   *     * `state`
-   *     * `start_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
-   *     * `end_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
-   *     * `expire_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
-   *     * `size_bytes`
-   *
-   *   To filter on multiple expressions, provide each separate expression within
-   *   parentheses. By default, each expression is an AND expression. However,
-   *   you can include AND, OR, and NOT expressions explicitly.
-   *
-   *   Some examples of using filters are:
-   *
-   *     * `name:"exact"` --> The backup's name is the string "exact".
-   *     * `name:howl` --> The backup's name contains the string "howl".
-   *     * `source_table:prod`
-   *            --> The source_table's name contains the string "prod".
-   *     * `state:CREATING` --> The backup is pending creation.
-   *     * `state:READY` --> The backup is fully created and ready for use.
-   *     * `(name:howl) AND (start_time < \"2018-03-28T14:50:00Z\")`
-   *            --> The backup name contains the string "howl" and start_time
-   *                of the backup is before 2018-03-28T14:50:00Z.
-   *     * `size_bytes > 10000000000` --> The backup's size is greater than 10GB
-   * @param {string} request.orderBy
-   *   An expression for specifying the sort order of the results of the request.
-   *   The string value should specify one or more fields in {@link google.bigtable.admin.v2.Backup|Backup}. The full
-   *   syntax is described at https://aip.dev/132#ordering.
-   *
-   *   Fields supported are:
-   *      * name
-   *      * source_table
-   *      * expire_time
-   *      * start_time
-   *      * end_time
-   *      * size_bytes
-   *      * state
-   *
-   *   For example, "start_time". The default sorting order is ascending.
-   *   To specify descending order for the field, a suffix " desc" should
-   *   be appended to the field name. For example, "start_time desc".
-   *   Redundant space characters in the syntax are insigificant.
-   *
-   *   If order_by is empty, results will be sorted by `start_time` in descending
-   *   order starting from the most recently created backup.
-   * @param {number} request.pageSize
-   *   Number of backups to be returned in the response. If 0 or
-   *   less, defaults to the server's maximum allowed page size.
-   * @param {string} request.pageToken
-   *   If non-empty, `page_token` should contain a
-   *   {@link google.bigtable.admin.v2.ListBackupsResponse.next_page_token|next_page_token} from a
-   *   previous {@link google.bigtable.admin.v2.ListBackupsResponse|ListBackupsResponse} to the same `parent` and with the same
-   *   `filter`.
-   * @param {object} [options]
-   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
-   * @returns {Stream}
-   *   An object stream which emits an object representing [Backup]{@link google.bigtable.admin.v2.Backup} on 'data' event.
-   *   The client library will perform auto-pagination by default: it will call the API as many
-   *   times as needed. Note that it can affect your quota.
-   *   We recommend using `listBackupsAsync()`
-   *   method described below for async iteration which you can stop as needed.
-   *   Please see the
-   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
-   *   for more details and examples.
-   */
+/**
+ * Equivalent to `method.name.toCamelCase()`, but returns a NodeJS Stream object.
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The cluster to list backups from.  Values are of the
+ *   form `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ *   Use `{cluster} = '-'` to list backups for all clusters in an instance,
+ *   e.g., `projects/{project}/instances/{instance}/clusters/-`.
+ * @param {string} request.filter
+ *   A filter expression that filters backups listed in the response.
+ *   The expression must specify the field name, a comparison operator,
+ *   and the value that you want to use for filtering. The value must be a
+ *   string, a number, or a boolean. The comparison operator must be
+ *   <, >, <=, >=, !=, =, or :. Colon ':' represents a HAS operator which is
+ *   roughly synonymous with equality. Filter rules are case insensitive.
+ *
+ *   The fields eligible for filtering are:
+ *     * `name`
+ *     * `source_table`
+ *     * `state`
+ *     * `start_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
+ *     * `end_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
+ *     * `expire_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
+ *     * `size_bytes`
+ *
+ *   To filter on multiple expressions, provide each separate expression within
+ *   parentheses. By default, each expression is an AND expression. However,
+ *   you can include AND, OR, and NOT expressions explicitly.
+ *
+ *   Some examples of using filters are:
+ *
+ *     * `name:"exact"` --> The backup's name is the string "exact".
+ *     * `name:howl` --> The backup's name contains the string "howl".
+ *     * `source_table:prod`
+ *            --> The source_table's name contains the string "prod".
+ *     * `state:CREATING` --> The backup is pending creation.
+ *     * `state:READY` --> The backup is fully created and ready for use.
+ *     * `(name:howl) AND (start_time < \"2018-03-28T14:50:00Z\")`
+ *            --> The backup name contains the string "howl" and start_time
+ *                of the backup is before 2018-03-28T14:50:00Z.
+ *     * `size_bytes > 10000000000` --> The backup's size is greater than 10GB
+ * @param {string} request.orderBy
+ *   An expression for specifying the sort order of the results of the request.
+ *   The string value should specify one or more fields in
+ *   {@link google.bigtable.admin.v2.Backup|Backup}. The full syntax is described at
+ *   https://aip.dev/132#ordering.
+ *
+ *   Fields supported are:
+ *      * name
+ *      * source_table
+ *      * expire_time
+ *      * start_time
+ *      * end_time
+ *      * size_bytes
+ *      * state
+ *
+ *   For example, "start_time". The default sorting order is ascending.
+ *   To specify descending order for the field, a suffix " desc" should
+ *   be appended to the field name. For example, "start_time desc".
+ *   Redundant space characters in the syntax are insigificant.
+ *
+ *   If order_by is empty, results will be sorted by `start_time` in descending
+ *   order starting from the most recently created backup.
+ * @param {number} request.pageSize
+ *   Number of backups to be returned in the response. If 0 or
+ *   less, defaults to the server's maximum allowed page size.
+ * @param {string} request.pageToken
+ *   If non-empty, `page_token` should contain a
+ *   {@link google.bigtable.admin.v2.ListBackupsResponse.next_page_token|next_page_token}
+ *   from a previous
+ *   {@link google.bigtable.admin.v2.ListBackupsResponse|ListBackupsResponse} to the
+ *   same `parent` and with the same `filter`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Stream}
+ *   An object stream which emits an object representing [Backup]{@link google.bigtable.admin.v2.Backup} on 'data' event.
+ *   The client library will perform auto-pagination by default: it will call the API as many
+ *   times as needed. Note that it can affect your quota.
+ *   We recommend using `listBackupsAsync()`
+ *   method described below for async iteration which you can stop as needed.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ */
   listBackupsStream(
-    request?: protos.google.bigtable.admin.v2.IListBackupsRequest,
-    options?: CallOptions
-  ): Transform {
+      request?: protos.google.bigtable.admin.v2.IListBackupsRequest,
+      options?: CallOptions):
+    Transform{
     request = request || {};
     options = options || {};
     options.otherArgs = options.otherArgs || {};
     options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
     const defaultCallSettings = this._defaults['listBackups'];
     const callSettings = defaultCallSettings.merge(options);
     this.initialize();
@@ -3164,113 +2878,373 @@ export class BigtableTableAdminClient {
     );
   }
 
-  /**
-   * Equivalent to `listBackups`, but returns an iterable object.
+/**
+ * Equivalent to `listBackups`, but returns an iterable object.
+ *
+ * `for`-`await`-`of` syntax is used with the iterable to get response elements on-demand.
+ * @param {Object} request
+ *   The request object that will be sent.
+ * @param {string} request.parent
+ *   Required. The cluster to list backups from.  Values are of the
+ *   form `projects/{project}/instances/{instance}/clusters/{cluster}`.
+ *   Use `{cluster} = '-'` to list backups for all clusters in an instance,
+ *   e.g., `projects/{project}/instances/{instance}/clusters/-`.
+ * @param {string} request.filter
+ *   A filter expression that filters backups listed in the response.
+ *   The expression must specify the field name, a comparison operator,
+ *   and the value that you want to use for filtering. The value must be a
+ *   string, a number, or a boolean. The comparison operator must be
+ *   <, >, <=, >=, !=, =, or :. Colon ':' represents a HAS operator which is
+ *   roughly synonymous with equality. Filter rules are case insensitive.
+ *
+ *   The fields eligible for filtering are:
+ *     * `name`
+ *     * `source_table`
+ *     * `state`
+ *     * `start_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
+ *     * `end_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
+ *     * `expire_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
+ *     * `size_bytes`
+ *
+ *   To filter on multiple expressions, provide each separate expression within
+ *   parentheses. By default, each expression is an AND expression. However,
+ *   you can include AND, OR, and NOT expressions explicitly.
+ *
+ *   Some examples of using filters are:
+ *
+ *     * `name:"exact"` --> The backup's name is the string "exact".
+ *     * `name:howl` --> The backup's name contains the string "howl".
+ *     * `source_table:prod`
+ *            --> The source_table's name contains the string "prod".
+ *     * `state:CREATING` --> The backup is pending creation.
+ *     * `state:READY` --> The backup is fully created and ready for use.
+ *     * `(name:howl) AND (start_time < \"2018-03-28T14:50:00Z\")`
+ *            --> The backup name contains the string "howl" and start_time
+ *                of the backup is before 2018-03-28T14:50:00Z.
+ *     * `size_bytes > 10000000000` --> The backup's size is greater than 10GB
+ * @param {string} request.orderBy
+ *   An expression for specifying the sort order of the results of the request.
+ *   The string value should specify one or more fields in
+ *   {@link google.bigtable.admin.v2.Backup|Backup}. The full syntax is described at
+ *   https://aip.dev/132#ordering.
+ *
+ *   Fields supported are:
+ *      * name
+ *      * source_table
+ *      * expire_time
+ *      * start_time
+ *      * end_time
+ *      * size_bytes
+ *      * state
+ *
+ *   For example, "start_time". The default sorting order is ascending.
+ *   To specify descending order for the field, a suffix " desc" should
+ *   be appended to the field name. For example, "start_time desc".
+ *   Redundant space characters in the syntax are insigificant.
+ *
+ *   If order_by is empty, results will be sorted by `start_time` in descending
+ *   order starting from the most recently created backup.
+ * @param {number} request.pageSize
+ *   Number of backups to be returned in the response. If 0 or
+ *   less, defaults to the server's maximum allowed page size.
+ * @param {string} request.pageToken
+ *   If non-empty, `page_token` should contain a
+ *   {@link google.bigtable.admin.v2.ListBackupsResponse.next_page_token|next_page_token}
+ *   from a previous
+ *   {@link google.bigtable.admin.v2.ListBackupsResponse|ListBackupsResponse} to the
+ *   same `parent` and with the same `filter`.
+ * @param {object} [options]
+ *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+ * @returns {Object}
+ *   An iterable Object that allows [async iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols).
+ *   When you iterate the returned iterable, each element will be an object representing
+ *   [Backup]{@link google.bigtable.admin.v2.Backup}. The API will be called under the hood as needed, once per the page,
+ *   so you can stop the iteration when you don't need more results.
+ *   Please see the
+ *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
+ *   for more details and examples.
+ * @example <caption>include:samples/generated/v2/bigtable_table_admin.list_backups.js</caption>
+ * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_ListBackups_async
+ */
+  listBackupsAsync(
+      request?: protos.google.bigtable.admin.v2.IListBackupsRequest,
+      options?: CallOptions):
+    AsyncIterable<protos.google.bigtable.admin.v2.IBackup>{
+    request = request || {};
+    options = options || {};
+    options.otherArgs = options.otherArgs || {};
+    options.otherArgs.headers = options.otherArgs.headers || {};
+    options.otherArgs.headers[
+      'x-goog-request-params'
+    ] = gax.routingHeader.fromParams({
+      'parent': request.parent || '',
+    });
+    const defaultCallSettings = this._defaults['listBackups'];
+    const callSettings = defaultCallSettings.merge(options);
+    this.initialize();
+    return this.descriptors.page.listBackups.asyncIterate(
+      this.innerApiCalls['listBackups'] as GaxCall,
+      request as unknown as RequestType,
+      callSettings
+    ) as AsyncIterable<protos.google.bigtable.admin.v2.IBackup>;
+  }
+/**
+   * Gets information about a location.
+   *
+   * @param {Object} request
+   *   The request object that will be sent.
+   * @param {string} request.name
+   *   Resource name for the location.
+   * @param {object} [options]
+   *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
+   * @returns {Promise} - The promise which resolves to an array.
+   *   The first element of the array is an object representing [Location]{@link google.cloud.location.Location}.
+   *   Please see the
+   *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#regular-methods)
+   *   for more details and examples.
+   * @example
+   * ```
+   * const [response] = await client.getLocation(request);
+   * ```
+   */
+  getLocation(
+    request: LocationProtos.google.cloud.location.IGetLocationRequest,
+    options?:
+      | gax.CallOptions
+      | Callback<
+          LocationProtos.google.cloud.location.ILocation,
+          | LocationProtos.google.cloud.location.IGetLocationRequest
+          | null
+          | undefined,
+          {} | null | undefined
+        >,
+    callback?: Callback<
+      LocationProtos.google.cloud.location.ILocation,
+      | LocationProtos.google.cloud.location.IGetLocationRequest
+      | null
+      | undefined,
+      {} | null | undefined
+    >
+  ): Promise<LocationProtos.google.cloud.location.ILocation> {
+    return this.locationsClient.getLocation(request, options, callback);
+  }
+
+/**
+   * Lists information about the supported locations for this service. Returns an iterable object.
    *
    * `for`-`await`-`of` syntax is used with the iterable to get response elements on-demand.
    * @param {Object} request
    *   The request object that will be sent.
-   * @param {string} request.parent
-   *   Required. The cluster to list backups from.  Values are of the
-   *   form `projects/{project}/instances/{instance}/clusters/{cluster}`.
-   *   Use `{cluster} = '-'` to list backups for all clusters in an instance,
-   *   e.g., `projects/{project}/instances/{instance}/clusters/-`.
+   * @param {string} request.name
+   *   The resource that owns the locations collection, if applicable.
    * @param {string} request.filter
-   *   A filter expression that filters backups listed in the response.
-   *   The expression must specify the field name, a comparison operator,
-   *   and the value that you want to use for filtering. The value must be a
-   *   string, a number, or a boolean. The comparison operator must be
-   *   <, >, <=, >=, !=, =, or :. Colon ':' represents a HAS operator which is
-   *   roughly synonymous with equality. Filter rules are case insensitive.
-   *
-   *   The fields eligible for filtering are:
-   *     * `name`
-   *     * `source_table`
-   *     * `state`
-   *     * `start_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
-   *     * `end_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
-   *     * `expire_time` (and values are of the format YYYY-MM-DDTHH:MM:SSZ)
-   *     * `size_bytes`
-   *
-   *   To filter on multiple expressions, provide each separate expression within
-   *   parentheses. By default, each expression is an AND expression. However,
-   *   you can include AND, OR, and NOT expressions explicitly.
-   *
-   *   Some examples of using filters are:
-   *
-   *     * `name:"exact"` --> The backup's name is the string "exact".
-   *     * `name:howl` --> The backup's name contains the string "howl".
-   *     * `source_table:prod`
-   *            --> The source_table's name contains the string "prod".
-   *     * `state:CREATING` --> The backup is pending creation.
-   *     * `state:READY` --> The backup is fully created and ready for use.
-   *     * `(name:howl) AND (start_time < \"2018-03-28T14:50:00Z\")`
-   *            --> The backup name contains the string "howl" and start_time
-   *                of the backup is before 2018-03-28T14:50:00Z.
-   *     * `size_bytes > 10000000000` --> The backup's size is greater than 10GB
-   * @param {string} request.orderBy
-   *   An expression for specifying the sort order of the results of the request.
-   *   The string value should specify one or more fields in {@link google.bigtable.admin.v2.Backup|Backup}. The full
-   *   syntax is described at https://aip.dev/132#ordering.
-   *
-   *   Fields supported are:
-   *      * name
-   *      * source_table
-   *      * expire_time
-   *      * start_time
-   *      * end_time
-   *      * size_bytes
-   *      * state
-   *
-   *   For example, "start_time". The default sorting order is ascending.
-   *   To specify descending order for the field, a suffix " desc" should
-   *   be appended to the field name. For example, "start_time desc".
-   *   Redundant space characters in the syntax are insigificant.
-   *
-   *   If order_by is empty, results will be sorted by `start_time` in descending
-   *   order starting from the most recently created backup.
+   *   The standard list filter.
    * @param {number} request.pageSize
-   *   Number of backups to be returned in the response. If 0 or
-   *   less, defaults to the server's maximum allowed page size.
+   *   The standard list page size.
    * @param {string} request.pageToken
-   *   If non-empty, `page_token` should contain a
-   *   {@link google.bigtable.admin.v2.ListBackupsResponse.next_page_token|next_page_token} from a
-   *   previous {@link google.bigtable.admin.v2.ListBackupsResponse|ListBackupsResponse} to the same `parent` and with the same
-   *   `filter`.
+   *   The standard list page token.
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Object}
    *   An iterable Object that allows [async iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols).
    *   When you iterate the returned iterable, each element will be an object representing
-   *   [Backup]{@link google.bigtable.admin.v2.Backup}. The API will be called under the hood as needed, once per the page,
+   *   [Location]{@link google.cloud.location.Location}. The API will be called under the hood as needed, once per the page,
    *   so you can stop the iteration when you don't need more results.
    *   Please see the
    *   [documentation](https://github.com/googleapis/gax-nodejs/blob/master/client-libraries.md#auto-pagination)
    *   for more details and examples.
-   * @example <caption>include:samples/generated/v2/bigtable_table_admin.list_backups.js</caption>
-   * region_tag:bigtableadmin_v2_generated_BigtableTableAdmin_ListBackups_async
-   */
-  listBackupsAsync(
-    request?: protos.google.bigtable.admin.v2.IListBackupsRequest,
+   * @example
+   * ```
+   * const iterable = client.listLocationsAsync(request);
+   * for await (const response of iterable) {
+   *   // process response
+   * }
+   * ```
+   */
+  listLocationsAsync(
+    request: LocationProtos.google.cloud.location.IListLocationsRequest,
     options?: CallOptions
-  ): AsyncIterable<protos.google.bigtable.admin.v2.IBackup> {
-    request = request || {};
-    options = options || {};
-    options.otherArgs = options.otherArgs || {};
-    options.otherArgs.headers = options.otherArgs.headers || {};
-    options.otherArgs.headers['x-goog-request-params'] =
-      gax.routingHeader.fromParams({
-        parent: request.parent || '',
-      });
-    const defaultCallSettings = this._defaults['listBackups'];
-    const callSettings = defaultCallSettings.merge(options);
-    this.initialize();
-    return this.descriptors.page.listBackups.asyncIterate(
-      this.innerApiCalls['listBackups'] as GaxCall,
-      request as unknown as RequestType,
-      callSettings
-    ) as AsyncIterable<protos.google.bigtable.admin.v2.IBackup>;
+  ): AsyncIterable<LocationProtos.google.cloud.location.ILocation> {
+    return this.locationsClient.listLocationsAsync(request, options);
+  }
+
+/**
+   * Gets the latest state of a long-running operation.  Clients can use this
+   * method to poll the operation result at intervals as recommended by the API
+   * service.
+   *
+   * @param {Object} request - The request object that will be sent.
+   * @param {string} request.name - The name of the operation resource.
+   * @param {Object=} options
+   *   Optional parameters. You can override the default settings for this call,
+   *   e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+   *   https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+   *   details.
+   * @param {function(?Error, ?Object)=} callback
+   *   The function which will be called with the result of the API call.
+   *
+   *   The second parameter to the callback is an object representing
+   * [google.longrunning.Operation]{@link
+   * external:"google.longrunning.Operation"}.
+   * @return {Promise} - The promise which resolves to an array.
+   *   The first element of the array is an object representing
+   * [google.longrunning.Operation]{@link
+   * external:"google.longrunning.Operation"}. The promise has a method named
+   * "cancel" which cancels the ongoing API call.
+   *
+   * @example
+   * ```
+   * const client = longrunning.operationsClient();
+   * const name = '';
+   * const [response] = await client.getOperation({name});
+   * // doThingsWith(response)
+   * ```
+   */
+  getOperation(
+    request: protos.google.longrunning.GetOperationRequest,
+    options?:
+      | gax.CallOptions
+      | Callback<
+          protos.google.longrunning.Operation,
+          protos.google.longrunning.GetOperationRequest,
+          {} | null | undefined
+        >,
+    callback?: Callback<
+      protos.google.longrunning.Operation,
+      protos.google.longrunning.GetOperationRequest,
+      {} | null | undefined
+    >
+  ): Promise<[protos.google.longrunning.Operation]> {
+    return this.operationsClient.getOperation(request, options, callback);
+  }
+  /**
+   * Lists operations that match the specified filter in the request. If the
+   * server doesn't support this method, it returns `UNIMPLEMENTED`. Returns an iterable object.
+   *
+   * For-await-of syntax is used with the iterable to recursively get response element on-demand.
+   *
+   * @param {Object} request - The request object that will be sent.
+   * @param {string} request.name - The name of the operation collection.
+   * @param {string} request.filter - The standard list filter.
+   * @param {number=} request.pageSize -
+   *   The maximum number of resources contained in the underlying API
+   *   response. If page streaming is performed per-resource, this
+   *   parameter does not affect the return value. If page streaming is
+   *   performed per-page, this determines the maximum number of
+   *   resources in a page.
+   * @param {Object=} options
+   *   Optional parameters. You can override the default settings for this call,
+   *   e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+   *   https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+   *   details.
+   * @returns {Object}
+   *   An iterable Object that conforms to @link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols.
+   *
+   * @example
+   * ```
+   * const client = longrunning.operationsClient();
+   * for await (const response of client.listOperationsAsync(request));
+   * // doThingsWith(response)
+   * ```
+   */
+  listOperationsAsync(
+    request: protos.google.longrunning.ListOperationsRequest,
+    options?: gax.CallOptions
+  ): AsyncIterable<protos.google.longrunning.ListOperationsResponse> {
+    return this.operationsClient.listOperationsAsync(request, options);
+  }
+  /**
+   * Starts asynchronous cancellation on a long-running operation.  The server
+   * makes a best effort to cancel the operation, but success is not
+   * guaranteed.  If the server doesn't support this method, it returns
+   * `google.rpc.Code.UNIMPLEMENTED`.  Clients can use
+   * {@link Operations.GetOperation} or
+   * other methods to check whether the cancellation succeeded or whether the
+   * operation completed despite cancellation. On successful cancellation,
+   * the operation is not deleted; instead, it becomes an operation with
+   * an {@link Operation.error} value with a {@link google.rpc.Status.code} of
+   * 1, corresponding to `Code.CANCELLED`.
+   *
+   * @param {Object} request - The request object that will be sent.
+   * @param {string} request.name - The name of the operation resource to be cancelled.
+   * @param {Object=} options
+   *   Optional parameters. You can override the default settings for this call,
+   * e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+   * https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+   * details.
+   * @param {function(?Error)=} callback
+   *   The function which will be called with the result of the API call.
+   * @return {Promise} - The promise which resolves when API call finishes.
+   *   The promise has a method named "cancel" which cancels the ongoing API
+   * call.
+   *
+   * @example
+   * ```
+   * const client = longrunning.operationsClient();
+   * await client.cancelOperation({name: ''});
+   * ```
+   */
+   cancelOperation(
+    request: protos.google.longrunning.CancelOperationRequest,
+    options?:
+      | gax.CallOptions
+      | Callback<
+          protos.google.protobuf.Empty,
+          protos.google.longrunning.CancelOperationRequest,
+          {} | undefined | null
+        >,
+    callback?: Callback<
+      protos.google.longrunning.CancelOperationRequest,
+      protos.google.protobuf.Empty,
+      {} | undefined | null
+    >
+  ): Promise<protos.google.protobuf.Empty> {
+    return this.operationsClient.cancelOperation(request, options, callback);
+  }
+
+  /**
+   * Deletes a long-running operation. This method indicates that the client is
+   * no longer interested in the operation result. It does not cancel the
+   * operation. If the server doesn't support this method, it returns
+   * `google.rpc.Code.UNIMPLEMENTED`.
+   *
+   * @param {Object} request - The request object that will be sent.
+   * @param {string} request.name - The name of the operation resource to be deleted.
+   * @param {Object=} options
+   *   Optional parameters. You can override the default settings for this call,
+   * e.g, timeout, retries, paginations, etc. See [gax.CallOptions]{@link
+   * https://googleapis.github.io/gax-nodejs/global.html#CallOptions} for the
+   * details.
+   * @param {function(?Error)=} callback
+   *   The function which will be called with the result of the API call.
+   * @return {Promise} - The promise which resolves when API call finishes.
+   *   The promise has a method named "cancel" which cancels the ongoing API
+   * call.
+   *
+   * @example
+   * ```
+   * const client = longrunning.operationsClient();
+   * await client.deleteOperation({name: ''});
+   * ```
+   */
+  deleteOperation(
+    request: protos.google.longrunning.DeleteOperationRequest,
+    options?:
+      | gax.CallOptions
+      | Callback<
+          protos.google.protobuf.Empty,
+          protos.google.longrunning.DeleteOperationRequest,
+          {} | null | undefined
+        >,
+    callback?: Callback<
+      protos.google.protobuf.Empty,
+      protos.google.longrunning.DeleteOperationRequest,
+      {} | null | undefined
+    >
+  ): Promise<protos.google.protobuf.Empty> {
+    return this.operationsClient.deleteOperation(request, options, callback);
   }
+
   // --------------------
   // -- Path templates --
   // --------------------
@@ -3283,7 +3257,7 @@ export class BigtableTableAdminClient {
    * @param {string} app_profile
    * @returns {string} Resource name string.
    */
-  appProfilePath(project: string, instance: string, appProfile: string) {
+  appProfilePath(project:string,instance:string,appProfile:string) {
     return this.pathTemplates.appProfilePathTemplate.render({
       project: project,
       instance: instance,
@@ -3299,8 +3273,7 @@ export class BigtableTableAdminClient {
    * @returns {string} A string representing the project.
    */
   matchProjectFromAppProfileName(appProfileName: string) {
-    return this.pathTemplates.appProfilePathTemplate.match(appProfileName)
-      .project;
+    return this.pathTemplates.appProfilePathTemplate.match(appProfileName).project;
   }
 
   /**
@@ -3311,8 +3284,7 @@ export class BigtableTableAdminClient {
    * @returns {string} A string representing the instance.
    */
   matchInstanceFromAppProfileName(appProfileName: string) {
-    return this.pathTemplates.appProfilePathTemplate.match(appProfileName)
-      .instance;
+    return this.pathTemplates.appProfilePathTemplate.match(appProfileName).instance;
   }
 
   /**
@@ -3323,8 +3295,7 @@ export class BigtableTableAdminClient {
    * @returns {string} A string representing the app_profile.
    */
   matchAppProfileFromAppProfileName(appProfileName: string) {
-    return this.pathTemplates.appProfilePathTemplate.match(appProfileName)
-      .app_profile;
+    return this.pathTemplates.appProfilePathTemplate.match(appProfileName).app_profile;
   }
 
   /**
@@ -3336,12 +3307,7 @@ export class BigtableTableAdminClient {
    * @param {string} backup
    * @returns {string} Resource name string.
    */
-  backupPath(
-    project: string,
-    instance: string,
-    cluster: string,
-    backup: string
-  ) {
+  backupPath(project:string,instance:string,cluster:string,backup:string) {
     return this.pathTemplates.backupPathTemplate.render({
       project: project,
       instance: instance,
@@ -3402,7 +3368,7 @@ export class BigtableTableAdminClient {
    * @param {string} cluster
    * @returns {string} Resource name string.
    */
-  clusterPath(project: string, instance: string, cluster: string) {
+  clusterPath(project:string,instance:string,cluster:string) {
     return this.pathTemplates.clusterPathTemplate.render({
       project: project,
       instance: instance,
@@ -3452,12 +3418,7 @@ export class BigtableTableAdminClient {
    * @param {string} hot_tablet
    * @returns {string} Resource name string.
    */
-  hotTabletPath(
-    project: string,
-    instance: string,
-    cluster: string,
-    hotTablet: string
-  ) {
+  hotTabletPath(project:string,instance:string,cluster:string,hotTablet:string) {
     return this.pathTemplates.hotTabletPathTemplate.render({
       project: project,
       instance: instance,
@@ -3474,8 +3435,7 @@ export class BigtableTableAdminClient {
    * @returns {string} A string representing the project.
    */
   matchProjectFromHotTabletName(hotTabletName: string) {
-    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName)
-      .project;
+    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName).project;
   }
 
   /**
@@ -3486,8 +3446,7 @@ export class BigtableTableAdminClient {
    * @returns {string} A string representing the instance.
    */
   matchInstanceFromHotTabletName(hotTabletName: string) {
-    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName)
-      .instance;
+    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName).instance;
   }
 
   /**
@@ -3498,8 +3457,7 @@ export class BigtableTableAdminClient {
    * @returns {string} A string representing the cluster.
    */
   matchClusterFromHotTabletName(hotTabletName: string) {
-    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName)
-      .cluster;
+    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName).cluster;
   }
 
   /**
@@ -3510,8 +3468,7 @@ export class BigtableTableAdminClient {
    * @returns {string} A string representing the hot_tablet.
    */
   matchHotTabletFromHotTabletName(hotTabletName: string) {
-    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName)
-      .hot_tablet;
+    return this.pathTemplates.hotTabletPathTemplate.match(hotTabletName).hot_tablet;
   }
 
   /**
@@ -3521,7 +3478,7 @@ export class BigtableTableAdminClient {
    * @param {string} instance
    * @returns {string} Resource name string.
    */
-  instancePath(project: string, instance: string) {
+  instancePath(project:string,instance:string) {
     return this.pathTemplates.instancePathTemplate.render({
       project: project,
       instance: instance,
@@ -3559,12 +3516,7 @@ export class BigtableTableAdminClient {
    * @param {string} snapshot
    * @returns {string} Resource name string.
    */
-  snapshotPath(
-    project: string,
-    instance: string,
-    cluster: string,
-    snapshot: string
-  ) {
+  snapshotPath(project:string,instance:string,cluster:string,snapshot:string) {
     return this.pathTemplates.snapshotPathTemplate.render({
       project: project,
       instance: instance,
@@ -3625,7 +3577,7 @@ export class BigtableTableAdminClient {
    * @param {string} table
    * @returns {string} Resource name string.
    */
-  tablePath(project: string, instance: string, table: string) {
+  tablePath(project:string,instance:string,table:string) {
     return this.pathTemplates.tablePathTemplate.render({
       project: project,
       instance: instance,
@@ -3677,6 +3629,7 @@ export class BigtableTableAdminClient {
       return this.bigtableTableAdminStub.then(stub => {
         this._terminated = true;
         stub.close();
+        this.locationsClient.close();
         this.operationsClient.close();
       });
     }
diff --git a/src/v2/bigtable_table_admin_client_config.json b/src/v2/bigtable_table_admin_client_config.json
index b6f59ab62..0a7f3ec40 100644
--- a/src/v2/bigtable_table_admin_client_config.json
+++ b/src/v2/bigtable_table_admin_client_config.json
@@ -35,6 +35,7 @@
           "retry_params_name": "default"
         },
         "CreateTableFromSnapshot": {
+          "timeout_millis": 60000,
           "retry_codes_name": "non_idempotent",
           "retry_params_name": "default"
         },
@@ -53,6 +54,10 @@
           "retry_codes_name": "non_idempotent",
           "retry_params_name": "default"
         },
+        "UndeleteTable": {
+          "retry_codes_name": "non_idempotent",
+          "retry_params_name": "default"
+        },
         "ModifyColumnFamilies": {
           "timeout_millis": 300000,
           "retry_codes_name": "non_idempotent",
@@ -74,6 +79,7 @@
           "retry_params_name": "264268458a9e88347dbacbd9398202ff5885a40b"
         },
         "SnapshotTable": {
+          "timeout_millis": 60000,
           "retry_codes_name": "non_idempotent",
           "retry_params_name": "default"
         },
@@ -93,32 +99,30 @@
           "retry_params_name": "default"
         },
         "CreateBackup": {
-          "timeout_millis": 60000,
           "retry_codes_name": "non_idempotent",
           "retry_params_name": "default"
         },
         "GetBackup": {
-          "timeout_millis": 60000,
-          "retry_codes_name": "idempotent",
-          "retry_params_name": "264268458a9e88347dbacbd9398202ff5885a40b"
+          "retry_codes_name": "non_idempotent",
+          "retry_params_name": "default"
         },
         "UpdateBackup": {
-          "timeout_millis": 60000,
           "retry_codes_name": "non_idempotent",
           "retry_params_name": "default"
         },
         "DeleteBackup": {
-          "timeout_millis": 60000,
           "retry_codes_name": "non_idempotent",
           "retry_params_name": "default"
         },
         "ListBackups": {
-          "timeout_millis": 60000,
-          "retry_codes_name": "idempotent",
-          "retry_params_name": "264268458a9e88347dbacbd9398202ff5885a40b"
+          "retry_codes_name": "non_idempotent",
+          "retry_params_name": "default"
         },
         "RestoreTable": {
-          "timeout_millis": 60000,
+          "retry_codes_name": "non_idempotent",
+          "retry_params_name": "default"
+        },
+        "CopyBackup": {
           "retry_codes_name": "non_idempotent",
           "retry_params_name": "default"
         },
diff --git a/src/v2/gapic_metadata.json b/src/v2/gapic_metadata.json
index 8faad0b19..01d726ace 100644
--- a/src/v2/gapic_metadata.json
+++ b/src/v2/gapic_metadata.json
@@ -322,6 +322,11 @@
                 "createTableFromSnapshot"
               ]
             },
+            "UndeleteTable": {
+              "methods": [
+                "undeleteTable"
+              ]
+            },
             "SnapshotTable": {
               "methods": [
                 "snapshotTable"
@@ -337,6 +342,11 @@
                 "restoreTable"
               ]
             },
+            "CopyBackup": {
+              "methods": [
+                "copyBackup"
+              ]
+            },
             "ListTables": {
               "methods": [
                 "listTables",
@@ -443,6 +453,11 @@
                 "createTableFromSnapshot"
               ]
             },
+            "UndeleteTable": {
+              "methods": [
+                "undeleteTable"
+              ]
+            },
             "SnapshotTable": {
               "methods": [
                 "snapshotTable"
@@ -458,6 +473,11 @@
                 "restoreTable"
               ]
             },
+            "CopyBackup": {
+              "methods": [
+                "copyBackup"
+              ]
+            },
             "ListTables": {
               "methods": [
                 "listTables",
diff --git a/src/v2/index.ts b/src/v2/index.ts
index 5ad012de7..28ff835fe 100644
--- a/src/v2/index.ts
+++ b/src/v2/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2019 Google LLC
+// 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.
@@ -18,4 +18,3 @@
 
 export {BigtableInstanceAdminClient} from './bigtable_instance_admin_client';
 export {BigtableTableAdminClient} from './bigtable_table_admin_client';
-export {BigtableClient} from './bigtable_client';
diff --git a/test/gapic_bigtable_instance_admin_v2.ts b/test/gapic_bigtable_instance_admin_v2.ts
index 0b37f0ad8..838b3780f 100644
--- a/test/gapic_bigtable_instance_admin_v2.ts
+++ b/test/gapic_bigtable_instance_admin_v2.ts
@@ -20,4232 +20,3552 @@ import * as protos from '../protos/protos';
 import * as assert from 'assert';
 import * as sinon from 'sinon';
 import {SinonStub} from 'sinon';
-import {describe, it} from 'mocha';
+import { describe, it } from 'mocha';
 import * as bigtableinstanceadminModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {protobuf, LROperation, operationsProtos} from 'google-gax';
+import {protobuf, LROperation, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (
-    instance.constructor as typeof protobuf.Message
-  ).toObject(instance as protobuf.Message<T>, {defaults: true});
-  return (instance.constructor as typeof protobuf.Message).fromObject(
-    filledObject
-  ) as T;
+    const filledObject = (instance.constructor as typeof protobuf.Message)
+        .toObject(instance as protobuf.Message<T>, {defaults: true});
+    return (instance.constructor as typeof protobuf.Message).fromObject(filledObject) as T;
 }
 
 function stubSimpleCall<ResponseType>(response?: ResponseType, error?: Error) {
-  return error
-    ? sinon.stub().rejects(error)
-    : sinon.stub().resolves([response]);
+    return error ? sinon.stub().rejects(error) : sinon.stub().resolves([response]);
 }
 
-function stubSimpleCallWithCallback<ResponseType>(
-  response?: ResponseType,
-  error?: Error
-) {
-  return error
-    ? sinon.stub().callsArgWith(2, error)
-    : sinon.stub().callsArgWith(2, null, response);
+function stubSimpleCallWithCallback<ResponseType>(response?: ResponseType, error?: Error) {
+    return error ? sinon.stub().callsArgWith(2, error) : sinon.stub().callsArgWith(2, null, response);
 }
 
-function stubLongRunningCall<ResponseType>(
-  response?: ResponseType,
-  callError?: Error,
-  lroError?: Error
-) {
-  const innerStub = lroError
-    ? sinon.stub().rejects(lroError)
-    : sinon.stub().resolves([response]);
-  const mockOperation = {
-    promise: innerStub,
-  };
-  return callError
-    ? sinon.stub().rejects(callError)
-    : sinon.stub().resolves([mockOperation]);
+function stubLongRunningCall<ResponseType>(response?: ResponseType, callError?: Error, lroError?: Error) {
+    const innerStub = lroError ? sinon.stub().rejects(lroError) : sinon.stub().resolves([response]);
+    const mockOperation = {
+        promise: innerStub,
+    };
+    return callError ? sinon.stub().rejects(callError) : sinon.stub().resolves([mockOperation]);
 }
 
-function stubLongRunningCallWithCallback<ResponseType>(
-  response?: ResponseType,
-  callError?: Error,
-  lroError?: Error
-) {
-  const innerStub = lroError
-    ? sinon.stub().rejects(lroError)
-    : sinon.stub().resolves([response]);
-  const mockOperation = {
-    promise: innerStub,
-  };
-  return callError
-    ? sinon.stub().callsArgWith(2, callError)
-    : sinon.stub().callsArgWith(2, null, mockOperation);
+function stubLongRunningCallWithCallback<ResponseType>(response?: ResponseType, callError?: Error, lroError?: Error) {
+    const innerStub = lroError ? sinon.stub().rejects(lroError) : sinon.stub().resolves([response]);
+    const mockOperation = {
+        promise: innerStub,
+    };
+    return callError ? sinon.stub().callsArgWith(2, callError) : sinon.stub().callsArgWith(2, null, mockOperation);
 }
 
-function stubPageStreamingCall<ResponseType>(
-  responses?: ResponseType[],
-  error?: Error
-) {
-  const pagingStub = sinon.stub();
-  if (responses) {
-    for (let i = 0; i < responses.length; ++i) {
-      pagingStub.onCall(i).callsArgWith(2, null, responses[i]);
+function stubPageStreamingCall<ResponseType>(responses?: ResponseType[], error?: Error) {
+    const pagingStub = sinon.stub();
+    if (responses) {
+        for (let i = 0; i < responses.length; ++i) {
+            pagingStub.onCall(i).callsArgWith(2, null, responses[i]);
+        }
     }
-  }
-  const transformStub = error
-    ? sinon.stub().callsArgWith(2, error)
-    : pagingStub;
-  const mockStream = new PassThrough({
-    objectMode: true,
-    transform: transformStub,
-  });
-  // trigger as many responses as needed
-  if (responses) {
-    for (let i = 0; i < responses.length; ++i) {
-      setImmediate(() => {
-        mockStream.write({});
-      });
+    const transformStub = error ? sinon.stub().callsArgWith(2, error) : pagingStub;
+    const mockStream = new PassThrough({
+        objectMode: true,
+        transform: transformStub,
+    });
+    // trigger as many responses as needed
+    if (responses) {
+        for (let i = 0; i < responses.length; ++i) {
+            setImmediate(() => { mockStream.write({}); });
+        }
+        setImmediate(() => { mockStream.end(); });
+    } else {
+        setImmediate(() => { mockStream.write({}); });
+        setImmediate(() => { mockStream.end(); });
     }
-    setImmediate(() => {
-      mockStream.end();
-    });
-  } else {
-    setImmediate(() => {
-      mockStream.write({});
-    });
-    setImmediate(() => {
-      mockStream.end();
-    });
-  }
-  return sinon.stub().returns(mockStream);
+    return sinon.stub().returns(mockStream);
 }
 
-function stubAsyncIterationCall<ResponseType>(
-  responses?: ResponseType[],
-  error?: Error
-) {
-  let counter = 0;
-  const asyncIterable = {
-    [Symbol.asyncIterator]() {
-      return {
-        async next() {
-          if (error) {
-            return Promise.reject(error);
-          }
-          if (counter >= responses!.length) {
-            return Promise.resolve({done: true, value: undefined});
-          }
-          return Promise.resolve({done: false, value: responses![counter++]});
-        },
-      };
-    },
-  };
-  return sinon.stub().returns(asyncIterable);
+function stubAsyncIterationCall<ResponseType>(responses?: ResponseType[], error?: Error) {
+    let counter = 0;
+    const asyncIterable = {
+        [Symbol.asyncIterator]() {
+            return {
+                async next() {
+                    if (error) {
+                        return Promise.reject(error);
+                    }
+                    if (counter >= responses!.length) {
+                        return Promise.resolve({done: true, value: undefined});
+                    }
+                    return Promise.resolve({done: false, value: responses![counter++]});
+                }
+            };
+        }
+    };
+    return sinon.stub().returns(asyncIterable);
 }
 
 describe('v2.BigtableInstanceAdminClient', () => {
-  it('has servicePath', () => {
-    const servicePath =
-      bigtableinstanceadminModule.v2.BigtableInstanceAdminClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint =
-      bigtableinstanceadminModule.v2.BigtableInstanceAdminClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port =
-      bigtableinstanceadminModule.v2.BigtableInstanceAdminClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client =
-      new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient();
-    assert(client);
-  });
-
-  it('should create a client with gRPC fallback', () => {
-    const client =
-      new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-        fallback: true,
-      });
-    assert(client);
-  });
-
-  it('has initialize method and supports deferred initialization', async () => {
-    const client =
-      new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    assert.strictEqual(client.bigtableInstanceAdminStub, undefined);
-    await client.initialize();
-    assert(client.bigtableInstanceAdminStub);
-  });
-
-  it('has close method for the initialized client', done => {
-    const client =
-      new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    client.initialize();
-    assert(client.bigtableInstanceAdminStub);
-    client.close().then(() => {
-      done();
-    });
-  });
-
-  it('has close method for the non-initialized client', done => {
-    const client =
-      new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    assert.strictEqual(client.bigtableInstanceAdminStub, undefined);
-    client.close().then(() => {
-      done();
-    });
-  });
-
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
-
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client =
-      new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
-      });
-    });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
-  });
-
-  describe('getInstance', () => {
-    it('invokes getInstance without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetInstanceRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Instance()
-      );
-      client.innerApiCalls.getInstance = stubSimpleCall(expectedResponse);
-      const [response] = await client.getInstance(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes getInstance without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetInstanceRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Instance()
-      );
-      client.innerApiCalls.getInstance =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.getInstance(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.IInstance | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes getInstance with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetInstanceRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.getInstance = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.getInstance(request), expectedError);
-      assert(
-        (client.innerApiCalls.getInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes getInstance with closed client', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetInstanceRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.getInstance(request), expectedError);
-    });
-  });
-
-  describe('listInstances', () => {
-    it('invokes listInstances without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListInstancesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListInstancesResponse()
-      );
-      client.innerApiCalls.listInstances = stubSimpleCall(expectedResponse);
-      const [response] = await client.listInstances(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listInstances as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes listInstances without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListInstancesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListInstancesResponse()
-      );
-      client.innerApiCalls.listInstances =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.listInstances(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.IListInstancesResponse | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listInstances as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes listInstances with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListInstancesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.listInstances = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.listInstances(request), expectedError);
-      assert(
-        (client.innerApiCalls.listInstances as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes listInstances with closed client', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListInstancesRequest()
-      );
-      request.parent = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.listInstances(request), expectedError);
-    });
-  });
-
-  describe('updateInstance', () => {
-    it('invokes updateInstance without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Instance()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Instance()
-      );
-      client.innerApiCalls.updateInstance = stubSimpleCall(expectedResponse);
-      const [response] = await client.updateInstance(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.updateInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes updateInstance without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Instance()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Instance()
-      );
-      client.innerApiCalls.updateInstance =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.updateInstance(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.IInstance | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.updateInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes updateInstance with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Instance()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.updateInstance = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.updateInstance(request), expectedError);
-      assert(
-        (client.innerApiCalls.updateInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes updateInstance with closed client', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Instance()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.updateInstance(request), expectedError);
-    });
-  });
-
-  describe('deleteInstance', () => {
-    it('invokes deleteInstance without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteInstanceRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.deleteInstance = stubSimpleCall(expectedResponse);
-      const [response] = await client.deleteInstance(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.deleteInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes deleteInstance without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteInstanceRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.deleteInstance =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.deleteInstance(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.protobuf.IEmpty | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.deleteInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes deleteInstance with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteInstanceRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.deleteInstance = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.deleteInstance(request), expectedError);
-      assert(
-        (client.innerApiCalls.deleteInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes deleteInstance with closed client', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteInstanceRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.deleteInstance(request), expectedError);
-    });
-  });
-
-  describe('getCluster', () => {
-    it('invokes getCluster without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetClusterRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Cluster()
-      );
-      client.innerApiCalls.getCluster = stubSimpleCall(expectedResponse);
-      const [response] = await client.getCluster(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes getCluster without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetClusterRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Cluster()
-      );
-      client.innerApiCalls.getCluster =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.getCluster(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.ICluster | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes getCluster with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetClusterRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.getCluster = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.getCluster(request), expectedError);
-      assert(
-        (client.innerApiCalls.getCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes getCluster with closed client', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetClusterRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.getCluster(request), expectedError);
-    });
-  });
-
-  describe('listClusters', () => {
-    it('invokes listClusters without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListClustersRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListClustersResponse()
-      );
-      client.innerApiCalls.listClusters = stubSimpleCall(expectedResponse);
-      const [response] = await client.listClusters(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listClusters as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes listClusters without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListClustersRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListClustersResponse()
-      );
-      client.innerApiCalls.listClusters =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.listClusters(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.IListClustersResponse | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listClusters as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes listClusters with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListClustersRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.listClusters = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.listClusters(request), expectedError);
-      assert(
-        (client.innerApiCalls.listClusters as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+    it('has servicePath', () => {
+        const servicePath = bigtableinstanceadminModule.v2.BigtableInstanceAdminClient.servicePath;
+        assert(servicePath);
     });
 
-    it('invokes listClusters with closed client', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListClustersRequest()
-      );
-      request.parent = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.listClusters(request), expectedError);
-    });
-  });
-
-  describe('deleteCluster', () => {
-    it('invokes deleteCluster without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteClusterRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.deleteCluster = stubSimpleCall(expectedResponse);
-      const [response] = await client.deleteCluster(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.deleteCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes deleteCluster without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteClusterRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.deleteCluster =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.deleteCluster(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.protobuf.IEmpty | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.deleteCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes deleteCluster with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteClusterRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.deleteCluster = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.deleteCluster(request), expectedError);
-      assert(
-        (client.innerApiCalls.deleteCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes deleteCluster with closed client', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteClusterRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.deleteCluster(request), expectedError);
-    });
-  });
-
-  describe('createAppProfile', () => {
-    it('invokes createAppProfile without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateAppProfileRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.AppProfile()
-      );
-      client.innerApiCalls.createAppProfile = stubSimpleCall(expectedResponse);
-      const [response] = await client.createAppProfile(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.createAppProfile as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes createAppProfile without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateAppProfileRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.AppProfile()
-      );
-      client.innerApiCalls.createAppProfile =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.createAppProfile(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.IAppProfile | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.createAppProfile as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes createAppProfile with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateAppProfileRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.createAppProfile = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.createAppProfile(request), expectedError);
-      assert(
-        (client.innerApiCalls.createAppProfile as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+    it('has apiEndpoint', () => {
+        const apiEndpoint = bigtableinstanceadminModule.v2.BigtableInstanceAdminClient.apiEndpoint;
+        assert(apiEndpoint);
     });
 
-    it('invokes createAppProfile with closed client', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateAppProfileRequest()
-      );
-      request.parent = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.createAppProfile(request), expectedError);
-    });
-  });
-
-  describe('getAppProfile', () => {
-    it('invokes getAppProfile without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetAppProfileRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.AppProfile()
-      );
-      client.innerApiCalls.getAppProfile = stubSimpleCall(expectedResponse);
-      const [response] = await client.getAppProfile(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getAppProfile as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes getAppProfile without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetAppProfileRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.AppProfile()
-      );
-      client.innerApiCalls.getAppProfile =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.getAppProfile(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.IAppProfile | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getAppProfile as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes getAppProfile with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetAppProfileRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.getAppProfile = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.getAppProfile(request), expectedError);
-      assert(
-        (client.innerApiCalls.getAppProfile as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes getAppProfile with closed client', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetAppProfileRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.getAppProfile(request), expectedError);
-    });
-  });
-
-  describe('deleteAppProfile', () => {
-    it('invokes deleteAppProfile without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteAppProfileRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.deleteAppProfile = stubSimpleCall(expectedResponse);
-      const [response] = await client.deleteAppProfile(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.deleteAppProfile as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+    it('has port', () => {
+        const port = bigtableinstanceadminModule.v2.BigtableInstanceAdminClient.port;
+        assert(port);
+        assert(typeof port === 'number');
     });
 
-    it('invokes deleteAppProfile without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteAppProfileRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.deleteAppProfile =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.deleteAppProfile(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.protobuf.IEmpty | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.deleteAppProfile as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
+    it('should create a client with no option', () => {
+        const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient();
+        assert(client);
     });
 
-    it('invokes deleteAppProfile with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteAppProfileRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.deleteAppProfile = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.deleteAppProfile(request), expectedError);
-      assert(
-        (client.innerApiCalls.deleteAppProfile as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes deleteAppProfile with closed client', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteAppProfileRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.deleteAppProfile(request), expectedError);
-    });
-  });
-
-  describe('getIamPolicy', () => {
-    it('invokes getIamPolicy without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.GetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.iam.v1.Policy()
-      );
-      client.innerApiCalls.getIamPolicy = stubSimpleCall(expectedResponse);
-      const [response] = await client.getIamPolicy(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getIamPolicy as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes getIamPolicy without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.GetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.iam.v1.Policy()
-      );
-      client.innerApiCalls.getIamPolicy =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.getIamPolicy(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.iam.v1.IPolicy | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getIamPolicy as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes getIamPolicy with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.GetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.getIamPolicy = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.getIamPolicy(request), expectedError);
-      assert(
-        (client.innerApiCalls.getIamPolicy as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes getIamPolicy with closed client', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.GetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.getIamPolicy(request), expectedError);
-    });
-  });
-
-  describe('setIamPolicy', () => {
-    it('invokes setIamPolicy without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.SetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.iam.v1.Policy()
-      );
-      client.innerApiCalls.setIamPolicy = stubSimpleCall(expectedResponse);
-      const [response] = await client.setIamPolicy(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.setIamPolicy as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes setIamPolicy without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.SetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.iam.v1.Policy()
-      );
-      client.innerApiCalls.setIamPolicy =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.setIamPolicy(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.iam.v1.IPolicy | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.setIamPolicy as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes setIamPolicy with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.SetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.setIamPolicy = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.setIamPolicy(request), expectedError);
-      assert(
-        (client.innerApiCalls.setIamPolicy as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes setIamPolicy with closed client', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.SetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.setIamPolicy(request), expectedError);
-    });
-  });
-
-  describe('testIamPermissions', () => {
-    it('invokes testIamPermissions without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.TestIamPermissionsRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.iam.v1.TestIamPermissionsResponse()
-      );
-      client.innerApiCalls.testIamPermissions =
-        stubSimpleCall(expectedResponse);
-      const [response] = await client.testIamPermissions(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.testIamPermissions as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes testIamPermissions without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.TestIamPermissionsRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.iam.v1.TestIamPermissionsResponse()
-      );
-      client.innerApiCalls.testIamPermissions =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.testIamPermissions(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.iam.v1.ITestIamPermissionsResponse | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.testIamPermissions as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes testIamPermissions with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.TestIamPermissionsRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.testIamPermissions = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.testIamPermissions(request), expectedError);
-      assert(
-        (client.innerApiCalls.testIamPermissions as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes testIamPermissions with closed client', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.TestIamPermissionsRequest()
-      );
-      request.resource = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.testIamPermissions(request), expectedError);
-    });
-  });
-
-  describe('createInstance', () => {
-    it('invokes createInstance without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateInstanceRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.createInstance =
-        stubLongRunningCall(expectedResponse);
-      const [operation] = await client.createInstance(request);
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.createInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes createInstance without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateInstanceRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.createInstance =
-        stubLongRunningCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.createInstance(
-          request,
-          (
-            err?: Error | null,
-            result?: LROperation<
-              protos.google.bigtable.admin.v2.IInstance,
-              protos.google.bigtable.admin.v2.ICreateInstanceMetadata
-            > | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const operation = (await promise) as LROperation<
-        protos.google.bigtable.admin.v2.IInstance,
-        protos.google.bigtable.admin.v2.ICreateInstanceMetadata
-      >;
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.createInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes createInstance with call error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateInstanceRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.createInstance = stubLongRunningCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.createInstance(request), expectedError);
-      assert(
-        (client.innerApiCalls.createInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes createInstance with LRO error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateInstanceRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.createInstance = stubLongRunningCall(
-        undefined,
-        undefined,
-        expectedError
-      );
-      const [operation] = await client.createInstance(request);
-      await assert.rejects(operation.promise(), expectedError);
-      assert(
-        (client.innerApiCalls.createInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes checkCreateInstanceProgress without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const expectedResponse = generateSampleMessage(
-        new operationsProtos.google.longrunning.Operation()
-      );
-      expectedResponse.name = 'test';
-      expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
-      expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')};
-
-      client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
-      const decodedOperation = await client.checkCreateInstanceProgress(
-        expectedResponse.name
-      );
-      assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
-      assert(decodedOperation.metadata);
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-
-    it('invokes checkCreateInstanceProgress with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const expectedError = new Error('expected');
-
-      client.operationsClient.getOperation = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(
-        client.checkCreateInstanceProgress(''),
-        expectedError
-      );
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-  });
-
-  describe('partialUpdateInstance', () => {
-    it('invokes partialUpdateInstance without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.PartialUpdateInstanceRequest()
-      );
-      request.instance = {};
-      request.instance.name = '';
-      const expectedHeaderRequestParams = 'instance.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.partialUpdateInstance =
-        stubLongRunningCall(expectedResponse);
-      const [operation] = await client.partialUpdateInstance(request);
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.partialUpdateInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+    it('should create a client with gRPC fallback', () => {
+        const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+            fallback: true,
+        });
+        assert(client);
     });
 
-    it('invokes partialUpdateInstance without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.PartialUpdateInstanceRequest()
-      );
-      request.instance = {};
-      request.instance.name = '';
-      const expectedHeaderRequestParams = 'instance.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.partialUpdateInstance =
-        stubLongRunningCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.partialUpdateInstance(
-          request,
-          (
-            err?: Error | null,
-            result?: LROperation<
-              protos.google.bigtable.admin.v2.IInstance,
-              protos.google.bigtable.admin.v2.IUpdateInstanceMetadata
-            > | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
+    it('has initialize method and supports deferred initialization', async () => {
+        const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+        assert.strictEqual(client.bigtableInstanceAdminStub, undefined);
+        await client.initialize();
+        assert(client.bigtableInstanceAdminStub);
+    });
+
+    it('has close method for the initialized client', done => {
+        const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+        client.initialize();
+        assert(client.bigtableInstanceAdminStub);
+        client.close().then(() => {
+            done();
+        });
+    });
+
+    it('has close method for the non-initialized client', done => {
+        const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+        assert.strictEqual(client.bigtableInstanceAdminStub, undefined);
+        client.close().then(() => {
+            done();
+        });
+    });
+
+    it('has getProjectId method', async () => {
+        const fakeProjectId = 'fake-project-id';
+        const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+        client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+        const result = await client.getProjectId();
+        assert.strictEqual(result, fakeProjectId);
+        assert((client.auth.getProjectId as SinonStub).calledWithExactly());
+    });
+
+    it('has getProjectId method with callback', async () => {
+        const fakeProjectId = 'fake-project-id';
+        const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+        client.auth.getProjectId = sinon.stub().callsArgWith(0, null, fakeProjectId);
+        const promise = new Promise((resolve, reject) => {
+            client.getProjectId((err?: Error|null, projectId?: string|null) => {
+                if (err) {
+                    reject(err);
+                } else {
+                    resolve(projectId);
+                }
+            });
+        });
+        const result = await promise;
+        assert.strictEqual(result, fakeProjectId);
+    });
+
+    describe('getInstance', () => {
+        it('invokes getInstance without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetInstanceRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Instance());
+            client.innerApiCalls.getInstance = stubSimpleCall(expectedResponse);
+            const [response] = await client.getInstance(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes getInstance without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetInstanceRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Instance());
+            client.innerApiCalls.getInstance = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.getInstance(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.IInstance|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes getInstance with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetInstanceRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.getInstance = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.getInstance(request), expectedError);
+            assert((client.innerApiCalls.getInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes getInstance with closed client', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetInstanceRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.getInstance(request), expectedError);
+        });
+    });
+
+    describe('listInstances', () => {
+        it('invokes listInstances without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListInstancesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.ListInstancesResponse());
+            client.innerApiCalls.listInstances = stubSimpleCall(expectedResponse);
+            const [response] = await client.listInstances(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listInstances as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes listInstances without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListInstancesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.ListInstancesResponse());
+            client.innerApiCalls.listInstances = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.listInstances(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.IListInstancesResponse|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listInstances as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes listInstances with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListInstancesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.listInstances = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.listInstances(request), expectedError);
+            assert((client.innerApiCalls.listInstances as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes listInstances with closed client', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListInstancesRequest());
+            request.parent = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.listInstances(request), expectedError);
+        });
+    });
+
+    describe('updateInstance', () => {
+        it('invokes updateInstance without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.Instance());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Instance());
+            client.innerApiCalls.updateInstance = stubSimpleCall(expectedResponse);
+            const [response] = await client.updateInstance(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.updateInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes updateInstance without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.Instance());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Instance());
+            client.innerApiCalls.updateInstance = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.updateInstance(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.IInstance|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.updateInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes updateInstance with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.Instance());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.updateInstance = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.updateInstance(request), expectedError);
+            assert((client.innerApiCalls.updateInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes updateInstance with closed client', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.Instance());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.updateInstance(request), expectedError);
+        });
+    });
+
+    describe('deleteInstance', () => {
+        it('invokes deleteInstance without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteInstanceRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.deleteInstance = stubSimpleCall(expectedResponse);
+            const [response] = await client.deleteInstance(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.deleteInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes deleteInstance without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteInstanceRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.deleteInstance = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.deleteInstance(
+                    request,
+                    (err?: Error|null, result?: protos.google.protobuf.IEmpty|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.deleteInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes deleteInstance with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteInstanceRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.deleteInstance = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.deleteInstance(request), expectedError);
+            assert((client.innerApiCalls.deleteInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes deleteInstance with closed client', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteInstanceRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.deleteInstance(request), expectedError);
+        });
+    });
+
+    describe('getCluster', () => {
+        it('invokes getCluster without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetClusterRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Cluster());
+            client.innerApiCalls.getCluster = stubSimpleCall(expectedResponse);
+            const [response] = await client.getCluster(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes getCluster without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetClusterRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Cluster());
+            client.innerApiCalls.getCluster = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.getCluster(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.ICluster|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes getCluster with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetClusterRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.getCluster = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.getCluster(request), expectedError);
+            assert((client.innerApiCalls.getCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes getCluster with closed client', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetClusterRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.getCluster(request), expectedError);
+        });
+    });
+
+    describe('listClusters', () => {
+        it('invokes listClusters without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListClustersRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.ListClustersResponse());
+            client.innerApiCalls.listClusters = stubSimpleCall(expectedResponse);
+            const [response] = await client.listClusters(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listClusters as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes listClusters without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListClustersRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.ListClustersResponse());
+            client.innerApiCalls.listClusters = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.listClusters(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.IListClustersResponse|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listClusters as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes listClusters with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListClustersRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.listClusters = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.listClusters(request), expectedError);
+            assert((client.innerApiCalls.listClusters as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes listClusters with closed client', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListClustersRequest());
+            request.parent = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.listClusters(request), expectedError);
+        });
+    });
+
+    describe('deleteCluster', () => {
+        it('invokes deleteCluster without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteClusterRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.deleteCluster = stubSimpleCall(expectedResponse);
+            const [response] = await client.deleteCluster(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.deleteCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes deleteCluster without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteClusterRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.deleteCluster = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.deleteCluster(
+                    request,
+                    (err?: Error|null, result?: protos.google.protobuf.IEmpty|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.deleteCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes deleteCluster with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteClusterRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.deleteCluster = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.deleteCluster(request), expectedError);
+            assert((client.innerApiCalls.deleteCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes deleteCluster with closed client', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteClusterRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.deleteCluster(request), expectedError);
+        });
+    });
+
+    describe('createAppProfile', () => {
+        it('invokes createAppProfile without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateAppProfileRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile());
+            client.innerApiCalls.createAppProfile = stubSimpleCall(expectedResponse);
+            const [response] = await client.createAppProfile(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.createAppProfile as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes createAppProfile without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateAppProfileRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile());
+            client.innerApiCalls.createAppProfile = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.createAppProfile(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.IAppProfile|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.createAppProfile as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes createAppProfile with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateAppProfileRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.createAppProfile = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.createAppProfile(request), expectedError);
+            assert((client.innerApiCalls.createAppProfile as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes createAppProfile with closed client', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateAppProfileRequest());
+            request.parent = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.createAppProfile(request), expectedError);
+        });
+    });
+
+    describe('getAppProfile', () => {
+        it('invokes getAppProfile without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetAppProfileRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile());
+            client.innerApiCalls.getAppProfile = stubSimpleCall(expectedResponse);
+            const [response] = await client.getAppProfile(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getAppProfile as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes getAppProfile without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetAppProfileRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile());
+            client.innerApiCalls.getAppProfile = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.getAppProfile(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.IAppProfile|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getAppProfile as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes getAppProfile with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetAppProfileRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.getAppProfile = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.getAppProfile(request), expectedError);
+            assert((client.innerApiCalls.getAppProfile as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes getAppProfile with closed client', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetAppProfileRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.getAppProfile(request), expectedError);
+        });
+    });
+
+    describe('deleteAppProfile', () => {
+        it('invokes deleteAppProfile without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteAppProfileRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.deleteAppProfile = stubSimpleCall(expectedResponse);
+            const [response] = await client.deleteAppProfile(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.deleteAppProfile as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes deleteAppProfile without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteAppProfileRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.deleteAppProfile = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.deleteAppProfile(
+                    request,
+                    (err?: Error|null, result?: protos.google.protobuf.IEmpty|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.deleteAppProfile as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes deleteAppProfile with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteAppProfileRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.deleteAppProfile = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.deleteAppProfile(request), expectedError);
+            assert((client.innerApiCalls.deleteAppProfile as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes deleteAppProfile with closed client', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteAppProfileRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.deleteAppProfile(request), expectedError);
+        });
+    });
+
+    describe('getIamPolicy', () => {
+        it('invokes getIamPolicy without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.GetIamPolicyRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.iam.v1.Policy());
+            client.innerApiCalls.getIamPolicy = stubSimpleCall(expectedResponse);
+            const [response] = await client.getIamPolicy(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getIamPolicy as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes getIamPolicy without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.GetIamPolicyRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.iam.v1.Policy());
+            client.innerApiCalls.getIamPolicy = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.getIamPolicy(
+                    request,
+                    (err?: Error|null, result?: protos.google.iam.v1.IPolicy|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getIamPolicy as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes getIamPolicy with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.GetIamPolicyRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.getIamPolicy = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.getIamPolicy(request), expectedError);
+            assert((client.innerApiCalls.getIamPolicy as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes getIamPolicy with closed client', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.GetIamPolicyRequest());
+            request.resource = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.getIamPolicy(request), expectedError);
+        });
+    });
+
+    describe('setIamPolicy', () => {
+        it('invokes setIamPolicy without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.SetIamPolicyRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.iam.v1.Policy());
+            client.innerApiCalls.setIamPolicy = stubSimpleCall(expectedResponse);
+            const [response] = await client.setIamPolicy(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.setIamPolicy as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes setIamPolicy without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.SetIamPolicyRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.iam.v1.Policy());
+            client.innerApiCalls.setIamPolicy = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.setIamPolicy(
+                    request,
+                    (err?: Error|null, result?: protos.google.iam.v1.IPolicy|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.setIamPolicy as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes setIamPolicy with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.SetIamPolicyRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.setIamPolicy = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.setIamPolicy(request), expectedError);
+            assert((client.innerApiCalls.setIamPolicy as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes setIamPolicy with closed client', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.SetIamPolicyRequest());
+            request.resource = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.setIamPolicy(request), expectedError);
+        });
+    });
+
+    describe('testIamPermissions', () => {
+        it('invokes testIamPermissions without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.TestIamPermissionsRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.iam.v1.TestIamPermissionsResponse());
+            client.innerApiCalls.testIamPermissions = stubSimpleCall(expectedResponse);
+            const [response] = await client.testIamPermissions(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.testIamPermissions as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes testIamPermissions without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.TestIamPermissionsRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.iam.v1.TestIamPermissionsResponse());
+            client.innerApiCalls.testIamPermissions = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.testIamPermissions(
+                    request,
+                    (err?: Error|null, result?: protos.google.iam.v1.ITestIamPermissionsResponse|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.testIamPermissions as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes testIamPermissions with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.TestIamPermissionsRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.testIamPermissions = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.testIamPermissions(request), expectedError);
+            assert((client.innerApiCalls.testIamPermissions as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes testIamPermissions with closed client', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.TestIamPermissionsRequest());
+            request.resource = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.testIamPermissions(request), expectedError);
+        });
+    });
+
+    describe('createInstance', () => {
+        it('invokes createInstance without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateInstanceRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.createInstance = stubLongRunningCall(expectedResponse);
+            const [operation] = await client.createInstance(request);
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.createInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes createInstance without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateInstanceRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.createInstance = stubLongRunningCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.createInstance(
+                    request,
+                    (err?: Error|null,
+                     result?: LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.ICreateInstanceMetadata>|null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const operation = await promise as LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.ICreateInstanceMetadata>;
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.createInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes createInstance with call error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateInstanceRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.createInstance = stubLongRunningCall(undefined, expectedError);
+            await assert.rejects(client.createInstance(request), expectedError);
+            assert((client.innerApiCalls.createInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes createInstance with LRO error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateInstanceRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.createInstance = stubLongRunningCall(undefined, undefined, expectedError);
+            const [operation] = await client.createInstance(request);
+            await assert.rejects(operation.promise(), expectedError);
+            assert((client.innerApiCalls.createInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes checkCreateInstanceProgress without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedResponse = generateSampleMessage(new operationsProtos.google.longrunning.Operation());
+            expectedResponse.name = 'test';
+            expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
+            expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')}
+
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const decodedOperation = await client.checkCreateInstanceProgress(expectedResponse.name);
+            assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
+            assert(decodedOperation.metadata);
+            assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        });
+
+        it('invokes checkCreateInstanceProgress with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedError = new Error('expected');
+
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.checkCreateInstanceProgress(''), expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
+    });
+
+    describe('partialUpdateInstance', () => {
+        it('invokes partialUpdateInstance without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.PartialUpdateInstanceRequest());
+            request.instance = {};
+            request.instance.name = '';
+            const expectedHeaderRequestParams = "instance.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.partialUpdateInstance = stubLongRunningCall(expectedResponse);
+            const [operation] = await client.partialUpdateInstance(request);
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.partialUpdateInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes partialUpdateInstance without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.PartialUpdateInstanceRequest());
+            request.instance = {};
+            request.instance.name = '';
+            const expectedHeaderRequestParams = "instance.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.partialUpdateInstance = stubLongRunningCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.partialUpdateInstance(
+                    request,
+                    (err?: Error|null,
+                     result?: LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.IUpdateInstanceMetadata>|null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const operation = await promise as LROperation<protos.google.bigtable.admin.v2.IInstance, protos.google.bigtable.admin.v2.IUpdateInstanceMetadata>;
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.partialUpdateInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes partialUpdateInstance with call error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.PartialUpdateInstanceRequest());
+            request.instance = {};
+            request.instance.name = '';
+            const expectedHeaderRequestParams = "instance.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.partialUpdateInstance = stubLongRunningCall(undefined, expectedError);
+            await assert.rejects(client.partialUpdateInstance(request), expectedError);
+            assert((client.innerApiCalls.partialUpdateInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes partialUpdateInstance with LRO error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.PartialUpdateInstanceRequest());
+            request.instance = {};
+            request.instance.name = '';
+            const expectedHeaderRequestParams = "instance.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.partialUpdateInstance = stubLongRunningCall(undefined, undefined, expectedError);
+            const [operation] = await client.partialUpdateInstance(request);
+            await assert.rejects(operation.promise(), expectedError);
+            assert((client.innerApiCalls.partialUpdateInstance as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes checkPartialUpdateInstanceProgress without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedResponse = generateSampleMessage(new operationsProtos.google.longrunning.Operation());
+            expectedResponse.name = 'test';
+            expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
+            expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')}
+
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const decodedOperation = await client.checkPartialUpdateInstanceProgress(expectedResponse.name);
+            assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
+            assert(decodedOperation.metadata);
+            assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        });
+
+        it('invokes checkPartialUpdateInstanceProgress with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedError = new Error('expected');
+
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.checkPartialUpdateInstanceProgress(''), expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
+    });
+
+    describe('createCluster', () => {
+        it('invokes createCluster without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateClusterRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.createCluster = stubLongRunningCall(expectedResponse);
+            const [operation] = await client.createCluster(request);
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.createCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes createCluster without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateClusterRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.createCluster = stubLongRunningCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.createCluster(
+                    request,
+                    (err?: Error|null,
+                     result?: LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.ICreateClusterMetadata>|null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const operation = await promise as LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.ICreateClusterMetadata>;
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.createCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes createCluster with call error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateClusterRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.createCluster = stubLongRunningCall(undefined, expectedError);
+            await assert.rejects(client.createCluster(request), expectedError);
+            assert((client.innerApiCalls.createCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes createCluster with LRO error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateClusterRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.createCluster = stubLongRunningCall(undefined, undefined, expectedError);
+            const [operation] = await client.createCluster(request);
+            await assert.rejects(operation.promise(), expectedError);
+            assert((client.innerApiCalls.createCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes checkCreateClusterProgress without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedResponse = generateSampleMessage(new operationsProtos.google.longrunning.Operation());
+            expectedResponse.name = 'test';
+            expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
+            expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')}
+
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const decodedOperation = await client.checkCreateClusterProgress(expectedResponse.name);
+            assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
+            assert(decodedOperation.metadata);
+            assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        });
+
+        it('invokes checkCreateClusterProgress with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedError = new Error('expected');
+
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.checkCreateClusterProgress(''), expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
+    });
+
+    describe('updateCluster', () => {
+        it('invokes updateCluster without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.Cluster());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.updateCluster = stubLongRunningCall(expectedResponse);
+            const [operation] = await client.updateCluster(request);
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.updateCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes updateCluster without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.Cluster());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.updateCluster = stubLongRunningCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.updateCluster(
+                    request,
+                    (err?: Error|null,
+                     result?: LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IUpdateClusterMetadata>|null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const operation = await promise as LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IUpdateClusterMetadata>;
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.updateCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes updateCluster with call error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.Cluster());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.updateCluster = stubLongRunningCall(undefined, expectedError);
+            await assert.rejects(client.updateCluster(request), expectedError);
+            assert((client.innerApiCalls.updateCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes updateCluster with LRO error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.Cluster());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.updateCluster = stubLongRunningCall(undefined, undefined, expectedError);
+            const [operation] = await client.updateCluster(request);
+            await assert.rejects(operation.promise(), expectedError);
+            assert((client.innerApiCalls.updateCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes checkUpdateClusterProgress without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedResponse = generateSampleMessage(new operationsProtos.google.longrunning.Operation());
+            expectedResponse.name = 'test';
+            expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
+            expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')}
+
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const decodedOperation = await client.checkUpdateClusterProgress(expectedResponse.name);
+            assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
+            assert(decodedOperation.metadata);
+            assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        });
+
+        it('invokes checkUpdateClusterProgress with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedError = new Error('expected');
+
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.checkUpdateClusterProgress(''), expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
+    });
+
+    describe('partialUpdateCluster', () => {
+        it('invokes partialUpdateCluster without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.PartialUpdateClusterRequest());
+            request.cluster = {};
+            request.cluster.name = '';
+            const expectedHeaderRequestParams = "cluster.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.partialUpdateCluster = stubLongRunningCall(expectedResponse);
+            const [operation] = await client.partialUpdateCluster(request);
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.partialUpdateCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes partialUpdateCluster without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.PartialUpdateClusterRequest());
+            request.cluster = {};
+            request.cluster.name = '';
+            const expectedHeaderRequestParams = "cluster.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.partialUpdateCluster = stubLongRunningCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.partialUpdateCluster(
+                    request,
+                    (err?: Error|null,
+                     result?: LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata>|null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const operation = await promise as LROperation<protos.google.bigtable.admin.v2.ICluster, protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata>;
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.partialUpdateCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes partialUpdateCluster with call error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.PartialUpdateClusterRequest());
+            request.cluster = {};
+            request.cluster.name = '';
+            const expectedHeaderRequestParams = "cluster.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.partialUpdateCluster = stubLongRunningCall(undefined, expectedError);
+            await assert.rejects(client.partialUpdateCluster(request), expectedError);
+            assert((client.innerApiCalls.partialUpdateCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes partialUpdateCluster with LRO error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.PartialUpdateClusterRequest());
+            request.cluster = {};
+            request.cluster.name = '';
+            const expectedHeaderRequestParams = "cluster.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.partialUpdateCluster = stubLongRunningCall(undefined, undefined, expectedError);
+            const [operation] = await client.partialUpdateCluster(request);
+            await assert.rejects(operation.promise(), expectedError);
+            assert((client.innerApiCalls.partialUpdateCluster as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes checkPartialUpdateClusterProgress without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedResponse = generateSampleMessage(new operationsProtos.google.longrunning.Operation());
+            expectedResponse.name = 'test';
+            expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
+            expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')}
+
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const decodedOperation = await client.checkPartialUpdateClusterProgress(expectedResponse.name);
+            assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
+            assert(decodedOperation.metadata);
+            assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        });
+
+        it('invokes checkPartialUpdateClusterProgress with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedError = new Error('expected');
+
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.checkPartialUpdateClusterProgress(''), expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
+    });
+
+    describe('updateAppProfile', () => {
+        it('invokes updateAppProfile without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.UpdateAppProfileRequest());
+            request.appProfile = {};
+            request.appProfile.name = '';
+            const expectedHeaderRequestParams = "app_profile.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.updateAppProfile = stubLongRunningCall(expectedResponse);
+            const [operation] = await client.updateAppProfile(request);
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.updateAppProfile as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes updateAppProfile without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.UpdateAppProfileRequest());
+            request.appProfile = {};
+            request.appProfile.name = '';
+            const expectedHeaderRequestParams = "app_profile.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.updateAppProfile = stubLongRunningCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.updateAppProfile(
+                    request,
+                    (err?: Error|null,
+                     result?: LROperation<protos.google.bigtable.admin.v2.IAppProfile, protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata>|null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const operation = await promise as LROperation<protos.google.bigtable.admin.v2.IAppProfile, protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata>;
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.updateAppProfile as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes updateAppProfile with call error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.UpdateAppProfileRequest());
+            request.appProfile = {};
+            request.appProfile.name = '';
+            const expectedHeaderRequestParams = "app_profile.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.updateAppProfile = stubLongRunningCall(undefined, expectedError);
+            await assert.rejects(client.updateAppProfile(request), expectedError);
+            assert((client.innerApiCalls.updateAppProfile as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes updateAppProfile with LRO error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.UpdateAppProfileRequest());
+            request.appProfile = {};
+            request.appProfile.name = '';
+            const expectedHeaderRequestParams = "app_profile.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.updateAppProfile = stubLongRunningCall(undefined, undefined, expectedError);
+            const [operation] = await client.updateAppProfile(request);
+            await assert.rejects(operation.promise(), expectedError);
+            assert((client.innerApiCalls.updateAppProfile as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes checkUpdateAppProfileProgress without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedResponse = generateSampleMessage(new operationsProtos.google.longrunning.Operation());
+            expectedResponse.name = 'test';
+            expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
+            expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')}
+
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const decodedOperation = await client.checkUpdateAppProfileProgress(expectedResponse.name);
+            assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
+            assert(decodedOperation.metadata);
+            assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        });
+
+        it('invokes checkUpdateAppProfileProgress with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedError = new Error('expected');
+
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.checkUpdateAppProfileProgress(''), expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
+    });
+
+    describe('listAppProfiles', () => {
+        it('invokes listAppProfiles without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListAppProfilesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
+            ];
+            client.innerApiCalls.listAppProfiles = stubSimpleCall(expectedResponse);
+            const [response] = await client.listAppProfiles(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listAppProfiles as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes listAppProfiles without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListAppProfilesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
+            ];
+            client.innerApiCalls.listAppProfiles = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.listAppProfiles(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.IAppProfile[]|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listAppProfiles as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes listAppProfiles with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListAppProfilesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.listAppProfiles = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.listAppProfiles(request), expectedError);
+            assert((client.innerApiCalls.listAppProfiles as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes listAppProfilesStream without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListAppProfilesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
+            ];
+            client.descriptors.page.listAppProfiles.createStream = stubPageStreamingCall(expectedResponse);
+            const stream = client.listAppProfilesStream(request);
+            const promise = new Promise((resolve, reject) => {
+                const responses: protos.google.bigtable.admin.v2.AppProfile[] = [];
+                stream.on('data', (response: protos.google.bigtable.admin.v2.AppProfile) => {
+                    responses.push(response);
+                });
+                stream.on('end', () => {
+                    resolve(responses);
+                });
+                stream.on('error', (err: Error) => {
+                    reject(err);
+                });
+            });
+            const responses = await promise;
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert((client.descriptors.page.listAppProfiles.createStream as SinonStub)
+                .getCall(0).calledWith(client.innerApiCalls.listAppProfiles, request));
+            assert.strictEqual(
+                (client.descriptors.page.listAppProfiles.createStream as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+
+        it('invokes listAppProfilesStream with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListAppProfilesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedError = new Error('expected');
+            client.descriptors.page.listAppProfiles.createStream = stubPageStreamingCall(undefined, expectedError);
+            const stream = client.listAppProfilesStream(request);
+            const promise = new Promise((resolve, reject) => {
+                const responses: protos.google.bigtable.admin.v2.AppProfile[] = [];
+                stream.on('data', (response: protos.google.bigtable.admin.v2.AppProfile) => {
+                    responses.push(response);
+                });
+                stream.on('end', () => {
+                    resolve(responses);
+                });
+                stream.on('error', (err: Error) => {
+                    reject(err);
+                });
+            });
+            await assert.rejects(promise, expectedError);
+            assert((client.descriptors.page.listAppProfiles.createStream as SinonStub)
+                .getCall(0).calledWith(client.innerApiCalls.listAppProfiles, request));
+            assert.strictEqual(
+                (client.descriptors.page.listAppProfiles.createStream as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+
+        it('uses async iteration with listAppProfiles without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListAppProfilesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
+            ];
+            client.descriptors.page.listAppProfiles.asyncIterate = stubAsyncIterationCall(expectedResponse);
+            const responses: protos.google.bigtable.admin.v2.IAppProfile[] = [];
+            const iterable = client.listAppProfilesAsync(request);
+            for await (const resource of iterable) {
+                responses.push(resource!);
             }
-          }
-        );
-      });
-      const operation = (await promise) as LROperation<
-        protos.google.bigtable.admin.v2.IInstance,
-        protos.google.bigtable.admin.v2.IUpdateInstanceMetadata
-      >;
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.partialUpdateInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes partialUpdateInstance with call error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.PartialUpdateInstanceRequest()
-      );
-      request.instance = {};
-      request.instance.name = '';
-      const expectedHeaderRequestParams = 'instance.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.partialUpdateInstance = stubLongRunningCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(
-        client.partialUpdateInstance(request),
-        expectedError
-      );
-      assert(
-        (client.innerApiCalls.partialUpdateInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes partialUpdateInstance with LRO error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.PartialUpdateInstanceRequest()
-      );
-      request.instance = {};
-      request.instance.name = '';
-      const expectedHeaderRequestParams = 'instance.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.partialUpdateInstance = stubLongRunningCall(
-        undefined,
-        undefined,
-        expectedError
-      );
-      const [operation] = await client.partialUpdateInstance(request);
-      await assert.rejects(operation.promise(), expectedError);
-      assert(
-        (client.innerApiCalls.partialUpdateInstance as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes checkPartialUpdateInstanceProgress without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const expectedResponse = generateSampleMessage(
-        new operationsProtos.google.longrunning.Operation()
-      );
-      expectedResponse.name = 'test';
-      expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
-      expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')};
-
-      client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
-      const decodedOperation = await client.checkPartialUpdateInstanceProgress(
-        expectedResponse.name
-      );
-      assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
-      assert(decodedOperation.metadata);
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-
-    it('invokes checkPartialUpdateInstanceProgress with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const expectedError = new Error('expected');
-
-      client.operationsClient.getOperation = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(
-        client.checkPartialUpdateInstanceProgress(''),
-        expectedError
-      );
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-  });
-
-  describe('createCluster', () => {
-    it('invokes createCluster without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateClusterRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.createCluster =
-        stubLongRunningCall(expectedResponse);
-      const [operation] = await client.createCluster(request);
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.createCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes createCluster without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateClusterRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.createCluster =
-        stubLongRunningCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.createCluster(
-          request,
-          (
-            err?: Error | null,
-            result?: LROperation<
-              protos.google.bigtable.admin.v2.ICluster,
-              protos.google.bigtable.admin.v2.ICreateClusterMetadata
-            > | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert.deepStrictEqual(
+                (client.descriptors.page.listAppProfiles.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.descriptors.page.listAppProfiles.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+
+        it('uses async iteration with listAppProfiles with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListAppProfilesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";const expectedError = new Error('expected');
+            client.descriptors.page.listAppProfiles.asyncIterate = stubAsyncIterationCall(undefined, expectedError);
+            const iterable = client.listAppProfilesAsync(request);
+            await assert.rejects(async () => {
+                const responses: protos.google.bigtable.admin.v2.IAppProfile[] = [];
+                for await (const resource of iterable) {
+                    responses.push(resource!);
+                }
+            });
+            assert.deepStrictEqual(
+                (client.descriptors.page.listAppProfiles.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.descriptors.page.listAppProfiles.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+    });
+
+    describe('listHotTablets', () => {
+        it('invokes listHotTablets without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListHotTabletsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
+            ];
+            client.innerApiCalls.listHotTablets = stubSimpleCall(expectedResponse);
+            const [response] = await client.listHotTablets(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listHotTablets as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes listHotTablets without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListHotTabletsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
+            ];
+            client.innerApiCalls.listHotTablets = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.listHotTablets(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.IHotTablet[]|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listHotTablets as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes listHotTablets with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListHotTabletsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.listHotTablets = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.listHotTablets(request), expectedError);
+            assert((client.innerApiCalls.listHotTablets as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes listHotTabletsStream without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListHotTabletsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
+            ];
+            client.descriptors.page.listHotTablets.createStream = stubPageStreamingCall(expectedResponse);
+            const stream = client.listHotTabletsStream(request);
+            const promise = new Promise((resolve, reject) => {
+                const responses: protos.google.bigtable.admin.v2.HotTablet[] = [];
+                stream.on('data', (response: protos.google.bigtable.admin.v2.HotTablet) => {
+                    responses.push(response);
+                });
+                stream.on('end', () => {
+                    resolve(responses);
+                });
+                stream.on('error', (err: Error) => {
+                    reject(err);
+                });
+            });
+            const responses = await promise;
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert((client.descriptors.page.listHotTablets.createStream as SinonStub)
+                .getCall(0).calledWith(client.innerApiCalls.listHotTablets, request));
+            assert.strictEqual(
+                (client.descriptors.page.listHotTablets.createStream as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+
+        it('invokes listHotTabletsStream with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListHotTabletsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedError = new Error('expected');
+            client.descriptors.page.listHotTablets.createStream = stubPageStreamingCall(undefined, expectedError);
+            const stream = client.listHotTabletsStream(request);
+            const promise = new Promise((resolve, reject) => {
+                const responses: protos.google.bigtable.admin.v2.HotTablet[] = [];
+                stream.on('data', (response: protos.google.bigtable.admin.v2.HotTablet) => {
+                    responses.push(response);
+                });
+                stream.on('end', () => {
+                    resolve(responses);
+                });
+                stream.on('error', (err: Error) => {
+                    reject(err);
+                });
+            });
+            await assert.rejects(promise, expectedError);
+            assert((client.descriptors.page.listHotTablets.createStream as SinonStub)
+                .getCall(0).calledWith(client.innerApiCalls.listHotTablets, request));
+            assert.strictEqual(
+                (client.descriptors.page.listHotTablets.createStream as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+
+        it('uses async iteration with listHotTablets without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListHotTabletsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
+            ];
+            client.descriptors.page.listHotTablets.asyncIterate = stubAsyncIterationCall(expectedResponse);
+            const responses: protos.google.bigtable.admin.v2.IHotTablet[] = [];
+            const iterable = client.listHotTabletsAsync(request);
+            for await (const resource of iterable) {
+                responses.push(resource!);
             }
-          }
-        );
-      });
-      const operation = (await promise) as LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.ICreateClusterMetadata
-      >;
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.createCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes createCluster with call error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateClusterRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.createCluster = stubLongRunningCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.createCluster(request), expectedError);
-      assert(
-        (client.innerApiCalls.createCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes createCluster with LRO error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateClusterRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.createCluster = stubLongRunningCall(
-        undefined,
-        undefined,
-        expectedError
-      );
-      const [operation] = await client.createCluster(request);
-      await assert.rejects(operation.promise(), expectedError);
-      assert(
-        (client.innerApiCalls.createCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes checkCreateClusterProgress without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const expectedResponse = generateSampleMessage(
-        new operationsProtos.google.longrunning.Operation()
-      );
-      expectedResponse.name = 'test';
-      expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
-      expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')};
-
-      client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
-      const decodedOperation = await client.checkCreateClusterProgress(
-        expectedResponse.name
-      );
-      assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
-      assert(decodedOperation.metadata);
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-
-    it('invokes checkCreateClusterProgress with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const expectedError = new Error('expected');
-
-      client.operationsClient.getOperation = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(
-        client.checkCreateClusterProgress(''),
-        expectedError
-      );
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-  });
-
-  describe('updateCluster', () => {
-    it('invokes updateCluster without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Cluster()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.updateCluster =
-        stubLongRunningCall(expectedResponse);
-      const [operation] = await client.updateCluster(request);
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.updateCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes updateCluster without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Cluster()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.updateCluster =
-        stubLongRunningCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.updateCluster(
-          request,
-          (
-            err?: Error | null,
-            result?: LROperation<
-              protos.google.bigtable.admin.v2.ICluster,
-              protos.google.bigtable.admin.v2.IUpdateClusterMetadata
-            > | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert.deepStrictEqual(
+                (client.descriptors.page.listHotTablets.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.descriptors.page.listHotTablets.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+
+        it('uses async iteration with listHotTablets with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListHotTabletsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";const expectedError = new Error('expected');
+            client.descriptors.page.listHotTablets.asyncIterate = stubAsyncIterationCall(undefined, expectedError);
+            const iterable = client.listHotTabletsAsync(request);
+            await assert.rejects(async () => {
+                const responses: protos.google.bigtable.admin.v2.IHotTablet[] = [];
+                for await (const resource of iterable) {
+                    responses.push(resource!);
+                }
+            });
+            assert.deepStrictEqual(
+                (client.descriptors.page.listHotTablets.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.descriptors.page.listHotTablets.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+    });
+    describe('getLocation', () => {
+        it('invokes getLocation without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new LocationProtos.google.cloud.location.GetLocationRequest()
+            );
+            request.name = '';
+            const expectedHeaderRequestParams = 'name=';
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(
+                new LocationProtos.google.cloud.location.Location()
+            );
+            client.locationsClient.getLocation = stubSimpleCall(expectedResponse);
+            const response = await client.getLocation(request, expectedOptions);
+            assert.deepStrictEqual(response, [expectedResponse]);
+            assert((client.locationsClient.getLocation as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+        it('invokes getLocation without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new LocationProtos.google.cloud.location.GetLocationRequest()
+            );
+            request.name = '';
+            const expectedHeaderRequestParams = 'name=';
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(
+                new LocationProtos.google.cloud.location.Location()
+            );
+            client.locationsClient.getLocation = sinon.stub().callsArgWith(2, null, expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.getLocation(
+                    request,
+                    expectedOptions,
+                    (
+                        err?: Error | null,
+                        result?: LocationProtos.google.cloud.location.ILocation | null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.locationsClient.getLocation as SinonStub)
+                .getCall(0));
+        });
+        it('invokes getLocation with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new LocationProtos.google.cloud.location.GetLocationRequest()
+            );
+            request.name = '';
+            const expectedHeaderRequestParams = 'name=';
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.locationsClient.getLocation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.getLocation(request, expectedOptions), expectedError);
+            assert((client.locationsClient.getLocation as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+    });
+    describe('listLocationsAsync', () => {
+        it('uses async iteration with listLocations without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new LocationProtos.google.cloud.location.ListLocationsRequest()
+            );
+            request.name = '';
+            const expectedHeaderRequestParams = 'name=';
+            const expectedResponse = [
+                generateSampleMessage(
+                    new LocationProtos.google.cloud.location.Location()
+                ),
+                generateSampleMessage(
+                    new LocationProtos.google.cloud.location.Location()
+                ),
+                generateSampleMessage(
+                    new LocationProtos.google.cloud.location.Location()
+                ),
+            ];
+            client.locationsClient.descriptors.page.listLocations.asyncIterate = stubAsyncIterationCall(expectedResponse);
+            const responses: LocationProtos.google.cloud.location.ILocation[] = [];
+            const iterable = client.listLocationsAsync(request);
+            for await (const resource of iterable) {
+                responses.push(resource!);
             }
-          }
-        );
-      });
-      const operation = (await promise) as LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.IUpdateClusterMetadata
-      >;
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.updateCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes updateCluster with call error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Cluster()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.updateCluster = stubLongRunningCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.updateCluster(request), expectedError);
-      assert(
-        (client.innerApiCalls.updateCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes updateCluster with LRO error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Cluster()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.updateCluster = stubLongRunningCall(
-        undefined,
-        undefined,
-        expectedError
-      );
-      const [operation] = await client.updateCluster(request);
-      await assert.rejects(operation.promise(), expectedError);
-      assert(
-        (client.innerApiCalls.updateCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes checkUpdateClusterProgress without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const expectedResponse = generateSampleMessage(
-        new operationsProtos.google.longrunning.Operation()
-      );
-      expectedResponse.name = 'test';
-      expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
-      expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')};
-
-      client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
-      const decodedOperation = await client.checkUpdateClusterProgress(
-        expectedResponse.name
-      );
-      assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
-      assert(decodedOperation.metadata);
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-
-    it('invokes checkUpdateClusterProgress with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const expectedError = new Error('expected');
-
-      client.operationsClient.getOperation = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(
-        client.checkUpdateClusterProgress(''),
-        expectedError
-      );
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-  });
-
-  describe('partialUpdateCluster', () => {
-    it('invokes partialUpdateCluster without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.PartialUpdateClusterRequest()
-      );
-      request.cluster = {};
-      request.cluster.name = '';
-      const expectedHeaderRequestParams = 'cluster.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.partialUpdateCluster =
-        stubLongRunningCall(expectedResponse);
-      const [operation] = await client.partialUpdateCluster(request);
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.partialUpdateCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes partialUpdateCluster without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.PartialUpdateClusterRequest()
-      );
-      request.cluster = {};
-      request.cluster.name = '';
-      const expectedHeaderRequestParams = 'cluster.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.partialUpdateCluster =
-        stubLongRunningCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.partialUpdateCluster(
-          request,
-          (
-            err?: Error | null,
-            result?: LROperation<
-              protos.google.bigtable.admin.v2.ICluster,
-              protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata
-            > | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const operation = (await promise) as LROperation<
-        protos.google.bigtable.admin.v2.ICluster,
-        protos.google.bigtable.admin.v2.IPartialUpdateClusterMetadata
-      >;
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.partialUpdateCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes partialUpdateCluster with call error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.PartialUpdateClusterRequest()
-      );
-      request.cluster = {};
-      request.cluster.name = '';
-      const expectedHeaderRequestParams = 'cluster.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.partialUpdateCluster = stubLongRunningCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.partialUpdateCluster(request), expectedError);
-      assert(
-        (client.innerApiCalls.partialUpdateCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes partialUpdateCluster with LRO error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.PartialUpdateClusterRequest()
-      );
-      request.cluster = {};
-      request.cluster.name = '';
-      const expectedHeaderRequestParams = 'cluster.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.partialUpdateCluster = stubLongRunningCall(
-        undefined,
-        undefined,
-        expectedError
-      );
-      const [operation] = await client.partialUpdateCluster(request);
-      await assert.rejects(operation.promise(), expectedError);
-      assert(
-        (client.innerApiCalls.partialUpdateCluster as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes checkPartialUpdateClusterProgress without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const expectedResponse = generateSampleMessage(
-        new operationsProtos.google.longrunning.Operation()
-      );
-      expectedResponse.name = 'test';
-      expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
-      expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')};
-
-      client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
-      const decodedOperation = await client.checkPartialUpdateClusterProgress(
-        expectedResponse.name
-      );
-      assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
-      assert(decodedOperation.metadata);
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-
-    it('invokes checkPartialUpdateClusterProgress with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const expectedError = new Error('expected');
-
-      client.operationsClient.getOperation = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(
-        client.checkPartialUpdateClusterProgress(''),
-        expectedError
-      );
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-  });
-
-  describe('updateAppProfile', () => {
-    it('invokes updateAppProfile without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.UpdateAppProfileRequest()
-      );
-      request.appProfile = {};
-      request.appProfile.name = '';
-      const expectedHeaderRequestParams = 'app_profile.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.updateAppProfile =
-        stubLongRunningCall(expectedResponse);
-      const [operation] = await client.updateAppProfile(request);
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.updateAppProfile as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes updateAppProfile without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.UpdateAppProfileRequest()
-      );
-      request.appProfile = {};
-      request.appProfile.name = '';
-      const expectedHeaderRequestParams = 'app_profile.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.updateAppProfile =
-        stubLongRunningCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.updateAppProfile(
-          request,
-          (
-            err?: Error | null,
-            result?: LROperation<
-              protos.google.bigtable.admin.v2.IAppProfile,
-              protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata
-            > | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert.deepStrictEqual(
+                (client.locationsClient.descriptors.page.listLocations.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.locationsClient.descriptors.page.listLocations.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+        it('uses async iteration with listLocations with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(
+                new LocationProtos.google.cloud.location.ListLocationsRequest()
+            );
+            request.name = '';
+            const expectedHeaderRequestParams = 'name=';
+            const expectedError = new Error('expected');
+            client.locationsClient.descriptors.page.listLocations.asyncIterate = stubAsyncIterationCall(undefined, expectedError);
+            const iterable = client.listLocationsAsync(request);
+            await assert.rejects(async () => {
+                const responses: LocationProtos.google.cloud.location.ILocation[] = [];
+                for await (const resource of iterable) {
+                    responses.push(resource!);
+                }
+            });
+            assert.deepStrictEqual(
+                (client.locationsClient.descriptors.page.listLocations.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.locationsClient.descriptors.page.listLocations.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+    });
+    describe('getOperation', () => {
+        it('invokes getOperation without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.GetOperationRequest()
+            );
+            const expectedResponse = generateSampleMessage(
+                new operationsProtos.google.longrunning.Operation()
+            );
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const response = await client.getOperation(request);
+            assert.deepStrictEqual(response, [expectedResponse]);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0).calledWith(request)
+            );
+        });
+        it('invokes getOperation without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.GetOperationRequest()
+            );
+            const expectedResponse = generateSampleMessage(
+                new operationsProtos.google.longrunning.Operation()
+            );
+            client.operationsClient.getOperation = sinon.stub().callsArgWith(2, null, expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.operationsClient.getOperation(
+                    request,
+                    undefined,
+                    (
+                        err?: Error | null,
+                        result?: operationsProtos.google.longrunning.Operation | null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
+        it('invokes getOperation with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.GetOperationRequest()
+            );
+            const expectedError = new Error('expected');
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(async () => {await client.getOperation(request)}, expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0).calledWith(request));
+        });
+    });
+    describe('cancelOperation', () => {
+        it('invokes cancelOperation without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.CancelOperationRequest()
+            );
+            const expectedResponse = generateSampleMessage(
+                new protos.google.protobuf.Empty()
+            );
+            client.operationsClient.cancelOperation = stubSimpleCall(expectedResponse);
+            const response = await client.cancelOperation(request);
+            assert.deepStrictEqual(response, [expectedResponse]);
+            assert((client.operationsClient.cancelOperation as SinonStub)
+                .getCall(0).calledWith(request)
+            );
+        });
+        it('invokes cancelOperation without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.CancelOperationRequest()
+            );
+            const expectedResponse = generateSampleMessage(
+                new protos.google.protobuf.Empty()
+            );
+            client.operationsClient.cancelOperation = sinon.stub().callsArgWith(2, null, expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.operationsClient.cancelOperation(
+                    request,
+                    undefined,
+                    (
+                        err?: Error | null,
+                        result?: protos.google.protobuf.Empty | null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.operationsClient.cancelOperation as SinonStub)
+                .getCall(0));
+        });
+        it('invokes cancelOperation with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.CancelOperationRequest()
+            );
+            const expectedError = new Error('expected');
+            client.operationsClient.cancelOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(async () => {await client.cancelOperation(request)}, expectedError);
+            assert((client.operationsClient.cancelOperation as SinonStub)
+                .getCall(0).calledWith(request));
+        });
+    });
+    describe('deleteOperation', () => {
+        it('invokes deleteOperation without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.DeleteOperationRequest()
+            );
+            const expectedResponse = generateSampleMessage(
+                new protos.google.protobuf.Empty()
+            );
+            client.operationsClient.deleteOperation = stubSimpleCall(expectedResponse);
+            const response = await client.deleteOperation(request);
+            assert.deepStrictEqual(response, [expectedResponse]);
+            assert((client.operationsClient.deleteOperation as SinonStub)
+                .getCall(0).calledWith(request)
+            );
+        });
+        it('invokes deleteOperation without error using callback', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.DeleteOperationRequest()
+            );
+            const expectedResponse = generateSampleMessage(
+                new protos.google.protobuf.Empty()
+            );
+            client.operationsClient.deleteOperation = sinon.stub().callsArgWith(2, null, expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.operationsClient.deleteOperation(
+                    request,
+                    undefined,
+                    (
+                        err?: Error | null,
+                        result?: protos.google.protobuf.Empty | null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.operationsClient.deleteOperation as SinonStub)
+                .getCall(0));
+        });
+        it('invokes deleteOperation with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.DeleteOperationRequest()
+            );
+            const expectedError = new Error('expected');
+            client.operationsClient.deleteOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(async () => {await client.deleteOperation(request)}, expectedError);
+            assert((client.operationsClient.deleteOperation as SinonStub)
+                .getCall(0).calledWith(request));
+        });
+    });
+    describe('listOperationsAsync', () => {
+        it('uses async iteration with listOperations without error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.ListOperationsRequest()
+            );
+            const expectedResponse = [
+                generateSampleMessage(
+                    new operationsProtos.google.longrunning.ListOperationsResponse()
+                ),
+                generateSampleMessage(
+                    new operationsProtos.google.longrunning.ListOperationsResponse()
+                ),
+                generateSampleMessage(
+                    new operationsProtos.google.longrunning.ListOperationsResponse()
+                ),
+            ];
+            client.operationsClient.descriptor.listOperations.asyncIterate = stubAsyncIterationCall(expectedResponse);
+            const responses: operationsProtos.google.longrunning.ListOperationsResponse[] = [];
+            const iterable = client.operationsClient.listOperationsAsync(request);
+            for await (const resource of iterable) {
+                responses.push(resource!);
             }
-          }
-        );
-      });
-      const operation = (await promise) as LROperation<
-        protos.google.bigtable.admin.v2.IAppProfile,
-        protos.google.bigtable.admin.v2.IUpdateAppProfileMetadata
-      >;
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.updateAppProfile as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes updateAppProfile with call error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.UpdateAppProfileRequest()
-      );
-      request.appProfile = {};
-      request.appProfile.name = '';
-      const expectedHeaderRequestParams = 'app_profile.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.updateAppProfile = stubLongRunningCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.updateAppProfile(request), expectedError);
-      assert(
-        (client.innerApiCalls.updateAppProfile as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes updateAppProfile with LRO error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.UpdateAppProfileRequest()
-      );
-      request.appProfile = {};
-      request.appProfile.name = '';
-      const expectedHeaderRequestParams = 'app_profile.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.updateAppProfile = stubLongRunningCall(
-        undefined,
-        undefined,
-        expectedError
-      );
-      const [operation] = await client.updateAppProfile(request);
-      await assert.rejects(operation.promise(), expectedError);
-      assert(
-        (client.innerApiCalls.updateAppProfile as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes checkUpdateAppProfileProgress without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const expectedResponse = generateSampleMessage(
-        new operationsProtos.google.longrunning.Operation()
-      );
-      expectedResponse.name = 'test';
-      expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
-      expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')};
-
-      client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
-      const decodedOperation = await client.checkUpdateAppProfileProgress(
-        expectedResponse.name
-      );
-      assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
-      assert(decodedOperation.metadata);
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-
-    it('invokes checkUpdateAppProfileProgress with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const expectedError = new Error('expected');
-
-      client.operationsClient.getOperation = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(
-        client.checkUpdateAppProfileProgress(''),
-        expectedError
-      );
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-  });
-
-  describe('listAppProfiles', () => {
-    it('invokes listAppProfiles without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListAppProfilesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
-      ];
-      client.innerApiCalls.listAppProfiles = stubSimpleCall(expectedResponse);
-      const [response] = await client.listAppProfiles(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listAppProfiles as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes listAppProfiles without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListAppProfilesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
-      ];
-      client.innerApiCalls.listAppProfiles =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.listAppProfiles(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.IAppProfile[] | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listAppProfiles as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes listAppProfiles with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListAppProfilesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.listAppProfiles = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.listAppProfiles(request), expectedError);
-      assert(
-        (client.innerApiCalls.listAppProfiles as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes listAppProfilesStream without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListAppProfilesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
-      ];
-      client.descriptors.page.listAppProfiles.createStream =
-        stubPageStreamingCall(expectedResponse);
-      const stream = client.listAppProfilesStream(request);
-      const promise = new Promise((resolve, reject) => {
-        const responses: protos.google.bigtable.admin.v2.AppProfile[] = [];
-        stream.on(
-          'data',
-          (response: protos.google.bigtable.admin.v2.AppProfile) => {
-            responses.push(response);
-          }
-        );
-        stream.on('end', () => {
-          resolve(responses);
-        });
-        stream.on('error', (err: Error) => {
-          reject(err);
-        });
-      });
-      const responses = await promise;
-      assert.deepStrictEqual(responses, expectedResponse);
-      assert(
-        (client.descriptors.page.listAppProfiles.createStream as SinonStub)
-          .getCall(0)
-          .calledWith(client.innerApiCalls.listAppProfiles, request)
-      );
-      assert.strictEqual(
-        (
-          client.descriptors.page.listAppProfiles.createStream as SinonStub
-        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
-
-    it('invokes listAppProfilesStream with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListAppProfilesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedError = new Error('expected');
-      client.descriptors.page.listAppProfiles.createStream =
-        stubPageStreamingCall(undefined, expectedError);
-      const stream = client.listAppProfilesStream(request);
-      const promise = new Promise((resolve, reject) => {
-        const responses: protos.google.bigtable.admin.v2.AppProfile[] = [];
-        stream.on(
-          'data',
-          (response: protos.google.bigtable.admin.v2.AppProfile) => {
-            responses.push(response);
-          }
-        );
-        stream.on('end', () => {
-          resolve(responses);
-        });
-        stream.on('error', (err: Error) => {
-          reject(err);
-        });
-      });
-      await assert.rejects(promise, expectedError);
-      assert(
-        (client.descriptors.page.listAppProfiles.createStream as SinonStub)
-          .getCall(0)
-          .calledWith(client.innerApiCalls.listAppProfiles, request)
-      );
-      assert.strictEqual(
-        (
-          client.descriptors.page.listAppProfiles.createStream as SinonStub
-        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
-
-    it('uses async iteration with listAppProfiles without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListAppProfilesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.AppProfile()),
-      ];
-      client.descriptors.page.listAppProfiles.asyncIterate =
-        stubAsyncIterationCall(expectedResponse);
-      const responses: protos.google.bigtable.admin.v2.IAppProfile[] = [];
-      const iterable = client.listAppProfilesAsync(request);
-      for await (const resource of iterable) {
-        responses.push(resource!);
-      }
-      assert.deepStrictEqual(responses, expectedResponse);
-      assert.deepStrictEqual(
-        (
-          client.descriptors.page.listAppProfiles.asyncIterate as SinonStub
-        ).getCall(0).args[1],
-        request
-      );
-      assert.strictEqual(
-        (
-          client.descriptors.page.listAppProfiles.asyncIterate as SinonStub
-        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
-
-    it('uses async iteration with listAppProfiles with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListAppProfilesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedError = new Error('expected');
-      client.descriptors.page.listAppProfiles.asyncIterate =
-        stubAsyncIterationCall(undefined, expectedError);
-      const iterable = client.listAppProfilesAsync(request);
-      await assert.rejects(async () => {
-        const responses: protos.google.bigtable.admin.v2.IAppProfile[] = [];
-        for await (const resource of iterable) {
-          responses.push(resource!);
-        }
-      });
-      assert.deepStrictEqual(
-        (
-          client.descriptors.page.listAppProfiles.asyncIterate as SinonStub
-        ).getCall(0).args[1],
-        request
-      );
-      assert.strictEqual(
-        (
-          client.descriptors.page.listAppProfiles.asyncIterate as SinonStub
-        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
-  });
-
-  describe('listHotTablets', () => {
-    it('invokes listHotTablets without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListHotTabletsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
-      ];
-      client.innerApiCalls.listHotTablets = stubSimpleCall(expectedResponse);
-      const [response] = await client.listHotTablets(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listHotTablets as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes listHotTablets without error using callback', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListHotTabletsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
-      ];
-      client.innerApiCalls.listHotTablets =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.listHotTablets(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.IHotTablet[] | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listHotTablets as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
-
-    it('invokes listHotTablets with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListHotTabletsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.listHotTablets = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.listHotTablets(request), expectedError);
-      assert(
-        (client.innerApiCalls.listHotTablets as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
-
-    it('invokes listHotTabletsStream without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListHotTabletsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
-      ];
-      client.descriptors.page.listHotTablets.createStream =
-        stubPageStreamingCall(expectedResponse);
-      const stream = client.listHotTabletsStream(request);
-      const promise = new Promise((resolve, reject) => {
-        const responses: protos.google.bigtable.admin.v2.HotTablet[] = [];
-        stream.on(
-          'data',
-          (response: protos.google.bigtable.admin.v2.HotTablet) => {
-            responses.push(response);
-          }
-        );
-        stream.on('end', () => {
-          resolve(responses);
-        });
-        stream.on('error', (err: Error) => {
-          reject(err);
-        });
-      });
-      const responses = await promise;
-      assert.deepStrictEqual(responses, expectedResponse);
-      assert(
-        (client.descriptors.page.listHotTablets.createStream as SinonStub)
-          .getCall(0)
-          .calledWith(client.innerApiCalls.listHotTablets, request)
-      );
-      assert.strictEqual(
-        (
-          client.descriptors.page.listHotTablets.createStream as SinonStub
-        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
-
-    it('invokes listHotTabletsStream with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListHotTabletsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedError = new Error('expected');
-      client.descriptors.page.listHotTablets.createStream =
-        stubPageStreamingCall(undefined, expectedError);
-      const stream = client.listHotTabletsStream(request);
-      const promise = new Promise((resolve, reject) => {
-        const responses: protos.google.bigtable.admin.v2.HotTablet[] = [];
-        stream.on(
-          'data',
-          (response: protos.google.bigtable.admin.v2.HotTablet) => {
-            responses.push(response);
-          }
-        );
-        stream.on('end', () => {
-          resolve(responses);
-        });
-        stream.on('error', (err: Error) => {
-          reject(err);
-        });
-      });
-      await assert.rejects(promise, expectedError);
-      assert(
-        (client.descriptors.page.listHotTablets.createStream as SinonStub)
-          .getCall(0)
-          .calledWith(client.innerApiCalls.listHotTablets, request)
-      );
-      assert.strictEqual(
-        (
-          client.descriptors.page.listHotTablets.createStream as SinonStub
-        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
-
-    it('uses async iteration with listHotTablets without error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListHotTabletsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.HotTablet()),
-      ];
-      client.descriptors.page.listHotTablets.asyncIterate =
-        stubAsyncIterationCall(expectedResponse);
-      const responses: protos.google.bigtable.admin.v2.IHotTablet[] = [];
-      const iterable = client.listHotTabletsAsync(request);
-      for await (const resource of iterable) {
-        responses.push(resource!);
-      }
-      assert.deepStrictEqual(responses, expectedResponse);
-      assert.deepStrictEqual(
-        (
-          client.descriptors.page.listHotTablets.asyncIterate as SinonStub
-        ).getCall(0).args[1],
-        request
-      );
-      assert.strictEqual(
-        (
-          client.descriptors.page.listHotTablets.asyncIterate as SinonStub
-        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
-
-    it('uses async iteration with listHotTablets with error', async () => {
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListHotTabletsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedError = new Error('expected');
-      client.descriptors.page.listHotTablets.asyncIterate =
-        stubAsyncIterationCall(undefined, expectedError);
-      const iterable = client.listHotTabletsAsync(request);
-      await assert.rejects(async () => {
-        const responses: protos.google.bigtable.admin.v2.IHotTablet[] = [];
-        for await (const resource of iterable) {
-          responses.push(resource!);
-        }
-      });
-      assert.deepStrictEqual(
-        (
-          client.descriptors.page.listHotTablets.asyncIterate as SinonStub
-        ).getCall(0).args[1],
-        request
-      );
-      assert.strictEqual(
-        (
-          client.descriptors.page.listHotTablets.asyncIterate as SinonStub
-        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
-  });
-
-  describe('Path templates', () => {
-    describe('appProfile', () => {
-      const fakePath = '/rendered/path/appProfile';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-        app_profile: 'appProfileValue',
-      };
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      client.pathTemplates.appProfilePathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.appProfilePathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('appProfilePath', () => {
-        const result = client.appProfilePath(
-          'projectValue',
-          'instanceValue',
-          'appProfileValue'
-        );
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.appProfilePathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromAppProfileName', () => {
-        const result = client.matchProjectFromAppProfileName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.appProfilePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromAppProfileName', () => {
-        const result = client.matchInstanceFromAppProfileName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.appProfilePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchAppProfileFromAppProfileName', () => {
-        const result = client.matchAppProfileFromAppProfileName(fakePath);
-        assert.strictEqual(result, 'appProfileValue');
-        assert(
-          (client.pathTemplates.appProfilePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-    });
-
-    describe('backup', () => {
-      const fakePath = '/rendered/path/backup';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-        cluster: 'clusterValue',
-        backup: 'backupValue',
-      };
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      client.pathTemplates.backupPathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.backupPathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('backupPath', () => {
-        const result = client.backupPath(
-          'projectValue',
-          'instanceValue',
-          'clusterValue',
-          'backupValue'
-        );
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.backupPathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromBackupName', () => {
-        const result = client.matchProjectFromBackupName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.backupPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromBackupName', () => {
-        const result = client.matchInstanceFromBackupName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.backupPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchClusterFromBackupName', () => {
-        const result = client.matchClusterFromBackupName(fakePath);
-        assert.strictEqual(result, 'clusterValue');
-        assert(
-          (client.pathTemplates.backupPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchBackupFromBackupName', () => {
-        const result = client.matchBackupFromBackupName(fakePath);
-        assert.strictEqual(result, 'backupValue');
-        assert(
-          (client.pathTemplates.backupPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-    });
-
-    describe('cluster', () => {
-      const fakePath = '/rendered/path/cluster';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-        cluster: 'clusterValue',
-      };
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      client.pathTemplates.clusterPathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.clusterPathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('clusterPath', () => {
-        const result = client.clusterPath(
-          'projectValue',
-          'instanceValue',
-          'clusterValue'
-        );
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.clusterPathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromClusterName', () => {
-        const result = client.matchProjectFromClusterName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.clusterPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromClusterName', () => {
-        const result = client.matchInstanceFromClusterName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.clusterPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchClusterFromClusterName', () => {
-        const result = client.matchClusterFromClusterName(fakePath);
-        assert.strictEqual(result, 'clusterValue');
-        assert(
-          (client.pathTemplates.clusterPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-    });
-
-    describe('hotTablet', () => {
-      const fakePath = '/rendered/path/hotTablet';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-        cluster: 'clusterValue',
-        hot_tablet: 'hotTabletValue',
-      };
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      client.pathTemplates.hotTabletPathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.hotTabletPathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('hotTabletPath', () => {
-        const result = client.hotTabletPath(
-          'projectValue',
-          'instanceValue',
-          'clusterValue',
-          'hotTabletValue'
-        );
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.hotTabletPathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromHotTabletName', () => {
-        const result = client.matchProjectFromHotTabletName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromHotTabletName', () => {
-        const result = client.matchInstanceFromHotTabletName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchClusterFromHotTabletName', () => {
-        const result = client.matchClusterFromHotTabletName(fakePath);
-        assert.strictEqual(result, 'clusterValue');
-        assert(
-          (client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchHotTabletFromHotTabletName', () => {
-        const result = client.matchHotTabletFromHotTabletName(fakePath);
-        assert.strictEqual(result, 'hotTabletValue');
-        assert(
-          (client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-    });
-
-    describe('instance', () => {
-      const fakePath = '/rendered/path/instance';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-      };
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      client.pathTemplates.instancePathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.instancePathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('instancePath', () => {
-        const result = client.instancePath('projectValue', 'instanceValue');
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.instancePathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromInstanceName', () => {
-        const result = client.matchProjectFromInstanceName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.instancePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromInstanceName', () => {
-        const result = client.matchInstanceFromInstanceName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.instancePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-    });
-
-    describe('project', () => {
-      const fakePath = '/rendered/path/project';
-      const expectedParameters = {
-        project: 'projectValue',
-      };
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      client.pathTemplates.projectPathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.projectPathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('projectPath', () => {
-        const result = client.projectPath('projectValue');
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.projectPathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromProjectName', () => {
-        const result = client.matchProjectFromProjectName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.projectPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-    });
-
-    describe('snapshot', () => {
-      const fakePath = '/rendered/path/snapshot';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-        cluster: 'clusterValue',
-        snapshot: 'snapshotValue',
-      };
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      client.pathTemplates.snapshotPathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.snapshotPathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('snapshotPath', () => {
-        const result = client.snapshotPath(
-          'projectValue',
-          'instanceValue',
-          'clusterValue',
-          'snapshotValue'
-        );
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.snapshotPathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromSnapshotName', () => {
-        const result = client.matchProjectFromSnapshotName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.snapshotPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromSnapshotName', () => {
-        const result = client.matchInstanceFromSnapshotName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.snapshotPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchClusterFromSnapshotName', () => {
-        const result = client.matchClusterFromSnapshotName(fakePath);
-        assert.strictEqual(result, 'clusterValue');
-        assert(
-          (client.pathTemplates.snapshotPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchSnapshotFromSnapshotName', () => {
-        const result = client.matchSnapshotFromSnapshotName(fakePath);
-        assert.strictEqual(result, 'snapshotValue');
-        assert(
-          (client.pathTemplates.snapshotPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-    });
-
-    describe('table', () => {
-      const fakePath = '/rendered/path/table';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-        table: 'tableValue',
-      };
-      const client =
-        new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
-          credentials: {client_email: 'bogus', private_key: 'bogus'},
-          projectId: 'bogus',
-        });
-      client.initialize();
-      client.pathTemplates.tablePathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.tablePathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('tablePath', () => {
-        const result = client.tablePath(
-          'projectValue',
-          'instanceValue',
-          'tableValue'
-        );
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.tablePathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromTableName', () => {
-        const result = client.matchProjectFromTableName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.tablePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromTableName', () => {
-        const result = client.matchInstanceFromTableName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.tablePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchTableFromTableName', () => {
-        const result = client.matchTableFromTableName(fakePath);
-        assert.strictEqual(result, 'tableValue');
-        assert(
-          (client.pathTemplates.tablePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert.deepStrictEqual(
+                (client.operationsClient.descriptor.listOperations.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+        });
+        it('uses async iteration with listOperations with error', async () => {
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.ListOperationsRequest()
+            );
+            const expectedError = new Error('expected');
+            client.operationsClient.descriptor.listOperations.asyncIterate = stubAsyncIterationCall(undefined, expectedError);
+            const iterable = client.operationsClient.listOperationsAsync(request);
+            await assert.rejects(async () => {
+                const responses: operationsProtos.google.longrunning.ListOperationsResponse[] = [];
+                for await (const resource of iterable) {
+                    responses.push(resource!);
+                }
+            });
+            assert.deepStrictEqual(
+                (client.operationsClient.descriptor.listOperations.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+        });
+    });
+
+    describe('Path templates', () => {
+
+        describe('appProfile', () => {
+            const fakePath = "/rendered/path/appProfile";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+                app_profile: "appProfileValue",
+            };
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.appProfilePathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.appProfilePathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('appProfilePath', () => {
+                const result = client.appProfilePath("projectValue", "instanceValue", "appProfileValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.appProfilePathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromAppProfileName', () => {
+                const result = client.matchProjectFromAppProfileName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.appProfilePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromAppProfileName', () => {
+                const result = client.matchInstanceFromAppProfileName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.appProfilePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchAppProfileFromAppProfileName', () => {
+                const result = client.matchAppProfileFromAppProfileName(fakePath);
+                assert.strictEqual(result, "appProfileValue");
+                assert((client.pathTemplates.appProfilePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
+
+        describe('backup', () => {
+            const fakePath = "/rendered/path/backup";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+                cluster: "clusterValue",
+                backup: "backupValue",
+            };
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.backupPathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.backupPathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('backupPath', () => {
+                const result = client.backupPath("projectValue", "instanceValue", "clusterValue", "backupValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.backupPathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromBackupName', () => {
+                const result = client.matchProjectFromBackupName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.backupPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromBackupName', () => {
+                const result = client.matchInstanceFromBackupName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.backupPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchClusterFromBackupName', () => {
+                const result = client.matchClusterFromBackupName(fakePath);
+                assert.strictEqual(result, "clusterValue");
+                assert((client.pathTemplates.backupPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchBackupFromBackupName', () => {
+                const result = client.matchBackupFromBackupName(fakePath);
+                assert.strictEqual(result, "backupValue");
+                assert((client.pathTemplates.backupPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
+
+        describe('cluster', () => {
+            const fakePath = "/rendered/path/cluster";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+                cluster: "clusterValue",
+            };
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.clusterPathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.clusterPathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('clusterPath', () => {
+                const result = client.clusterPath("projectValue", "instanceValue", "clusterValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.clusterPathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromClusterName', () => {
+                const result = client.matchProjectFromClusterName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.clusterPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromClusterName', () => {
+                const result = client.matchInstanceFromClusterName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.clusterPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchClusterFromClusterName', () => {
+                const result = client.matchClusterFromClusterName(fakePath);
+                assert.strictEqual(result, "clusterValue");
+                assert((client.pathTemplates.clusterPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
+
+        describe('hotTablet', () => {
+            const fakePath = "/rendered/path/hotTablet";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+                cluster: "clusterValue",
+                hot_tablet: "hotTabletValue",
+            };
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.hotTabletPathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.hotTabletPathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('hotTabletPath', () => {
+                const result = client.hotTabletPath("projectValue", "instanceValue", "clusterValue", "hotTabletValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.hotTabletPathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromHotTabletName', () => {
+                const result = client.matchProjectFromHotTabletName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromHotTabletName', () => {
+                const result = client.matchInstanceFromHotTabletName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchClusterFromHotTabletName', () => {
+                const result = client.matchClusterFromHotTabletName(fakePath);
+                assert.strictEqual(result, "clusterValue");
+                assert((client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchHotTabletFromHotTabletName', () => {
+                const result = client.matchHotTabletFromHotTabletName(fakePath);
+                assert.strictEqual(result, "hotTabletValue");
+                assert((client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
+
+        describe('instance', () => {
+            const fakePath = "/rendered/path/instance";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+            };
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.instancePathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.instancePathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('instancePath', () => {
+                const result = client.instancePath("projectValue", "instanceValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.instancePathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromInstanceName', () => {
+                const result = client.matchProjectFromInstanceName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.instancePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromInstanceName', () => {
+                const result = client.matchInstanceFromInstanceName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.instancePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
+
+        describe('project', () => {
+            const fakePath = "/rendered/path/project";
+            const expectedParameters = {
+                project: "projectValue",
+            };
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.projectPathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.projectPathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('projectPath', () => {
+                const result = client.projectPath("projectValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.projectPathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromProjectName', () => {
+                const result = client.matchProjectFromProjectName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.projectPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
+
+        describe('snapshot', () => {
+            const fakePath = "/rendered/path/snapshot";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+                cluster: "clusterValue",
+                snapshot: "snapshotValue",
+            };
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.snapshotPathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.snapshotPathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('snapshotPath', () => {
+                const result = client.snapshotPath("projectValue", "instanceValue", "clusterValue", "snapshotValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.snapshotPathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromSnapshotName', () => {
+                const result = client.matchProjectFromSnapshotName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.snapshotPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromSnapshotName', () => {
+                const result = client.matchInstanceFromSnapshotName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.snapshotPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchClusterFromSnapshotName', () => {
+                const result = client.matchClusterFromSnapshotName(fakePath);
+                assert.strictEqual(result, "clusterValue");
+                assert((client.pathTemplates.snapshotPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchSnapshotFromSnapshotName', () => {
+                const result = client.matchSnapshotFromSnapshotName(fakePath);
+                assert.strictEqual(result, "snapshotValue");
+                assert((client.pathTemplates.snapshotPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
+
+        describe('table', () => {
+            const fakePath = "/rendered/path/table";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+                table: "tableValue",
+            };
+            const client = new bigtableinstanceadminModule.v2.BigtableInstanceAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.tablePathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.tablePathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('tablePath', () => {
+                const result = client.tablePath("projectValue", "instanceValue", "tableValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.tablePathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromTableName', () => {
+                const result = client.matchProjectFromTableName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.tablePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromTableName', () => {
+                const result = client.matchInstanceFromTableName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.tablePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchTableFromTableName', () => {
+                const result = client.matchTableFromTableName(fakePath);
+                assert.strictEqual(result, "tableValue");
+                assert((client.pathTemplates.tablePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
     });
-  });
 });
diff --git a/test/gapic_bigtable_table_admin_v2.ts b/test/gapic_bigtable_table_admin_v2.ts
index 370dedcda..9ea587fee 100644
--- a/test/gapic_bigtable_table_admin_v2.ts
+++ b/test/gapic_bigtable_table_admin_v2.ts
@@ -20,4210 +20,3931 @@ import * as protos from '../protos/protos';
 import * as assert from 'assert';
 import * as sinon from 'sinon';
 import {SinonStub} from 'sinon';
-import {describe, it} from 'mocha';
+import { describe, it } from 'mocha';
 import * as bigtabletableadminModule from '../src';
 
 import {PassThrough} from 'stream';
 
-import {protobuf, LROperation, operationsProtos} from 'google-gax';
+import {protobuf, LROperation, operationsProtos, LocationProtos} from 'google-gax';
 
 function generateSampleMessage<T extends object>(instance: T) {
-  const filledObject = (
-    instance.constructor as typeof protobuf.Message
-  ).toObject(instance as protobuf.Message<T>, {defaults: true});
-  return (instance.constructor as typeof protobuf.Message).fromObject(
-    filledObject
-  ) as T;
+    const filledObject = (instance.constructor as typeof protobuf.Message)
+        .toObject(instance as protobuf.Message<T>, {defaults: true});
+    return (instance.constructor as typeof protobuf.Message).fromObject(filledObject) as T;
 }
 
 function stubSimpleCall<ResponseType>(response?: ResponseType, error?: Error) {
-  return error
-    ? sinon.stub().rejects(error)
-    : sinon.stub().resolves([response]);
+    return error ? sinon.stub().rejects(error) : sinon.stub().resolves([response]);
 }
 
-function stubSimpleCallWithCallback<ResponseType>(
-  response?: ResponseType,
-  error?: Error
-) {
-  return error
-    ? sinon.stub().callsArgWith(2, error)
-    : sinon.stub().callsArgWith(2, null, response);
+function stubSimpleCallWithCallback<ResponseType>(response?: ResponseType, error?: Error) {
+    return error ? sinon.stub().callsArgWith(2, error) : sinon.stub().callsArgWith(2, null, response);
 }
 
-function stubLongRunningCall<ResponseType>(
-  response?: ResponseType,
-  callError?: Error,
-  lroError?: Error
-) {
-  const innerStub = lroError
-    ? sinon.stub().rejects(lroError)
-    : sinon.stub().resolves([response]);
-  const mockOperation = {
-    promise: innerStub,
-  };
-  return callError
-    ? sinon.stub().rejects(callError)
-    : sinon.stub().resolves([mockOperation]);
+function stubLongRunningCall<ResponseType>(response?: ResponseType, callError?: Error, lroError?: Error) {
+    const innerStub = lroError ? sinon.stub().rejects(lroError) : sinon.stub().resolves([response]);
+    const mockOperation = {
+        promise: innerStub,
+    };
+    return callError ? sinon.stub().rejects(callError) : sinon.stub().resolves([mockOperation]);
 }
 
-function stubLongRunningCallWithCallback<ResponseType>(
-  response?: ResponseType,
-  callError?: Error,
-  lroError?: Error
-) {
-  const innerStub = lroError
-    ? sinon.stub().rejects(lroError)
-    : sinon.stub().resolves([response]);
-  const mockOperation = {
-    promise: innerStub,
-  };
-  return callError
-    ? sinon.stub().callsArgWith(2, callError)
-    : sinon.stub().callsArgWith(2, null, mockOperation);
+function stubLongRunningCallWithCallback<ResponseType>(response?: ResponseType, callError?: Error, lroError?: Error) {
+    const innerStub = lroError ? sinon.stub().rejects(lroError) : sinon.stub().resolves([response]);
+    const mockOperation = {
+        promise: innerStub,
+    };
+    return callError ? sinon.stub().callsArgWith(2, callError) : sinon.stub().callsArgWith(2, null, mockOperation);
 }
 
-function stubPageStreamingCall<ResponseType>(
-  responses?: ResponseType[],
-  error?: Error
-) {
-  const pagingStub = sinon.stub();
-  if (responses) {
-    for (let i = 0; i < responses.length; ++i) {
-      pagingStub.onCall(i).callsArgWith(2, null, responses[i]);
+function stubPageStreamingCall<ResponseType>(responses?: ResponseType[], error?: Error) {
+    const pagingStub = sinon.stub();
+    if (responses) {
+        for (let i = 0; i < responses.length; ++i) {
+            pagingStub.onCall(i).callsArgWith(2, null, responses[i]);
+        }
     }
-  }
-  const transformStub = error
-    ? sinon.stub().callsArgWith(2, error)
-    : pagingStub;
-  const mockStream = new PassThrough({
-    objectMode: true,
-    transform: transformStub,
-  });
-  // trigger as many responses as needed
-  if (responses) {
-    for (let i = 0; i < responses.length; ++i) {
-      setImmediate(() => {
-        mockStream.write({});
-      });
+    const transformStub = error ? sinon.stub().callsArgWith(2, error) : pagingStub;
+    const mockStream = new PassThrough({
+        objectMode: true,
+        transform: transformStub,
+    });
+    // trigger as many responses as needed
+    if (responses) {
+        for (let i = 0; i < responses.length; ++i) {
+            setImmediate(() => { mockStream.write({}); });
+        }
+        setImmediate(() => { mockStream.end(); });
+    } else {
+        setImmediate(() => { mockStream.write({}); });
+        setImmediate(() => { mockStream.end(); });
     }
-    setImmediate(() => {
-      mockStream.end();
-    });
-  } else {
-    setImmediate(() => {
-      mockStream.write({});
-    });
-    setImmediate(() => {
-      mockStream.end();
-    });
-  }
-  return sinon.stub().returns(mockStream);
+    return sinon.stub().returns(mockStream);
 }
 
-function stubAsyncIterationCall<ResponseType>(
-  responses?: ResponseType[],
-  error?: Error
-) {
-  let counter = 0;
-  const asyncIterable = {
-    [Symbol.asyncIterator]() {
-      return {
-        async next() {
-          if (error) {
-            return Promise.reject(error);
-          }
-          if (counter >= responses!.length) {
-            return Promise.resolve({done: true, value: undefined});
-          }
-          return Promise.resolve({done: false, value: responses![counter++]});
-        },
-      };
-    },
-  };
-  return sinon.stub().returns(asyncIterable);
+function stubAsyncIterationCall<ResponseType>(responses?: ResponseType[], error?: Error) {
+    let counter = 0;
+    const asyncIterable = {
+        [Symbol.asyncIterator]() {
+            return {
+                async next() {
+                    if (error) {
+                        return Promise.reject(error);
+                    }
+                    if (counter >= responses!.length) {
+                        return Promise.resolve({done: true, value: undefined});
+                    }
+                    return Promise.resolve({done: false, value: responses![counter++]});
+                }
+            };
+        }
+    };
+    return sinon.stub().returns(asyncIterable);
 }
 
 describe('v2.BigtableTableAdminClient', () => {
-  it('has servicePath', () => {
-    const servicePath =
-      bigtabletableadminModule.v2.BigtableTableAdminClient.servicePath;
-    assert(servicePath);
-  });
-
-  it('has apiEndpoint', () => {
-    const apiEndpoint =
-      bigtabletableadminModule.v2.BigtableTableAdminClient.apiEndpoint;
-    assert(apiEndpoint);
-  });
-
-  it('has port', () => {
-    const port = bigtabletableadminModule.v2.BigtableTableAdminClient.port;
-    assert(port);
-    assert(typeof port === 'number');
-  });
-
-  it('should create a client with no option', () => {
-    const client = new bigtabletableadminModule.v2.BigtableTableAdminClient();
-    assert(client);
-  });
-
-  it('should create a client with gRPC fallback', () => {
-    const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-      fallback: true,
+    it('has servicePath', () => {
+        const servicePath = bigtabletableadminModule.v2.BigtableTableAdminClient.servicePath;
+        assert(servicePath);
     });
-    assert(client);
-  });
 
-  it('has initialize method and supports deferred initialization', async () => {
-    const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    assert.strictEqual(client.bigtableTableAdminStub, undefined);
-    await client.initialize();
-    assert(client.bigtableTableAdminStub);
-  });
-
-  it('has close method for the initialized client', done => {
-    const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
+    it('has apiEndpoint', () => {
+        const apiEndpoint = bigtabletableadminModule.v2.BigtableTableAdminClient.apiEndpoint;
+        assert(apiEndpoint);
     });
-    client.initialize();
-    assert(client.bigtableTableAdminStub);
-    client.close().then(() => {
-      done();
-    });
-  });
 
-  it('has close method for the non-initialized client', done => {
-    const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    assert.strictEqual(client.bigtableTableAdminStub, undefined);
-    client.close().then(() => {
-      done();
+    it('has port', () => {
+        const port = bigtabletableadminModule.v2.BigtableTableAdminClient.port;
+        assert(port);
+        assert(typeof port === 'number');
     });
-  });
 
-  it('has getProjectId method', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
-    const result = await client.getProjectId();
-    assert.strictEqual(result, fakeProjectId);
-    assert((client.auth.getProjectId as SinonStub).calledWithExactly());
-  });
-
-  it('has getProjectId method with callback', async () => {
-    const fakeProjectId = 'fake-project-id';
-    const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-      credentials: {client_email: 'bogus', private_key: 'bogus'},
-      projectId: 'bogus',
-    });
-    client.auth.getProjectId = sinon
-      .stub()
-      .callsArgWith(0, null, fakeProjectId);
-    const promise = new Promise((resolve, reject) => {
-      client.getProjectId((err?: Error | null, projectId?: string | null) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(projectId);
-        }
-      });
-    });
-    const result = await promise;
-    assert.strictEqual(result, fakeProjectId);
-  });
-
-  describe('createTable', () => {
-    it('invokes createTable without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateTableRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Table()
-      );
-      client.innerApiCalls.createTable = stubSimpleCall(expectedResponse);
-      const [response] = await client.createTable(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.createTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+    it('should create a client with no option', () => {
+        const client = new bigtabletableadminModule.v2.BigtableTableAdminClient();
+        assert(client);
     });
 
-    it('invokes createTable without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateTableRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Table()
-      );
-      client.innerApiCalls.createTable =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.createTable(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.ITable | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.createTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
+    it('should create a client with gRPC fallback', () => {
+        const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+            fallback: true,
+        });
+        assert(client);
     });
 
-    it('invokes createTable with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateTableRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.createTable = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.createTable(request), expectedError);
-      assert(
-        (client.innerApiCalls.createTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+    it('has initialize method and supports deferred initialization', async () => {
+        const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+        assert.strictEqual(client.bigtableTableAdminStub, undefined);
+        await client.initialize();
+        assert(client.bigtableTableAdminStub);
     });
 
-    it('invokes createTable with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateTableRequest()
-      );
-      request.parent = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.createTable(request), expectedError);
-    });
-  });
-
-  describe('getTable', () => {
-    it('invokes getTable without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetTableRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Table()
-      );
-      client.innerApiCalls.getTable = stubSimpleCall(expectedResponse);
-      const [response] = await client.getTable(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+    it('has close method for the initialized client', done => {
+        const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+        client.initialize();
+        assert(client.bigtableTableAdminStub);
+        client.close().then(() => {
+            done();
+        });
     });
 
-    it('invokes getTable without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetTableRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Table()
-      );
-      client.innerApiCalls.getTable =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.getTable(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.ITable | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
+    it('has close method for the non-initialized client', done => {
+        const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+        assert.strictEqual(client.bigtableTableAdminStub, undefined);
+        client.close().then(() => {
+            done();
+        });
     });
 
-    it('invokes getTable with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetTableRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.getTable = stubSimpleCall(undefined, expectedError);
-      await assert.rejects(client.getTable(request), expectedError);
-      assert(
-        (client.innerApiCalls.getTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+    it('has getProjectId method', async () => {
+        const fakeProjectId = 'fake-project-id';
+        const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+        client.auth.getProjectId = sinon.stub().resolves(fakeProjectId);
+        const result = await client.getProjectId();
+        assert.strictEqual(result, fakeProjectId);
+        assert((client.auth.getProjectId as SinonStub).calledWithExactly());
     });
 
-    it('invokes getTable with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetTableRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.getTable(request), expectedError);
-    });
-  });
-
-  describe('deleteTable', () => {
-    it('invokes deleteTable without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteTableRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.deleteTable = stubSimpleCall(expectedResponse);
-      const [response] = await client.deleteTable(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.deleteTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+    it('has getProjectId method with callback', async () => {
+        const fakeProjectId = 'fake-project-id';
+        const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+        client.auth.getProjectId = sinon.stub().callsArgWith(0, null, fakeProjectId);
+        const promise = new Promise((resolve, reject) => {
+            client.getProjectId((err?: Error|null, projectId?: string|null) => {
+                if (err) {
+                    reject(err);
+                } else {
+                    resolve(projectId);
+                }
+            });
+        });
+        const result = await promise;
+        assert.strictEqual(result, fakeProjectId);
     });
 
-    it('invokes deleteTable without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteTableRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.deleteTable =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.deleteTable(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.protobuf.IEmpty | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.deleteTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+    describe('createTable', () => {
+        it('invokes createTable without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateTableRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Table());
+            client.innerApiCalls.createTable = stubSimpleCall(expectedResponse);
+            const [response] = await client.createTable(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.createTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes deleteTable with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteTableRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.deleteTable = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.deleteTable(request), expectedError);
-      assert(
-        (client.innerApiCalls.deleteTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes createTable without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateTableRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Table());
+            client.innerApiCalls.createTable = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.createTable(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.ITable|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.createTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('invokes deleteTable with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteTableRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.deleteTable(request), expectedError);
-    });
-  });
-
-  describe('modifyColumnFamilies', () => {
-    it('invokes modifyColumnFamilies without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ModifyColumnFamiliesRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Table()
-      );
-      client.innerApiCalls.modifyColumnFamilies =
-        stubSimpleCall(expectedResponse);
-      const [response] = await client.modifyColumnFamilies(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.modifyColumnFamilies as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes createTable with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateTableRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.createTable = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.createTable(request), expectedError);
+            assert((client.innerApiCalls.createTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes modifyColumnFamilies without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ModifyColumnFamiliesRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Table()
-      );
-      client.innerApiCalls.modifyColumnFamilies =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.modifyColumnFamilies(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.ITable | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.modifyColumnFamilies as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
+        it('invokes createTable with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateTableRequest());
+            request.parent = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.createTable(request), expectedError);
+        });
     });
 
-    it('invokes modifyColumnFamilies with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ModifyColumnFamiliesRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.modifyColumnFamilies = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.modifyColumnFamilies(request), expectedError);
-      assert(
-        (client.innerApiCalls.modifyColumnFamilies as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+    describe('getTable', () => {
+        it('invokes getTable without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Table());
+            client.innerApiCalls.getTable = stubSimpleCall(expectedResponse);
+            const [response] = await client.getTable(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes modifyColumnFamilies with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ModifyColumnFamiliesRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.modifyColumnFamilies(request), expectedError);
-    });
-  });
-
-  describe('dropRowRange', () => {
-    it('invokes dropRowRange without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DropRowRangeRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.dropRowRange = stubSimpleCall(expectedResponse);
-      const [response] = await client.dropRowRange(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.dropRowRange as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes getTable without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Table());
+            client.innerApiCalls.getTable = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.getTable(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.ITable|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('invokes dropRowRange without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DropRowRangeRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.dropRowRange =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.dropRowRange(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.protobuf.IEmpty | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.dropRowRange as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+        it('invokes getTable with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.getTable = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.getTable(request), expectedError);
+            assert((client.innerApiCalls.getTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes dropRowRange with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DropRowRangeRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.dropRowRange = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.dropRowRange(request), expectedError);
-      assert(
-        (client.innerApiCalls.dropRowRange as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+        it('invokes getTable with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetTableRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.getTable(request), expectedError);
+        });
     });
 
-    it('invokes dropRowRange with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DropRowRangeRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.dropRowRange(request), expectedError);
-    });
-  });
-
-  describe('generateConsistencyToken', () => {
-    it('invokes generateConsistencyToken without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GenerateConsistencyTokenRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GenerateConsistencyTokenResponse()
-      );
-      client.innerApiCalls.generateConsistencyToken =
-        stubSimpleCall(expectedResponse);
-      const [response] = await client.generateConsistencyToken(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.generateConsistencyToken as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+    describe('deleteTable', () => {
+        it('invokes deleteTable without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.deleteTable = stubSimpleCall(expectedResponse);
+            const [response] = await client.deleteTable(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.deleteTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes generateConsistencyToken without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GenerateConsistencyTokenRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GenerateConsistencyTokenResponse()
-      );
-      client.innerApiCalls.generateConsistencyToken =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.generateConsistencyToken(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.IGenerateConsistencyTokenResponse | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.generateConsistencyToken as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+        it('invokes deleteTable without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.deleteTable = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.deleteTable(
+                    request,
+                    (err?: Error|null, result?: protos.google.protobuf.IEmpty|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.deleteTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('invokes generateConsistencyToken with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GenerateConsistencyTokenRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.generateConsistencyToken = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(
-        client.generateConsistencyToken(request),
-        expectedError
-      );
-      assert(
-        (client.innerApiCalls.generateConsistencyToken as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes deleteTable with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.deleteTable = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.deleteTable(request), expectedError);
+            assert((client.innerApiCalls.deleteTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes generateConsistencyToken with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GenerateConsistencyTokenRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(
-        client.generateConsistencyToken(request),
-        expectedError
-      );
-    });
-  });
-
-  describe('checkConsistency', () => {
-    it('invokes checkConsistency without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CheckConsistencyRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CheckConsistencyResponse()
-      );
-      client.innerApiCalls.checkConsistency = stubSimpleCall(expectedResponse);
-      const [response] = await client.checkConsistency(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.checkConsistency as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+        it('invokes deleteTable with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteTableRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.deleteTable(request), expectedError);
+        });
     });
 
-    it('invokes checkConsistency without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CheckConsistencyRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CheckConsistencyResponse()
-      );
-      client.innerApiCalls.checkConsistency =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.checkConsistency(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.ICheckConsistencyResponse | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.checkConsistency as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+    describe('modifyColumnFamilies', () => {
+        it('invokes modifyColumnFamilies without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ModifyColumnFamiliesRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Table());
+            client.innerApiCalls.modifyColumnFamilies = stubSimpleCall(expectedResponse);
+            const [response] = await client.modifyColumnFamilies(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.modifyColumnFamilies as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes checkConsistency with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CheckConsistencyRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.checkConsistency = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.checkConsistency(request), expectedError);
-      assert(
-        (client.innerApiCalls.checkConsistency as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes modifyColumnFamilies without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ModifyColumnFamiliesRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Table());
+            client.innerApiCalls.modifyColumnFamilies = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.modifyColumnFamilies(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.ITable|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.modifyColumnFamilies as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('invokes checkConsistency with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CheckConsistencyRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.checkConsistency(request), expectedError);
-    });
-  });
-
-  describe('getSnapshot', () => {
-    it('invokes getSnapshot without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetSnapshotRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Snapshot()
-      );
-      client.innerApiCalls.getSnapshot = stubSimpleCall(expectedResponse);
-      const [response] = await client.getSnapshot(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getSnapshot as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes modifyColumnFamilies with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ModifyColumnFamiliesRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.modifyColumnFamilies = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.modifyColumnFamilies(request), expectedError);
+            assert((client.innerApiCalls.modifyColumnFamilies as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes getSnapshot without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetSnapshotRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Snapshot()
-      );
-      client.innerApiCalls.getSnapshot =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.getSnapshot(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.ISnapshot | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getSnapshot as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
+        it('invokes modifyColumnFamilies with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ModifyColumnFamiliesRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.modifyColumnFamilies(request), expectedError);
+        });
     });
 
-    it('invokes getSnapshot with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetSnapshotRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.getSnapshot = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.getSnapshot(request), expectedError);
-      assert(
-        (client.innerApiCalls.getSnapshot as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+    describe('dropRowRange', () => {
+        it('invokes dropRowRange without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DropRowRangeRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.dropRowRange = stubSimpleCall(expectedResponse);
+            const [response] = await client.dropRowRange(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.dropRowRange as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes getSnapshot with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetSnapshotRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.getSnapshot(request), expectedError);
-    });
-  });
-
-  describe('deleteSnapshot', () => {
-    it('invokes deleteSnapshot without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteSnapshotRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.deleteSnapshot = stubSimpleCall(expectedResponse);
-      const [response] = await client.deleteSnapshot(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.deleteSnapshot as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes dropRowRange without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DropRowRangeRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.dropRowRange = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.dropRowRange(
+                    request,
+                    (err?: Error|null, result?: protos.google.protobuf.IEmpty|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.dropRowRange as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('invokes deleteSnapshot without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteSnapshotRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.deleteSnapshot =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.deleteSnapshot(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.protobuf.IEmpty | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.deleteSnapshot as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+        it('invokes dropRowRange with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DropRowRangeRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.dropRowRange = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.dropRowRange(request), expectedError);
+            assert((client.innerApiCalls.dropRowRange as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes deleteSnapshot with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteSnapshotRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.deleteSnapshot = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.deleteSnapshot(request), expectedError);
-      assert(
-        (client.innerApiCalls.deleteSnapshot as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+        it('invokes dropRowRange with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DropRowRangeRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.dropRowRange(request), expectedError);
+        });
     });
 
-    it('invokes deleteSnapshot with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteSnapshotRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.deleteSnapshot(request), expectedError);
-    });
-  });
-
-  describe('getBackup', () => {
-    it('invokes getBackup without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetBackupRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Backup()
-      );
-      client.innerApiCalls.getBackup = stubSimpleCall(expectedResponse);
-      const [response] = await client.getBackup(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getBackup as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+    describe('generateConsistencyToken', () => {
+        it('invokes generateConsistencyToken without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GenerateConsistencyTokenRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.GenerateConsistencyTokenResponse());
+            client.innerApiCalls.generateConsistencyToken = stubSimpleCall(expectedResponse);
+            const [response] = await client.generateConsistencyToken(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.generateConsistencyToken as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes getBackup without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetBackupRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Backup()
-      );
-      client.innerApiCalls.getBackup =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.getBackup(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.IBackup | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getBackup as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+        it('invokes generateConsistencyToken without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GenerateConsistencyTokenRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.GenerateConsistencyTokenResponse());
+            client.innerApiCalls.generateConsistencyToken = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.generateConsistencyToken(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.IGenerateConsistencyTokenResponse|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.generateConsistencyToken as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('invokes getBackup with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetBackupRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.getBackup = stubSimpleCall(undefined, expectedError);
-      await assert.rejects(client.getBackup(request), expectedError);
-      assert(
-        (client.innerApiCalls.getBackup as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes generateConsistencyToken with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GenerateConsistencyTokenRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.generateConsistencyToken = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.generateConsistencyToken(request), expectedError);
+            assert((client.innerApiCalls.generateConsistencyToken as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes getBackup with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.GetBackupRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.getBackup(request), expectedError);
-    });
-  });
-
-  describe('updateBackup', () => {
-    it('invokes updateBackup without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.UpdateBackupRequest()
-      );
-      request.backup = {};
-      request.backup.name = '';
-      const expectedHeaderRequestParams = 'backup.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Backup()
-      );
-      client.innerApiCalls.updateBackup = stubSimpleCall(expectedResponse);
-      const [response] = await client.updateBackup(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.updateBackup as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+        it('invokes generateConsistencyToken with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GenerateConsistencyTokenRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.generateConsistencyToken(request), expectedError);
+        });
     });
 
-    it('invokes updateBackup without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.UpdateBackupRequest()
-      );
-      request.backup = {};
-      request.backup.name = '';
-      const expectedHeaderRequestParams = 'backup.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.Backup()
-      );
-      client.innerApiCalls.updateBackup =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.updateBackup(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.IBackup | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.updateBackup as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+    describe('checkConsistency', () => {
+        it('invokes checkConsistency without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CheckConsistencyRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.CheckConsistencyResponse());
+            client.innerApiCalls.checkConsistency = stubSimpleCall(expectedResponse);
+            const [response] = await client.checkConsistency(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.checkConsistency as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes updateBackup with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.UpdateBackupRequest()
-      );
-      request.backup = {};
-      request.backup.name = '';
-      const expectedHeaderRequestParams = 'backup.name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.updateBackup = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.updateBackup(request), expectedError);
-      assert(
-        (client.innerApiCalls.updateBackup as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes checkConsistency without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CheckConsistencyRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.CheckConsistencyResponse());
+            client.innerApiCalls.checkConsistency = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.checkConsistency(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.ICheckConsistencyResponse|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.checkConsistency as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('invokes updateBackup with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.UpdateBackupRequest()
-      );
-      request.backup = {};
-      request.backup.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.updateBackup(request), expectedError);
-    });
-  });
-
-  describe('deleteBackup', () => {
-    it('invokes deleteBackup without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteBackupRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.deleteBackup = stubSimpleCall(expectedResponse);
-      const [response] = await client.deleteBackup(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.deleteBackup as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes checkConsistency with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CheckConsistencyRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.checkConsistency = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.checkConsistency(request), expectedError);
+            assert((client.innerApiCalls.checkConsistency as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes deleteBackup without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteBackupRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.protobuf.Empty()
-      );
-      client.innerApiCalls.deleteBackup =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.deleteBackup(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.protobuf.IEmpty | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.deleteBackup as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
+        it('invokes checkConsistency with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CheckConsistencyRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.checkConsistency(request), expectedError);
+        });
     });
 
-    it('invokes deleteBackup with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteBackupRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.deleteBackup = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.deleteBackup(request), expectedError);
-      assert(
-        (client.innerApiCalls.deleteBackup as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+    describe('getSnapshot', () => {
+        it('invokes getSnapshot without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetSnapshotRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot());
+            client.innerApiCalls.getSnapshot = stubSimpleCall(expectedResponse);
+            const [response] = await client.getSnapshot(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getSnapshot as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes deleteBackup with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.DeleteBackupRequest()
-      );
-      request.name = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.deleteBackup(request), expectedError);
-    });
-  });
-
-  describe('getIamPolicy', () => {
-    it('invokes getIamPolicy without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.GetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.iam.v1.Policy()
-      );
-      client.innerApiCalls.getIamPolicy = stubSimpleCall(expectedResponse);
-      const [response] = await client.getIamPolicy(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getIamPolicy as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes getSnapshot without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetSnapshotRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot());
+            client.innerApiCalls.getSnapshot = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.getSnapshot(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.ISnapshot|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getSnapshot as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('invokes getIamPolicy without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.GetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.iam.v1.Policy()
-      );
-      client.innerApiCalls.getIamPolicy =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.getIamPolicy(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.iam.v1.IPolicy | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.getIamPolicy as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+        it('invokes getSnapshot with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetSnapshotRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.getSnapshot = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.getSnapshot(request), expectedError);
+            assert((client.innerApiCalls.getSnapshot as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes getIamPolicy with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.GetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.getIamPolicy = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.getIamPolicy(request), expectedError);
-      assert(
-        (client.innerApiCalls.getIamPolicy as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+        it('invokes getSnapshot with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetSnapshotRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.getSnapshot(request), expectedError);
+        });
     });
 
-    it('invokes getIamPolicy with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.GetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.getIamPolicy(request), expectedError);
-    });
-  });
-
-  describe('setIamPolicy', () => {
-    it('invokes setIamPolicy without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.SetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.iam.v1.Policy()
-      );
-      client.innerApiCalls.setIamPolicy = stubSimpleCall(expectedResponse);
-      const [response] = await client.setIamPolicy(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.setIamPolicy as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+    describe('deleteSnapshot', () => {
+        it('invokes deleteSnapshot without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteSnapshotRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.deleteSnapshot = stubSimpleCall(expectedResponse);
+            const [response] = await client.deleteSnapshot(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.deleteSnapshot as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes setIamPolicy without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.SetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.iam.v1.Policy()
-      );
-      client.innerApiCalls.setIamPolicy =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.setIamPolicy(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.iam.v1.IPolicy | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.setIamPolicy as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+        it('invokes deleteSnapshot without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteSnapshotRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.deleteSnapshot = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.deleteSnapshot(
+                    request,
+                    (err?: Error|null, result?: protos.google.protobuf.IEmpty|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.deleteSnapshot as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('invokes setIamPolicy with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.SetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.setIamPolicy = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.setIamPolicy(request), expectedError);
-      assert(
-        (client.innerApiCalls.setIamPolicy as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes deleteSnapshot with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteSnapshotRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.deleteSnapshot = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.deleteSnapshot(request), expectedError);
+            assert((client.innerApiCalls.deleteSnapshot as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes setIamPolicy with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.SetIamPolicyRequest()
-      );
-      request.resource = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.setIamPolicy(request), expectedError);
-    });
-  });
-
-  describe('testIamPermissions', () => {
-    it('invokes testIamPermissions without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.TestIamPermissionsRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.iam.v1.TestIamPermissionsResponse()
-      );
-      client.innerApiCalls.testIamPermissions =
-        stubSimpleCall(expectedResponse);
-      const [response] = await client.testIamPermissions(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.testIamPermissions as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+        it('invokes deleteSnapshot with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteSnapshotRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.deleteSnapshot(request), expectedError);
+        });
     });
 
-    it('invokes testIamPermissions without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.TestIamPermissionsRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.iam.v1.TestIamPermissionsResponse()
-      );
-      client.innerApiCalls.testIamPermissions =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.testIamPermissions(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.iam.v1.ITestIamPermissionsResponse | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.testIamPermissions as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+    describe('getBackup', () => {
+        it('invokes getBackup without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetBackupRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Backup());
+            client.innerApiCalls.getBackup = stubSimpleCall(expectedResponse);
+            const [response] = await client.getBackup(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes testIamPermissions with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.TestIamPermissionsRequest()
-      );
-      request.resource = '';
-      const expectedHeaderRequestParams = 'resource=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.testIamPermissions = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.testIamPermissions(request), expectedError);
-      assert(
-        (client.innerApiCalls.testIamPermissions as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes getBackup without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetBackupRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Backup());
+            client.innerApiCalls.getBackup = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.getBackup(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.IBackup|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('invokes testIamPermissions with closed client', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.iam.v1.TestIamPermissionsRequest()
-      );
-      request.resource = '';
-      const expectedError = new Error('The client has already been closed.');
-      client.close();
-      await assert.rejects(client.testIamPermissions(request), expectedError);
-    });
-  });
-
-  describe('createTableFromSnapshot', () => {
-    it('invokes createTableFromSnapshot without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateTableFromSnapshotRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.createTableFromSnapshot =
-        stubLongRunningCall(expectedResponse);
-      const [operation] = await client.createTableFromSnapshot(request);
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.createTableFromSnapshot as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes getBackup with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetBackupRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.getBackup = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.getBackup(request), expectedError);
+            assert((client.innerApiCalls.getBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes createTableFromSnapshot without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateTableFromSnapshotRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.createTableFromSnapshot =
-        stubLongRunningCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.createTableFromSnapshot(
-          request,
-          (
-            err?: Error | null,
-            result?: LROperation<
-              protos.google.bigtable.admin.v2.ITable,
-              protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata
-            > | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const operation = (await promise) as LROperation<
-        protos.google.bigtable.admin.v2.ITable,
-        protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata
-      >;
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.createTableFromSnapshot as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
+        it('invokes getBackup with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.GetBackupRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.getBackup(request), expectedError);
+        });
     });
 
-    it('invokes createTableFromSnapshot with call error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateTableFromSnapshotRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.createTableFromSnapshot = stubLongRunningCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(
-        client.createTableFromSnapshot(request),
-        expectedError
-      );
-      assert(
-        (client.innerApiCalls.createTableFromSnapshot as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+    describe('updateBackup', () => {
+        it('invokes updateBackup without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.UpdateBackupRequest());
+            request.backup = {};
+            request.backup.name = '';
+            const expectedHeaderRequestParams = "backup.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Backup());
+            client.innerApiCalls.updateBackup = stubSimpleCall(expectedResponse);
+            const [response] = await client.updateBackup(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.updateBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes createTableFromSnapshot with LRO error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateTableFromSnapshotRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.createTableFromSnapshot = stubLongRunningCall(
-        undefined,
-        undefined,
-        expectedError
-      );
-      const [operation] = await client.createTableFromSnapshot(request);
-      await assert.rejects(operation.promise(), expectedError);
-      assert(
-        (client.innerApiCalls.createTableFromSnapshot as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes updateBackup without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.UpdateBackupRequest());
+            request.backup = {};
+            request.backup.name = '';
+            const expectedHeaderRequestParams = "backup.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.bigtable.admin.v2.Backup());
+            client.innerApiCalls.updateBackup = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.updateBackup(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.IBackup|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.updateBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('invokes checkCreateTableFromSnapshotProgress without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const expectedResponse = generateSampleMessage(
-        new operationsProtos.google.longrunning.Operation()
-      );
-      expectedResponse.name = 'test';
-      expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
-      expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')};
-
-      client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
-      const decodedOperation =
-        await client.checkCreateTableFromSnapshotProgress(
-          expectedResponse.name
-        );
-      assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
-      assert(decodedOperation.metadata);
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
+        it('invokes updateBackup with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.UpdateBackupRequest());
+            request.backup = {};
+            request.backup.name = '';
+            const expectedHeaderRequestParams = "backup.name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.updateBackup = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.updateBackup(request), expectedError);
+            assert((client.innerApiCalls.updateBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes checkCreateTableFromSnapshotProgress with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const expectedError = new Error('expected');
-
-      client.operationsClient.getOperation = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(
-        client.checkCreateTableFromSnapshotProgress(''),
-        expectedError
-      );
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-  });
-
-  describe('snapshotTable', () => {
-    it('invokes snapshotTable without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.SnapshotTableRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.snapshotTable =
-        stubLongRunningCall(expectedResponse);
-      const [operation] = await client.snapshotTable(request);
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.snapshotTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+        it('invokes updateBackup with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.UpdateBackupRequest());
+            request.backup = {};
+            request.backup.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.updateBackup(request), expectedError);
+        });
     });
 
-    it('invokes snapshotTable without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.SnapshotTableRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.snapshotTable =
-        stubLongRunningCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.snapshotTable(
-          request,
-          (
-            err?: Error | null,
-            result?: LROperation<
-              protos.google.bigtable.admin.v2.ISnapshot,
-              protos.google.bigtable.admin.v2.ISnapshotTableMetadata
-            > | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const operation = (await promise) as LROperation<
-        protos.google.bigtable.admin.v2.ISnapshot,
-        protos.google.bigtable.admin.v2.ISnapshotTableMetadata
-      >;
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.snapshotTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+    describe('deleteBackup', () => {
+        it('invokes deleteBackup without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteBackupRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.deleteBackup = stubSimpleCall(expectedResponse);
+            const [response] = await client.deleteBackup(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.deleteBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes snapshotTable with call error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.SnapshotTableRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.snapshotTable = stubLongRunningCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.snapshotTable(request), expectedError);
-      assert(
-        (client.innerApiCalls.snapshotTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes deleteBackup without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteBackupRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.protobuf.Empty());
+            client.innerApiCalls.deleteBackup = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.deleteBackup(
+                    request,
+                    (err?: Error|null, result?: protos.google.protobuf.IEmpty|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.deleteBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('invokes snapshotTable with LRO error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.SnapshotTableRequest()
-      );
-      request.name = '';
-      const expectedHeaderRequestParams = 'name=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.snapshotTable = stubLongRunningCall(
-        undefined,
-        undefined,
-        expectedError
-      );
-      const [operation] = await client.snapshotTable(request);
-      await assert.rejects(operation.promise(), expectedError);
-      assert(
-        (client.innerApiCalls.snapshotTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes deleteBackup with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteBackupRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.deleteBackup = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.deleteBackup(request), expectedError);
+            assert((client.innerApiCalls.deleteBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes checkSnapshotTableProgress without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const expectedResponse = generateSampleMessage(
-        new operationsProtos.google.longrunning.Operation()
-      );
-      expectedResponse.name = 'test';
-      expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
-      expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')};
-
-      client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
-      const decodedOperation = await client.checkSnapshotTableProgress(
-        expectedResponse.name
-      );
-      assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
-      assert(decodedOperation.metadata);
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        it('invokes deleteBackup with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.DeleteBackupRequest());
+            request.name = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.deleteBackup(request), expectedError);
+        });
     });
 
-    it('invokes checkSnapshotTableProgress with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const expectedError = new Error('expected');
-
-      client.operationsClient.getOperation = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(
-        client.checkSnapshotTableProgress(''),
-        expectedError
-      );
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
-  });
-
-  describe('createBackup', () => {
-    it('invokes createBackup without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateBackupRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.createBackup = stubLongRunningCall(expectedResponse);
-      const [operation] = await client.createBackup(request);
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.createBackup as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+    describe('getIamPolicy', () => {
+        it('invokes getIamPolicy without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.GetIamPolicyRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.iam.v1.Policy());
+            client.innerApiCalls.getIamPolicy = stubSimpleCall(expectedResponse);
+            const [response] = await client.getIamPolicy(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getIamPolicy as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes createBackup without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateBackupRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.createBackup =
-        stubLongRunningCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.createBackup(
-          request,
-          (
-            err?: Error | null,
-            result?: LROperation<
-              protos.google.bigtable.admin.v2.IBackup,
-              protos.google.bigtable.admin.v2.ICreateBackupMetadata
-            > | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const operation = (await promise) as LROperation<
-        protos.google.bigtable.admin.v2.IBackup,
-        protos.google.bigtable.admin.v2.ICreateBackupMetadata
-      >;
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.createBackup as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+        it('invokes getIamPolicy without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.GetIamPolicyRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.iam.v1.Policy());
+            client.innerApiCalls.getIamPolicy = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.getIamPolicy(
+                    request,
+                    (err?: Error|null, result?: protos.google.iam.v1.IPolicy|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.getIamPolicy as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('invokes createBackup with call error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateBackupRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.createBackup = stubLongRunningCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.createBackup(request), expectedError);
-      assert(
-        (client.innerApiCalls.createBackup as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes getIamPolicy with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.GetIamPolicyRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.getIamPolicy = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.getIamPolicy(request), expectedError);
+            assert((client.innerApiCalls.getIamPolicy as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes createBackup with LRO error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.CreateBackupRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.createBackup = stubLongRunningCall(
-        undefined,
-        undefined,
-        expectedError
-      );
-      const [operation] = await client.createBackup(request);
-      await assert.rejects(operation.promise(), expectedError);
-      assert(
-        (client.innerApiCalls.createBackup as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+        it('invokes getIamPolicy with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.GetIamPolicyRequest());
+            request.resource = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.getIamPolicy(request), expectedError);
+        });
     });
 
-    it('invokes checkCreateBackupProgress without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const expectedResponse = generateSampleMessage(
-        new operationsProtos.google.longrunning.Operation()
-      );
-      expectedResponse.name = 'test';
-      expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
-      expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')};
-
-      client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
-      const decodedOperation = await client.checkCreateBackupProgress(
-        expectedResponse.name
-      );
-      assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
-      assert(decodedOperation.metadata);
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
-    });
+    describe('setIamPolicy', () => {
+        it('invokes setIamPolicy without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.SetIamPolicyRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.iam.v1.Policy());
+            client.innerApiCalls.setIamPolicy = stubSimpleCall(expectedResponse);
+            const [response] = await client.setIamPolicy(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.setIamPolicy as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes setIamPolicy without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.SetIamPolicyRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.iam.v1.Policy());
+            client.innerApiCalls.setIamPolicy = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.setIamPolicy(
+                    request,
+                    (err?: Error|null, result?: protos.google.iam.v1.IPolicy|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.setIamPolicy as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes setIamPolicy with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.SetIamPolicyRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.setIamPolicy = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.setIamPolicy(request), expectedError);
+            assert((client.innerApiCalls.setIamPolicy as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes checkCreateBackupProgress with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const expectedError = new Error('expected');
-
-      client.operationsClient.getOperation = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.checkCreateBackupProgress(''), expectedError);
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        it('invokes setIamPolicy with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.SetIamPolicyRequest());
+            request.resource = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.setIamPolicy(request), expectedError);
+        });
     });
-  });
-
-  describe('restoreTable', () => {
-    it('invokes restoreTable without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.RestoreTableRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.restoreTable = stubLongRunningCall(expectedResponse);
-      const [operation] = await client.restoreTable(request);
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.restoreTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+
+    describe('testIamPermissions', () => {
+        it('invokes testIamPermissions without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.TestIamPermissionsRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.iam.v1.TestIamPermissionsResponse());
+            client.innerApiCalls.testIamPermissions = stubSimpleCall(expectedResponse);
+            const [response] = await client.testIamPermissions(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.testIamPermissions as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes testIamPermissions without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.TestIamPermissionsRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.iam.v1.TestIamPermissionsResponse());
+            client.innerApiCalls.testIamPermissions = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.testIamPermissions(
+                    request,
+                    (err?: Error|null, result?: protos.google.iam.v1.ITestIamPermissionsResponse|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.testIamPermissions as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes testIamPermissions with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.TestIamPermissionsRequest());
+            request.resource = '';
+            const expectedHeaderRequestParams = "resource=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.testIamPermissions = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.testIamPermissions(request), expectedError);
+            assert((client.innerApiCalls.testIamPermissions as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes testIamPermissions with closed client', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.iam.v1.TestIamPermissionsRequest());
+            request.resource = '';
+            const expectedError = new Error('The client has already been closed.');
+            client.close();
+            await assert.rejects(client.testIamPermissions(request), expectedError);
+        });
     });
 
-    it('invokes restoreTable without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.RestoreTableRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = generateSampleMessage(
-        new protos.google.longrunning.Operation()
-      );
-      client.innerApiCalls.restoreTable =
-        stubLongRunningCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.restoreTable(
-          request,
-          (
-            err?: Error | null,
-            result?: LROperation<
-              protos.google.bigtable.admin.v2.ITable,
-              protos.google.bigtable.admin.v2.IRestoreTableMetadata
-            > | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
-            }
-          }
-        );
-      });
-      const operation = (await promise) as LROperation<
-        protos.google.bigtable.admin.v2.ITable,
-        protos.google.bigtable.admin.v2.IRestoreTableMetadata
-      >;
-      const [response] = await operation.promise();
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.restoreTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
+    describe('createTableFromSnapshot', () => {
+        it('invokes createTableFromSnapshot without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateTableFromSnapshotRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.createTableFromSnapshot = stubLongRunningCall(expectedResponse);
+            const [operation] = await client.createTableFromSnapshot(request);
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.createTableFromSnapshot as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes createTableFromSnapshot without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateTableFromSnapshotRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.createTableFromSnapshot = stubLongRunningCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.createTableFromSnapshot(
+                    request,
+                    (err?: Error|null,
+                     result?: LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata>|null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const operation = await promise as LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.ICreateTableFromSnapshotMetadata>;
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.createTableFromSnapshot as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes createTableFromSnapshot with call error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateTableFromSnapshotRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.createTableFromSnapshot = stubLongRunningCall(undefined, expectedError);
+            await assert.rejects(client.createTableFromSnapshot(request), expectedError);
+            assert((client.innerApiCalls.createTableFromSnapshot as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes createTableFromSnapshot with LRO error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateTableFromSnapshotRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.createTableFromSnapshot = stubLongRunningCall(undefined, undefined, expectedError);
+            const [operation] = await client.createTableFromSnapshot(request);
+            await assert.rejects(operation.promise(), expectedError);
+            assert((client.innerApiCalls.createTableFromSnapshot as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes checkCreateTableFromSnapshotProgress without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedResponse = generateSampleMessage(new operationsProtos.google.longrunning.Operation());
+            expectedResponse.name = 'test';
+            expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
+            expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')}
+
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const decodedOperation = await client.checkCreateTableFromSnapshotProgress(expectedResponse.name);
+            assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
+            assert(decodedOperation.metadata);
+            assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        });
+
+        it('invokes checkCreateTableFromSnapshotProgress with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedError = new Error('expected');
+
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.checkCreateTableFromSnapshotProgress(''), expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
     });
 
-    it('invokes restoreTable with call error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.RestoreTableRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.restoreTable = stubLongRunningCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.restoreTable(request), expectedError);
-      assert(
-        (client.innerApiCalls.restoreTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+    describe('undeleteTable', () => {
+        it('invokes undeleteTable without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.UndeleteTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.undeleteTable = stubLongRunningCall(expectedResponse);
+            const [operation] = await client.undeleteTable(request);
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.undeleteTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes undeleteTable without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.UndeleteTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.undeleteTable = stubLongRunningCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.undeleteTable(
+                    request,
+                    (err?: Error|null,
+                     result?: LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IUndeleteTableMetadata>|null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const operation = await promise as LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IUndeleteTableMetadata>;
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.undeleteTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes undeleteTable with call error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.UndeleteTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.undeleteTable = stubLongRunningCall(undefined, expectedError);
+            await assert.rejects(client.undeleteTable(request), expectedError);
+            assert((client.innerApiCalls.undeleteTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes undeleteTable with LRO error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.UndeleteTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.undeleteTable = stubLongRunningCall(undefined, undefined, expectedError);
+            const [operation] = await client.undeleteTable(request);
+            await assert.rejects(operation.promise(), expectedError);
+            assert((client.innerApiCalls.undeleteTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes checkUndeleteTableProgress without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedResponse = generateSampleMessage(new operationsProtos.google.longrunning.Operation());
+            expectedResponse.name = 'test';
+            expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
+            expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')}
+
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const decodedOperation = await client.checkUndeleteTableProgress(expectedResponse.name);
+            assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
+            assert(decodedOperation.metadata);
+            assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        });
+
+        it('invokes checkUndeleteTableProgress with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedError = new Error('expected');
+
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.checkUndeleteTableProgress(''), expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
     });
 
-    it('invokes restoreTable with LRO error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.RestoreTableRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.restoreTable = stubLongRunningCall(
-        undefined,
-        undefined,
-        expectedError
-      );
-      const [operation] = await client.restoreTable(request);
-      await assert.rejects(operation.promise(), expectedError);
-      assert(
-        (client.innerApiCalls.restoreTable as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+    describe('snapshotTable', () => {
+        it('invokes snapshotTable without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.SnapshotTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.snapshotTable = stubLongRunningCall(expectedResponse);
+            const [operation] = await client.snapshotTable(request);
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.snapshotTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes snapshotTable without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.SnapshotTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.snapshotTable = stubLongRunningCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.snapshotTable(
+                    request,
+                    (err?: Error|null,
+                     result?: LROperation<protos.google.bigtable.admin.v2.ISnapshot, protos.google.bigtable.admin.v2.ISnapshotTableMetadata>|null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const operation = await promise as LROperation<protos.google.bigtable.admin.v2.ISnapshot, protos.google.bigtable.admin.v2.ISnapshotTableMetadata>;
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.snapshotTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes snapshotTable with call error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.SnapshotTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.snapshotTable = stubLongRunningCall(undefined, expectedError);
+            await assert.rejects(client.snapshotTable(request), expectedError);
+            assert((client.innerApiCalls.snapshotTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes snapshotTable with LRO error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.SnapshotTableRequest());
+            request.name = '';
+            const expectedHeaderRequestParams = "name=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.snapshotTable = stubLongRunningCall(undefined, undefined, expectedError);
+            const [operation] = await client.snapshotTable(request);
+            await assert.rejects(operation.promise(), expectedError);
+            assert((client.innerApiCalls.snapshotTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes checkSnapshotTableProgress without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedResponse = generateSampleMessage(new operationsProtos.google.longrunning.Operation());
+            expectedResponse.name = 'test';
+            expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
+            expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')}
+
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const decodedOperation = await client.checkSnapshotTableProgress(expectedResponse.name);
+            assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
+            assert(decodedOperation.metadata);
+            assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        });
+
+        it('invokes checkSnapshotTableProgress with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedError = new Error('expected');
+
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.checkSnapshotTableProgress(''), expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
     });
 
-    it('invokes checkRestoreTableProgress without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const expectedResponse = generateSampleMessage(
-        new operationsProtos.google.longrunning.Operation()
-      );
-      expectedResponse.name = 'test';
-      expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
-      expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')};
-
-      client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
-      const decodedOperation = await client.checkRestoreTableProgress(
-        expectedResponse.name
-      );
-      assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
-      assert(decodedOperation.metadata);
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+    describe('createBackup', () => {
+        it('invokes createBackup without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateBackupRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.createBackup = stubLongRunningCall(expectedResponse);
+            const [operation] = await client.createBackup(request);
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.createBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes createBackup without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateBackupRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.createBackup = stubLongRunningCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.createBackup(
+                    request,
+                    (err?: Error|null,
+                     result?: LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICreateBackupMetadata>|null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const operation = await promise as LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICreateBackupMetadata>;
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.createBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes createBackup with call error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateBackupRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.createBackup = stubLongRunningCall(undefined, expectedError);
+            await assert.rejects(client.createBackup(request), expectedError);
+            assert((client.innerApiCalls.createBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes createBackup with LRO error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CreateBackupRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.createBackup = stubLongRunningCall(undefined, undefined, expectedError);
+            const [operation] = await client.createBackup(request);
+            await assert.rejects(operation.promise(), expectedError);
+            assert((client.innerApiCalls.createBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes checkCreateBackupProgress without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedResponse = generateSampleMessage(new operationsProtos.google.longrunning.Operation());
+            expectedResponse.name = 'test';
+            expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
+            expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')}
+
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const decodedOperation = await client.checkCreateBackupProgress(expectedResponse.name);
+            assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
+            assert(decodedOperation.metadata);
+            assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        });
+
+        it('invokes checkCreateBackupProgress with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedError = new Error('expected');
+
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.checkCreateBackupProgress(''), expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
     });
 
-    it('invokes checkRestoreTableProgress with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const expectedError = new Error('expected');
-
-      client.operationsClient.getOperation = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.checkRestoreTableProgress(''), expectedError);
-      assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+    describe('restoreTable', () => {
+        it('invokes restoreTable without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.RestoreTableRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.restoreTable = stubLongRunningCall(expectedResponse);
+            const [operation] = await client.restoreTable(request);
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.restoreTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes restoreTable without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.RestoreTableRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.restoreTable = stubLongRunningCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.restoreTable(
+                    request,
+                    (err?: Error|null,
+                     result?: LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IRestoreTableMetadata>|null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const operation = await promise as LROperation<protos.google.bigtable.admin.v2.ITable, protos.google.bigtable.admin.v2.IRestoreTableMetadata>;
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.restoreTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes restoreTable with call error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.RestoreTableRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.restoreTable = stubLongRunningCall(undefined, expectedError);
+            await assert.rejects(client.restoreTable(request), expectedError);
+            assert((client.innerApiCalls.restoreTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes restoreTable with LRO error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.RestoreTableRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.restoreTable = stubLongRunningCall(undefined, undefined, expectedError);
+            const [operation] = await client.restoreTable(request);
+            await assert.rejects(operation.promise(), expectedError);
+            assert((client.innerApiCalls.restoreTable as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes checkRestoreTableProgress without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedResponse = generateSampleMessage(new operationsProtos.google.longrunning.Operation());
+            expectedResponse.name = 'test';
+            expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
+            expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')}
+
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const decodedOperation = await client.checkRestoreTableProgress(expectedResponse.name);
+            assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
+            assert(decodedOperation.metadata);
+            assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        });
+
+        it('invokes checkRestoreTableProgress with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedError = new Error('expected');
+
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.checkRestoreTableProgress(''), expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
     });
-  });
-
-  describe('listTables', () => {
-    it('invokes listTables without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListTablesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
-      ];
-      client.innerApiCalls.listTables = stubSimpleCall(expectedResponse);
-      const [response] = await client.listTables(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listTables as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+
+    describe('copyBackup', () => {
+        it('invokes copyBackup without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CopyBackupRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.copyBackup = stubLongRunningCall(expectedResponse);
+            const [operation] = await client.copyBackup(request);
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.copyBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes copyBackup without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CopyBackupRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(new protos.google.longrunning.Operation());
+            client.innerApiCalls.copyBackup = stubLongRunningCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.copyBackup(
+                    request,
+                    (err?: Error|null,
+                     result?: LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICopyBackupMetadata>|null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const operation = await promise as LROperation<protos.google.bigtable.admin.v2.IBackup, protos.google.bigtable.admin.v2.ICopyBackupMetadata>;
+            const [response] = await operation.promise();
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.copyBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes copyBackup with call error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CopyBackupRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.copyBackup = stubLongRunningCall(undefined, expectedError);
+            await assert.rejects(client.copyBackup(request), expectedError);
+            assert((client.innerApiCalls.copyBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes copyBackup with LRO error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.CopyBackupRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.copyBackup = stubLongRunningCall(undefined, undefined, expectedError);
+            const [operation] = await client.copyBackup(request);
+            await assert.rejects(operation.promise(), expectedError);
+            assert((client.innerApiCalls.copyBackup as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes checkCopyBackupProgress without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedResponse = generateSampleMessage(new operationsProtos.google.longrunning.Operation());
+            expectedResponse.name = 'test';
+            expectedResponse.response = {type_url: 'url', value: Buffer.from('')};
+            expectedResponse.metadata = {type_url: 'url', value: Buffer.from('')}
+
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const decodedOperation = await client.checkCopyBackupProgress(expectedResponse.name);
+            assert.deepStrictEqual(decodedOperation.name, expectedResponse.name);
+            assert(decodedOperation.metadata);
+            assert((client.operationsClient.getOperation as SinonStub).getCall(0));
+        });
+
+        it('invokes checkCopyBackupProgress with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const expectedError = new Error('expected');
+
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.checkCopyBackupProgress(''), expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
     });
 
-    it('invokes listTables without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListTablesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
-      ];
-      client.innerApiCalls.listTables =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.listTables(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.ITable[] | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
+    describe('listTables', () => {
+        it('invokes listTables without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListTablesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
+            ];
+            client.innerApiCalls.listTables = stubSimpleCall(expectedResponse);
+            const [response] = await client.listTables(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listTables as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes listTables without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListTablesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
+            ];
+            client.innerApiCalls.listTables = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.listTables(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.ITable[]|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listTables as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
+
+        it('invokes listTables with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListTablesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.listTables = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.listTables(request), expectedError);
+            assert((client.innerApiCalls.listTables as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+
+        it('invokes listTablesStream without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListTablesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
+            ];
+            client.descriptors.page.listTables.createStream = stubPageStreamingCall(expectedResponse);
+            const stream = client.listTablesStream(request);
+            const promise = new Promise((resolve, reject) => {
+                const responses: protos.google.bigtable.admin.v2.Table[] = [];
+                stream.on('data', (response: protos.google.bigtable.admin.v2.Table) => {
+                    responses.push(response);
+                });
+                stream.on('end', () => {
+                    resolve(responses);
+                });
+                stream.on('error', (err: Error) => {
+                    reject(err);
+                });
+            });
+            const responses = await promise;
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert((client.descriptors.page.listTables.createStream as SinonStub)
+                .getCall(0).calledWith(client.innerApiCalls.listTables, request));
+            assert.strictEqual(
+                (client.descriptors.page.listTables.createStream as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+
+        it('invokes listTablesStream with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListTablesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedError = new Error('expected');
+            client.descriptors.page.listTables.createStream = stubPageStreamingCall(undefined, expectedError);
+            const stream = client.listTablesStream(request);
+            const promise = new Promise((resolve, reject) => {
+                const responses: protos.google.bigtable.admin.v2.Table[] = [];
+                stream.on('data', (response: protos.google.bigtable.admin.v2.Table) => {
+                    responses.push(response);
+                });
+                stream.on('end', () => {
+                    resolve(responses);
+                });
+                stream.on('error', (err: Error) => {
+                    reject(err);
+                });
+            });
+            await assert.rejects(promise, expectedError);
+            assert((client.descriptors.page.listTables.createStream as SinonStub)
+                .getCall(0).calledWith(client.innerApiCalls.listTables, request));
+            assert.strictEqual(
+                (client.descriptors.page.listTables.createStream as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+
+        it('uses async iteration with listTables without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListTablesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
+            ];
+            client.descriptors.page.listTables.asyncIterate = stubAsyncIterationCall(expectedResponse);
+            const responses: protos.google.bigtable.admin.v2.ITable[] = [];
+            const iterable = client.listTablesAsync(request);
+            for await (const resource of iterable) {
+                responses.push(resource!);
             }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listTables as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert.deepStrictEqual(
+                (client.descriptors.page.listTables.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.descriptors.page.listTables.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
 
-    it('invokes listTables with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListTablesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.listTables = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.listTables(request), expectedError);
-      assert(
-        (client.innerApiCalls.listTables as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+        it('uses async iteration with listTables with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListTablesRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";const expectedError = new Error('expected');
+            client.descriptors.page.listTables.asyncIterate = stubAsyncIterationCall(undefined, expectedError);
+            const iterable = client.listTablesAsync(request);
+            await assert.rejects(async () => {
+                const responses: protos.google.bigtable.admin.v2.ITable[] = [];
+                for await (const resource of iterable) {
+                    responses.push(resource!);
+                }
+            });
+            assert.deepStrictEqual(
+                (client.descriptors.page.listTables.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.descriptors.page.listTables.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
     });
 
-    it('invokes listTablesStream without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListTablesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
-      ];
-      client.descriptors.page.listTables.createStream =
-        stubPageStreamingCall(expectedResponse);
-      const stream = client.listTablesStream(request);
-      const promise = new Promise((resolve, reject) => {
-        const responses: protos.google.bigtable.admin.v2.Table[] = [];
-        stream.on('data', (response: protos.google.bigtable.admin.v2.Table) => {
-          responses.push(response);
-        });
-        stream.on('end', () => {
-          resolve(responses);
-        });
-        stream.on('error', (err: Error) => {
-          reject(err);
-        });
-      });
-      const responses = await promise;
-      assert.deepStrictEqual(responses, expectedResponse);
-      assert(
-        (client.descriptors.page.listTables.createStream as SinonStub)
-          .getCall(0)
-          .calledWith(client.innerApiCalls.listTables, request)
-      );
-      assert.strictEqual(
-        (client.descriptors.page.listTables.createStream as SinonStub).getCall(
-          0
-        ).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
+    describe('listSnapshots', () => {
+        it('invokes listSnapshots without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListSnapshotsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
+            ];
+            client.innerApiCalls.listSnapshots = stubSimpleCall(expectedResponse);
+            const [response] = await client.listSnapshots(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listSnapshots as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes listTablesStream with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListTablesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedError = new Error('expected');
-      client.descriptors.page.listTables.createStream = stubPageStreamingCall(
-        undefined,
-        expectedError
-      );
-      const stream = client.listTablesStream(request);
-      const promise = new Promise((resolve, reject) => {
-        const responses: protos.google.bigtable.admin.v2.Table[] = [];
-        stream.on('data', (response: protos.google.bigtable.admin.v2.Table) => {
-          responses.push(response);
-        });
-        stream.on('end', () => {
-          resolve(responses);
-        });
-        stream.on('error', (err: Error) => {
-          reject(err);
-        });
-      });
-      await assert.rejects(promise, expectedError);
-      assert(
-        (client.descriptors.page.listTables.createStream as SinonStub)
-          .getCall(0)
-          .calledWith(client.innerApiCalls.listTables, request)
-      );
-      assert.strictEqual(
-        (client.descriptors.page.listTables.createStream as SinonStub).getCall(
-          0
-        ).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
+        it('invokes listSnapshots without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListSnapshotsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
+            ];
+            client.innerApiCalls.listSnapshots = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.listSnapshots(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.ISnapshot[]|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listSnapshots as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('uses async iteration with listTables without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListTablesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Table()),
-      ];
-      client.descriptors.page.listTables.asyncIterate =
-        stubAsyncIterationCall(expectedResponse);
-      const responses: protos.google.bigtable.admin.v2.ITable[] = [];
-      const iterable = client.listTablesAsync(request);
-      for await (const resource of iterable) {
-        responses.push(resource!);
-      }
-      assert.deepStrictEqual(responses, expectedResponse);
-      assert.deepStrictEqual(
-        (client.descriptors.page.listTables.asyncIterate as SinonStub).getCall(
-          0
-        ).args[1],
-        request
-      );
-      assert.strictEqual(
-        (client.descriptors.page.listTables.asyncIterate as SinonStub).getCall(
-          0
-        ).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
+        it('invokes listSnapshots with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListSnapshotsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.listSnapshots = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.listSnapshots(request), expectedError);
+            assert((client.innerApiCalls.listSnapshots as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('uses async iteration with listTables with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListTablesRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedError = new Error('expected');
-      client.descriptors.page.listTables.asyncIterate = stubAsyncIterationCall(
-        undefined,
-        expectedError
-      );
-      const iterable = client.listTablesAsync(request);
-      await assert.rejects(async () => {
-        const responses: protos.google.bigtable.admin.v2.ITable[] = [];
-        for await (const resource of iterable) {
-          responses.push(resource!);
-        }
-      });
-      assert.deepStrictEqual(
-        (client.descriptors.page.listTables.asyncIterate as SinonStub).getCall(
-          0
-        ).args[1],
-        request
-      );
-      assert.strictEqual(
-        (client.descriptors.page.listTables.asyncIterate as SinonStub).getCall(
-          0
-        ).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
-  });
-
-  describe('listSnapshots', () => {
-    it('invokes listSnapshots without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListSnapshotsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
-      ];
-      client.innerApiCalls.listSnapshots = stubSimpleCall(expectedResponse);
-      const [response] = await client.listSnapshots(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listSnapshots as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes listSnapshotsStream without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListSnapshotsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
+            ];
+            client.descriptors.page.listSnapshots.createStream = stubPageStreamingCall(expectedResponse);
+            const stream = client.listSnapshotsStream(request);
+            const promise = new Promise((resolve, reject) => {
+                const responses: protos.google.bigtable.admin.v2.Snapshot[] = [];
+                stream.on('data', (response: protos.google.bigtable.admin.v2.Snapshot) => {
+                    responses.push(response);
+                });
+                stream.on('end', () => {
+                    resolve(responses);
+                });
+                stream.on('error', (err: Error) => {
+                    reject(err);
+                });
+            });
+            const responses = await promise;
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert((client.descriptors.page.listSnapshots.createStream as SinonStub)
+                .getCall(0).calledWith(client.innerApiCalls.listSnapshots, request));
+            assert.strictEqual(
+                (client.descriptors.page.listSnapshots.createStream as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
 
-    it('invokes listSnapshots without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListSnapshotsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
-      ];
-      client.innerApiCalls.listSnapshots =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.listSnapshots(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.ISnapshot[] | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
+        it('invokes listSnapshotsStream with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListSnapshotsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedError = new Error('expected');
+            client.descriptors.page.listSnapshots.createStream = stubPageStreamingCall(undefined, expectedError);
+            const stream = client.listSnapshotsStream(request);
+            const promise = new Promise((resolve, reject) => {
+                const responses: protos.google.bigtable.admin.v2.Snapshot[] = [];
+                stream.on('data', (response: protos.google.bigtable.admin.v2.Snapshot) => {
+                    responses.push(response);
+                });
+                stream.on('end', () => {
+                    resolve(responses);
+                });
+                stream.on('error', (err: Error) => {
+                    reject(err);
+                });
+            });
+            await assert.rejects(promise, expectedError);
+            assert((client.descriptors.page.listSnapshots.createStream as SinonStub)
+                .getCall(0).calledWith(client.innerApiCalls.listSnapshots, request));
+            assert.strictEqual(
+                (client.descriptors.page.listSnapshots.createStream as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+
+        it('uses async iteration with listSnapshots without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListSnapshotsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
+            ];
+            client.descriptors.page.listSnapshots.asyncIterate = stubAsyncIterationCall(expectedResponse);
+            const responses: protos.google.bigtable.admin.v2.ISnapshot[] = [];
+            const iterable = client.listSnapshotsAsync(request);
+            for await (const resource of iterable) {
+                responses.push(resource!);
             }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listSnapshots as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert.deepStrictEqual(
+                (client.descriptors.page.listSnapshots.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.descriptors.page.listSnapshots.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
 
-    it('invokes listSnapshots with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListSnapshotsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.listSnapshots = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.listSnapshots(request), expectedError);
-      assert(
-        (client.innerApiCalls.listSnapshots as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+        it('uses async iteration with listSnapshots with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListSnapshotsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";const expectedError = new Error('expected');
+            client.descriptors.page.listSnapshots.asyncIterate = stubAsyncIterationCall(undefined, expectedError);
+            const iterable = client.listSnapshotsAsync(request);
+            await assert.rejects(async () => {
+                const responses: protos.google.bigtable.admin.v2.ISnapshot[] = [];
+                for await (const resource of iterable) {
+                    responses.push(resource!);
+                }
+            });
+            assert.deepStrictEqual(
+                (client.descriptors.page.listSnapshots.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.descriptors.page.listSnapshots.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
     });
 
-    it('invokes listSnapshotsStream without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListSnapshotsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
-      ];
-      client.descriptors.page.listSnapshots.createStream =
-        stubPageStreamingCall(expectedResponse);
-      const stream = client.listSnapshotsStream(request);
-      const promise = new Promise((resolve, reject) => {
-        const responses: protos.google.bigtable.admin.v2.Snapshot[] = [];
-        stream.on(
-          'data',
-          (response: protos.google.bigtable.admin.v2.Snapshot) => {
-            responses.push(response);
-          }
-        );
-        stream.on('end', () => {
-          resolve(responses);
-        });
-        stream.on('error', (err: Error) => {
-          reject(err);
-        });
-      });
-      const responses = await promise;
-      assert.deepStrictEqual(responses, expectedResponse);
-      assert(
-        (client.descriptors.page.listSnapshots.createStream as SinonStub)
-          .getCall(0)
-          .calledWith(client.innerApiCalls.listSnapshots, request)
-      );
-      assert.strictEqual(
-        (
-          client.descriptors.page.listSnapshots.createStream as SinonStub
-        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
+    describe('listBackups', () => {
+        it('invokes listBackups without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListBackupsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
+            ];
+            client.innerApiCalls.listBackups = stubSimpleCall(expectedResponse);
+            const [response] = await client.listBackups(request);
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listBackups as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('invokes listSnapshotsStream with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListSnapshotsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedError = new Error('expected');
-      client.descriptors.page.listSnapshots.createStream =
-        stubPageStreamingCall(undefined, expectedError);
-      const stream = client.listSnapshotsStream(request);
-      const promise = new Promise((resolve, reject) => {
-        const responses: protos.google.bigtable.admin.v2.Snapshot[] = [];
-        stream.on(
-          'data',
-          (response: protos.google.bigtable.admin.v2.Snapshot) => {
-            responses.push(response);
-          }
-        );
-        stream.on('end', () => {
-          resolve(responses);
-        });
-        stream.on('error', (err: Error) => {
-          reject(err);
-        });
-      });
-      await assert.rejects(promise, expectedError);
-      assert(
-        (client.descriptors.page.listSnapshots.createStream as SinonStub)
-          .getCall(0)
-          .calledWith(client.innerApiCalls.listSnapshots, request)
-      );
-      assert.strictEqual(
-        (
-          client.descriptors.page.listSnapshots.createStream as SinonStub
-        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
+        it('invokes listBackups without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListBackupsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
+            ];
+            client.innerApiCalls.listBackups = stubSimpleCallWithCallback(expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.listBackups(
+                    request,
+                    (err?: Error|null, result?: protos.google.bigtable.admin.v2.IBackup[]|null) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.innerApiCalls.listBackups as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions /*, callback defined above */));
+        });
 
-    it('uses async iteration with listSnapshots without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListSnapshotsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Snapshot()),
-      ];
-      client.descriptors.page.listSnapshots.asyncIterate =
-        stubAsyncIterationCall(expectedResponse);
-      const responses: protos.google.bigtable.admin.v2.ISnapshot[] = [];
-      const iterable = client.listSnapshotsAsync(request);
-      for await (const resource of iterable) {
-        responses.push(resource!);
-      }
-      assert.deepStrictEqual(responses, expectedResponse);
-      assert.deepStrictEqual(
-        (
-          client.descriptors.page.listSnapshots.asyncIterate as SinonStub
-        ).getCall(0).args[1],
-        request
-      );
-      assert.strictEqual(
-        (
-          client.descriptors.page.listSnapshots.asyncIterate as SinonStub
-        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
+        it('invokes listBackups with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListBackupsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.innerApiCalls.listBackups = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.listBackups(request), expectedError);
+            assert((client.innerApiCalls.listBackups as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
 
-    it('uses async iteration with listSnapshots with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListSnapshotsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedError = new Error('expected');
-      client.descriptors.page.listSnapshots.asyncIterate =
-        stubAsyncIterationCall(undefined, expectedError);
-      const iterable = client.listSnapshotsAsync(request);
-      await assert.rejects(async () => {
-        const responses: protos.google.bigtable.admin.v2.ISnapshot[] = [];
-        for await (const resource of iterable) {
-          responses.push(resource!);
-        }
-      });
-      assert.deepStrictEqual(
-        (
-          client.descriptors.page.listSnapshots.asyncIterate as SinonStub
-        ).getCall(0).args[1],
-        request
-      );
-      assert.strictEqual(
-        (
-          client.descriptors.page.listSnapshots.asyncIterate as SinonStub
-        ).getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
-    });
-  });
-
-  describe('listBackups', () => {
-    it('invokes listBackups without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListBackupsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
-      ];
-      client.innerApiCalls.listBackups = stubSimpleCall(expectedResponse);
-      const [response] = await client.listBackups(request);
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listBackups as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
-    });
+        it('invokes listBackupsStream without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListBackupsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
+            ];
+            client.descriptors.page.listBackups.createStream = stubPageStreamingCall(expectedResponse);
+            const stream = client.listBackupsStream(request);
+            const promise = new Promise((resolve, reject) => {
+                const responses: protos.google.bigtable.admin.v2.Backup[] = [];
+                stream.on('data', (response: protos.google.bigtable.admin.v2.Backup) => {
+                    responses.push(response);
+                });
+                stream.on('end', () => {
+                    resolve(responses);
+                });
+                stream.on('error', (err: Error) => {
+                    reject(err);
+                });
+            });
+            const responses = await promise;
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert((client.descriptors.page.listBackups.createStream as SinonStub)
+                .getCall(0).calledWith(client.innerApiCalls.listBackups, request));
+            assert.strictEqual(
+                (client.descriptors.page.listBackups.createStream as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+
+        it('invokes listBackupsStream with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListBackupsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedError = new Error('expected');
+            client.descriptors.page.listBackups.createStream = stubPageStreamingCall(undefined, expectedError);
+            const stream = client.listBackupsStream(request);
+            const promise = new Promise((resolve, reject) => {
+                const responses: protos.google.bigtable.admin.v2.Backup[] = [];
+                stream.on('data', (response: protos.google.bigtable.admin.v2.Backup) => {
+                    responses.push(response);
+                });
+                stream.on('end', () => {
+                    resolve(responses);
+                });
+                stream.on('error', (err: Error) => {
+                    reject(err);
+                });
+            });
+            await assert.rejects(promise, expectedError);
+            assert((client.descriptors.page.listBackups.createStream as SinonStub)
+                .getCall(0).calledWith(client.innerApiCalls.listBackups, request));
+            assert.strictEqual(
+                (client.descriptors.page.listBackups.createStream as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
 
-    it('invokes listBackups without error using callback', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListBackupsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
-      ];
-      client.innerApiCalls.listBackups =
-        stubSimpleCallWithCallback(expectedResponse);
-      const promise = new Promise((resolve, reject) => {
-        client.listBackups(
-          request,
-          (
-            err?: Error | null,
-            result?: protos.google.bigtable.admin.v2.IBackup[] | null
-          ) => {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(result);
+        it('uses async iteration with listBackups without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListBackupsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";
+            const expectedResponse = [
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
+              generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
+            ];
+            client.descriptors.page.listBackups.asyncIterate = stubAsyncIterationCall(expectedResponse);
+            const responses: protos.google.bigtable.admin.v2.IBackup[] = [];
+            const iterable = client.listBackupsAsync(request);
+            for await (const resource of iterable) {
+                responses.push(resource!);
             }
-          }
-        );
-      });
-      const response = await promise;
-      assert.deepStrictEqual(response, expectedResponse);
-      assert(
-        (client.innerApiCalls.listBackups as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions /*, callback defined above */)
-      );
-    });
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert.deepStrictEqual(
+                (client.descriptors.page.listBackups.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.descriptors.page.listBackups.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
 
-    it('invokes listBackups with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListBackupsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedOptions = {
-        otherArgs: {
-          headers: {
-            'x-goog-request-params': expectedHeaderRequestParams,
-          },
-        },
-      };
-      const expectedError = new Error('expected');
-      client.innerApiCalls.listBackups = stubSimpleCall(
-        undefined,
-        expectedError
-      );
-      await assert.rejects(client.listBackups(request), expectedError);
-      assert(
-        (client.innerApiCalls.listBackups as SinonStub)
-          .getCall(0)
-          .calledWith(request, expectedOptions, undefined)
-      );
+        it('uses async iteration with listBackups with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(new protos.google.bigtable.admin.v2.ListBackupsRequest());
+            request.parent = '';
+            const expectedHeaderRequestParams = "parent=";const expectedError = new Error('expected');
+            client.descriptors.page.listBackups.asyncIterate = stubAsyncIterationCall(undefined, expectedError);
+            const iterable = client.listBackupsAsync(request);
+            await assert.rejects(async () => {
+                const responses: protos.google.bigtable.admin.v2.IBackup[] = [];
+                for await (const resource of iterable) {
+                    responses.push(resource!);
+                }
+            });
+            assert.deepStrictEqual(
+                (client.descriptors.page.listBackups.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.descriptors.page.listBackups.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
     });
-
-    it('invokes listBackupsStream without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListBackupsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
-      ];
-      client.descriptors.page.listBackups.createStream =
-        stubPageStreamingCall(expectedResponse);
-      const stream = client.listBackupsStream(request);
-      const promise = new Promise((resolve, reject) => {
-        const responses: protos.google.bigtable.admin.v2.Backup[] = [];
-        stream.on(
-          'data',
-          (response: protos.google.bigtable.admin.v2.Backup) => {
-            responses.push(response);
-          }
-        );
-        stream.on('end', () => {
-          resolve(responses);
-        });
-        stream.on('error', (err: Error) => {
-          reject(err);
-        });
-      });
-      const responses = await promise;
-      assert.deepStrictEqual(responses, expectedResponse);
-      assert(
-        (client.descriptors.page.listBackups.createStream as SinonStub)
-          .getCall(0)
-          .calledWith(client.innerApiCalls.listBackups, request)
-      );
-      assert.strictEqual(
-        (client.descriptors.page.listBackups.createStream as SinonStub).getCall(
-          0
-        ).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
+    describe('getLocation', () => {
+        it('invokes getLocation without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new LocationProtos.google.cloud.location.GetLocationRequest()
+            );
+            request.name = '';
+            const expectedHeaderRequestParams = 'name=';
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(
+                new LocationProtos.google.cloud.location.Location()
+            );
+            client.locationsClient.getLocation = stubSimpleCall(expectedResponse);
+            const response = await client.getLocation(request, expectedOptions);
+            assert.deepStrictEqual(response, [expectedResponse]);
+            assert((client.locationsClient.getLocation as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
+        it('invokes getLocation without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new LocationProtos.google.cloud.location.GetLocationRequest()
+            );
+            request.name = '';
+            const expectedHeaderRequestParams = 'name=';
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedResponse = generateSampleMessage(
+                new LocationProtos.google.cloud.location.Location()
+            );
+            client.locationsClient.getLocation = sinon.stub().callsArgWith(2, null, expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.getLocation(
+                    request,
+                    expectedOptions,
+                    (
+                        err?: Error | null,
+                        result?: LocationProtos.google.cloud.location.ILocation | null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.locationsClient.getLocation as SinonStub)
+                .getCall(0));
+        });
+        it('invokes getLocation with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new LocationProtos.google.cloud.location.GetLocationRequest()
+            );
+            request.name = '';
+            const expectedHeaderRequestParams = 'name=';
+            const expectedOptions = {
+                otherArgs: {
+                    headers: {
+                        'x-goog-request-params': expectedHeaderRequestParams,
+                    },
+                },
+            };
+            const expectedError = new Error('expected');
+            client.locationsClient.getLocation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(client.getLocation(request, expectedOptions), expectedError);
+            assert((client.locationsClient.getLocation as SinonStub)
+                .getCall(0).calledWith(request, expectedOptions, undefined));
+        });
     });
-
-    it('invokes listBackupsStream with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListBackupsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedError = new Error('expected');
-      client.descriptors.page.listBackups.createStream = stubPageStreamingCall(
-        undefined,
-        expectedError
-      );
-      const stream = client.listBackupsStream(request);
-      const promise = new Promise((resolve, reject) => {
-        const responses: protos.google.bigtable.admin.v2.Backup[] = [];
-        stream.on(
-          'data',
-          (response: protos.google.bigtable.admin.v2.Backup) => {
-            responses.push(response);
-          }
-        );
-        stream.on('end', () => {
-          resolve(responses);
-        });
-        stream.on('error', (err: Error) => {
-          reject(err);
-        });
-      });
-      await assert.rejects(promise, expectedError);
-      assert(
-        (client.descriptors.page.listBackups.createStream as SinonStub)
-          .getCall(0)
-          .calledWith(client.innerApiCalls.listBackups, request)
-      );
-      assert.strictEqual(
-        (client.descriptors.page.listBackups.createStream as SinonStub).getCall(
-          0
-        ).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
+    describe('listLocationsAsync', () => {
+        it('uses async iteration with listLocations without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new LocationProtos.google.cloud.location.ListLocationsRequest()
+            );
+            request.name = '';
+            const expectedHeaderRequestParams = 'name=';
+            const expectedResponse = [
+                generateSampleMessage(
+                    new LocationProtos.google.cloud.location.Location()
+                ),
+                generateSampleMessage(
+                    new LocationProtos.google.cloud.location.Location()
+                ),
+                generateSampleMessage(
+                    new LocationProtos.google.cloud.location.Location()
+                ),
+            ];
+            client.locationsClient.descriptors.page.listLocations.asyncIterate = stubAsyncIterationCall(expectedResponse);
+            const responses: LocationProtos.google.cloud.location.ILocation[] = [];
+            const iterable = client.listLocationsAsync(request);
+            for await (const resource of iterable) {
+                responses.push(resource!);
+            }
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert.deepStrictEqual(
+                (client.locationsClient.descriptors.page.listLocations.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.locationsClient.descriptors.page.listLocations.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
+        it('uses async iteration with listLocations with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(
+                new LocationProtos.google.cloud.location.ListLocationsRequest()
+            );
+            request.name = '';
+            const expectedHeaderRequestParams = 'name=';
+            const expectedError = new Error('expected');
+            client.locationsClient.descriptors.page.listLocations.asyncIterate = stubAsyncIterationCall(undefined, expectedError);
+            const iterable = client.listLocationsAsync(request);
+            await assert.rejects(async () => {
+                const responses: LocationProtos.google.cloud.location.ILocation[] = [];
+                for await (const resource of iterable) {
+                    responses.push(resource!);
+                }
+            });
+            assert.deepStrictEqual(
+                (client.locationsClient.descriptors.page.listLocations.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+            assert.strictEqual(
+                (client.locationsClient.descriptors.page.listLocations.asyncIterate as SinonStub)
+                    .getCall(0).args[2].otherArgs.headers['x-goog-request-params'],
+                expectedHeaderRequestParams
+            );
+        });
     });
-
-    it('uses async iteration with listBackups without error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListBackupsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedResponse = [
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
-        generateSampleMessage(new protos.google.bigtable.admin.v2.Backup()),
-      ];
-      client.descriptors.page.listBackups.asyncIterate =
-        stubAsyncIterationCall(expectedResponse);
-      const responses: protos.google.bigtable.admin.v2.IBackup[] = [];
-      const iterable = client.listBackupsAsync(request);
-      for await (const resource of iterable) {
-        responses.push(resource!);
-      }
-      assert.deepStrictEqual(responses, expectedResponse);
-      assert.deepStrictEqual(
-        (client.descriptors.page.listBackups.asyncIterate as SinonStub).getCall(
-          0
-        ).args[1],
-        request
-      );
-      assert.strictEqual(
-        (client.descriptors.page.listBackups.asyncIterate as SinonStub).getCall(
-          0
-        ).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
+    describe('getOperation', () => {
+        it('invokes getOperation without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.GetOperationRequest()
+            );
+            const expectedResponse = generateSampleMessage(
+                new operationsProtos.google.longrunning.Operation()
+            );
+            client.operationsClient.getOperation = stubSimpleCall(expectedResponse);
+            const response = await client.getOperation(request);
+            assert.deepStrictEqual(response, [expectedResponse]);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0).calledWith(request)
+            );
+        });
+        it('invokes getOperation without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.GetOperationRequest()
+            );
+            const expectedResponse = generateSampleMessage(
+                new operationsProtos.google.longrunning.Operation()
+            );
+            client.operationsClient.getOperation = sinon.stub().callsArgWith(2, null, expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.operationsClient.getOperation(
+                    request,
+                    undefined,
+                    (
+                        err?: Error | null,
+                        result?: operationsProtos.google.longrunning.Operation | null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0));
+        });
+        it('invokes getOperation with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.GetOperationRequest()
+            );
+            const expectedError = new Error('expected');
+            client.operationsClient.getOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(async () => {await client.getOperation(request)}, expectedError);
+            assert((client.operationsClient.getOperation as SinonStub)
+                .getCall(0).calledWith(request));
+        });
     });
-
-    it('uses async iteration with listBackups with error', async () => {
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      const request = generateSampleMessage(
-        new protos.google.bigtable.admin.v2.ListBackupsRequest()
-      );
-      request.parent = '';
-      const expectedHeaderRequestParams = 'parent=';
-      const expectedError = new Error('expected');
-      client.descriptors.page.listBackups.asyncIterate = stubAsyncIterationCall(
-        undefined,
-        expectedError
-      );
-      const iterable = client.listBackupsAsync(request);
-      await assert.rejects(async () => {
-        const responses: protos.google.bigtable.admin.v2.IBackup[] = [];
-        for await (const resource of iterable) {
-          responses.push(resource!);
-        }
-      });
-      assert.deepStrictEqual(
-        (client.descriptors.page.listBackups.asyncIterate as SinonStub).getCall(
-          0
-        ).args[1],
-        request
-      );
-      assert.strictEqual(
-        (client.descriptors.page.listBackups.asyncIterate as SinonStub).getCall(
-          0
-        ).args[2].otherArgs.headers['x-goog-request-params'],
-        expectedHeaderRequestParams
-      );
+    describe('cancelOperation', () => {
+        it('invokes cancelOperation without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.CancelOperationRequest()
+            );
+            const expectedResponse = generateSampleMessage(
+                new protos.google.protobuf.Empty()
+            );
+            client.operationsClient.cancelOperation = stubSimpleCall(expectedResponse);
+            const response = await client.cancelOperation(request);
+            assert.deepStrictEqual(response, [expectedResponse]);
+            assert((client.operationsClient.cancelOperation as SinonStub)
+                .getCall(0).calledWith(request)
+            );
+        });
+        it('invokes cancelOperation without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.CancelOperationRequest()
+            );
+            const expectedResponse = generateSampleMessage(
+                new protos.google.protobuf.Empty()
+            );
+            client.operationsClient.cancelOperation = sinon.stub().callsArgWith(2, null, expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.operationsClient.cancelOperation(
+                    request,
+                    undefined,
+                    (
+                        err?: Error | null,
+                        result?: protos.google.protobuf.Empty | null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.operationsClient.cancelOperation as SinonStub)
+                .getCall(0));
+        });
+        it('invokes cancelOperation with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.CancelOperationRequest()
+            );
+            const expectedError = new Error('expected');
+            client.operationsClient.cancelOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(async () => {await client.cancelOperation(request)}, expectedError);
+            assert((client.operationsClient.cancelOperation as SinonStub)
+                .getCall(0).calledWith(request));
+        });
     });
-  });
-
-  describe('Path templates', () => {
-    describe('appProfile', () => {
-      const fakePath = '/rendered/path/appProfile';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-        app_profile: 'appProfileValue',
-      };
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      client.pathTemplates.appProfilePathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.appProfilePathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('appProfilePath', () => {
-        const result = client.appProfilePath(
-          'projectValue',
-          'instanceValue',
-          'appProfileValue'
-        );
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.appProfilePathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromAppProfileName', () => {
-        const result = client.matchProjectFromAppProfileName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.appProfilePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromAppProfileName', () => {
-        const result = client.matchInstanceFromAppProfileName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.appProfilePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchAppProfileFromAppProfileName', () => {
-        const result = client.matchAppProfileFromAppProfileName(fakePath);
-        assert.strictEqual(result, 'appProfileValue');
-        assert(
-          (client.pathTemplates.appProfilePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
+    describe('deleteOperation', () => {
+        it('invokes deleteOperation without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            client.initialize();
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.DeleteOperationRequest()
+            );
+            const expectedResponse = generateSampleMessage(
+                new protos.google.protobuf.Empty()
+            );
+            client.operationsClient.deleteOperation = stubSimpleCall(expectedResponse);
+            const response = await client.deleteOperation(request);
+            assert.deepStrictEqual(response, [expectedResponse]);
+            assert((client.operationsClient.deleteOperation as SinonStub)
+                .getCall(0).calledWith(request)
+            );
+        });
+        it('invokes deleteOperation without error using callback', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.DeleteOperationRequest()
+            );
+            const expectedResponse = generateSampleMessage(
+                new protos.google.protobuf.Empty()
+            );
+            client.operationsClient.deleteOperation = sinon.stub().callsArgWith(2, null, expectedResponse);
+            const promise = new Promise((resolve, reject) => {
+                 client.operationsClient.deleteOperation(
+                    request,
+                    undefined,
+                    (
+                        err?: Error | null,
+                        result?: protos.google.protobuf.Empty | null
+                    ) => {
+                        if (err) {
+                            reject(err);
+                        } else {
+                            resolve(result);
+                        }
+                    });
+            });
+            const response = await promise;
+            assert.deepStrictEqual(response, expectedResponse);
+            assert((client.operationsClient.deleteOperation as SinonStub)
+                .getCall(0));
+        });
+        it('invokes deleteOperation with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.DeleteOperationRequest()
+            );
+            const expectedError = new Error('expected');
+            client.operationsClient.deleteOperation = stubSimpleCall(undefined, expectedError);
+            await assert.rejects(async () => {await client.deleteOperation(request)}, expectedError);
+            assert((client.operationsClient.deleteOperation as SinonStub)
+                .getCall(0).calledWith(request));
+        });
     });
-
-    describe('backup', () => {
-      const fakePath = '/rendered/path/backup';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-        cluster: 'clusterValue',
-        backup: 'backupValue',
-      };
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      client.pathTemplates.backupPathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.backupPathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('backupPath', () => {
-        const result = client.backupPath(
-          'projectValue',
-          'instanceValue',
-          'clusterValue',
-          'backupValue'
-        );
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.backupPathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromBackupName', () => {
-        const result = client.matchProjectFromBackupName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.backupPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromBackupName', () => {
-        const result = client.matchInstanceFromBackupName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.backupPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchClusterFromBackupName', () => {
-        const result = client.matchClusterFromBackupName(fakePath);
-        assert.strictEqual(result, 'clusterValue');
-        assert(
-          (client.pathTemplates.backupPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchBackupFromBackupName', () => {
-        const result = client.matchBackupFromBackupName(fakePath);
-        assert.strictEqual(result, 'backupValue');
-        assert(
-          (client.pathTemplates.backupPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
+    describe('listOperationsAsync', () => {
+        it('uses async iteration with listOperations without error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+              credentials: {client_email: 'bogus', private_key: 'bogus'},
+              projectId: 'bogus',
+        });
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.ListOperationsRequest()
+            );
+            const expectedResponse = [
+                generateSampleMessage(
+                    new operationsProtos.google.longrunning.ListOperationsResponse()
+                ),
+                generateSampleMessage(
+                    new operationsProtos.google.longrunning.ListOperationsResponse()
+                ),
+                generateSampleMessage(
+                    new operationsProtos.google.longrunning.ListOperationsResponse()
+                ),
+            ];
+            client.operationsClient.descriptor.listOperations.asyncIterate = stubAsyncIterationCall(expectedResponse);
+            const responses: operationsProtos.google.longrunning.ListOperationsResponse[] = [];
+            const iterable = client.operationsClient.listOperationsAsync(request);
+            for await (const resource of iterable) {
+                responses.push(resource!);
+            }
+            assert.deepStrictEqual(responses, expectedResponse);
+            assert.deepStrictEqual(
+                (client.operationsClient.descriptor.listOperations.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+        });
+        it('uses async iteration with listOperations with error', async () => {
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            const request = generateSampleMessage(
+                new operationsProtos.google.longrunning.ListOperationsRequest()
+            );
+            const expectedError = new Error('expected');
+            client.operationsClient.descriptor.listOperations.asyncIterate = stubAsyncIterationCall(undefined, expectedError);
+            const iterable = client.operationsClient.listOperationsAsync(request);
+            await assert.rejects(async () => {
+                const responses: operationsProtos.google.longrunning.ListOperationsResponse[] = [];
+                for await (const resource of iterable) {
+                    responses.push(resource!);
+                }
+            });
+            assert.deepStrictEqual(
+                (client.operationsClient.descriptor.listOperations.asyncIterate as SinonStub)
+                    .getCall(0).args[1], request);
+        });
     });
 
-    describe('cluster', () => {
-      const fakePath = '/rendered/path/cluster';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-        cluster: 'clusterValue',
-      };
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      client.pathTemplates.clusterPathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.clusterPathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('clusterPath', () => {
-        const result = client.clusterPath(
-          'projectValue',
-          'instanceValue',
-          'clusterValue'
-        );
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.clusterPathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromClusterName', () => {
-        const result = client.matchProjectFromClusterName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.clusterPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromClusterName', () => {
-        const result = client.matchInstanceFromClusterName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.clusterPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchClusterFromClusterName', () => {
-        const result = client.matchClusterFromClusterName(fakePath);
-        assert.strictEqual(result, 'clusterValue');
-        assert(
-          (client.pathTemplates.clusterPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-    });
+    describe('Path templates', () => {
+
+        describe('appProfile', () => {
+            const fakePath = "/rendered/path/appProfile";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+                app_profile: "appProfileValue",
+            };
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.appProfilePathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.appProfilePathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('appProfilePath', () => {
+                const result = client.appProfilePath("projectValue", "instanceValue", "appProfileValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.appProfilePathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromAppProfileName', () => {
+                const result = client.matchProjectFromAppProfileName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.appProfilePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromAppProfileName', () => {
+                const result = client.matchInstanceFromAppProfileName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.appProfilePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchAppProfileFromAppProfileName', () => {
+                const result = client.matchAppProfileFromAppProfileName(fakePath);
+                assert.strictEqual(result, "appProfileValue");
+                assert((client.pathTemplates.appProfilePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
 
-    describe('hotTablet', () => {
-      const fakePath = '/rendered/path/hotTablet';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-        cluster: 'clusterValue',
-        hot_tablet: 'hotTabletValue',
-      };
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      client.pathTemplates.hotTabletPathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.hotTabletPathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('hotTabletPath', () => {
-        const result = client.hotTabletPath(
-          'projectValue',
-          'instanceValue',
-          'clusterValue',
-          'hotTabletValue'
-        );
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.hotTabletPathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromHotTabletName', () => {
-        const result = client.matchProjectFromHotTabletName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromHotTabletName', () => {
-        const result = client.matchInstanceFromHotTabletName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchClusterFromHotTabletName', () => {
-        const result = client.matchClusterFromHotTabletName(fakePath);
-        assert.strictEqual(result, 'clusterValue');
-        assert(
-          (client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchHotTabletFromHotTabletName', () => {
-        const result = client.matchHotTabletFromHotTabletName(fakePath);
-        assert.strictEqual(result, 'hotTabletValue');
-        assert(
-          (client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-    });
+        describe('backup', () => {
+            const fakePath = "/rendered/path/backup";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+                cluster: "clusterValue",
+                backup: "backupValue",
+            };
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.backupPathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.backupPathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('backupPath', () => {
+                const result = client.backupPath("projectValue", "instanceValue", "clusterValue", "backupValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.backupPathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromBackupName', () => {
+                const result = client.matchProjectFromBackupName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.backupPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromBackupName', () => {
+                const result = client.matchInstanceFromBackupName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.backupPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchClusterFromBackupName', () => {
+                const result = client.matchClusterFromBackupName(fakePath);
+                assert.strictEqual(result, "clusterValue");
+                assert((client.pathTemplates.backupPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchBackupFromBackupName', () => {
+                const result = client.matchBackupFromBackupName(fakePath);
+                assert.strictEqual(result, "backupValue");
+                assert((client.pathTemplates.backupPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
 
-    describe('instance', () => {
-      const fakePath = '/rendered/path/instance';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-      };
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      client.pathTemplates.instancePathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.instancePathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('instancePath', () => {
-        const result = client.instancePath('projectValue', 'instanceValue');
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.instancePathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromInstanceName', () => {
-        const result = client.matchProjectFromInstanceName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.instancePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromInstanceName', () => {
-        const result = client.matchInstanceFromInstanceName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.instancePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-    });
+        describe('cluster', () => {
+            const fakePath = "/rendered/path/cluster";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+                cluster: "clusterValue",
+            };
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.clusterPathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.clusterPathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('clusterPath', () => {
+                const result = client.clusterPath("projectValue", "instanceValue", "clusterValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.clusterPathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromClusterName', () => {
+                const result = client.matchProjectFromClusterName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.clusterPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromClusterName', () => {
+                const result = client.matchInstanceFromClusterName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.clusterPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchClusterFromClusterName', () => {
+                const result = client.matchClusterFromClusterName(fakePath);
+                assert.strictEqual(result, "clusterValue");
+                assert((client.pathTemplates.clusterPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
 
-    describe('snapshot', () => {
-      const fakePath = '/rendered/path/snapshot';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-        cluster: 'clusterValue',
-        snapshot: 'snapshotValue',
-      };
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      client.pathTemplates.snapshotPathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.snapshotPathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('snapshotPath', () => {
-        const result = client.snapshotPath(
-          'projectValue',
-          'instanceValue',
-          'clusterValue',
-          'snapshotValue'
-        );
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.snapshotPathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromSnapshotName', () => {
-        const result = client.matchProjectFromSnapshotName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.snapshotPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromSnapshotName', () => {
-        const result = client.matchInstanceFromSnapshotName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.snapshotPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchClusterFromSnapshotName', () => {
-        const result = client.matchClusterFromSnapshotName(fakePath);
-        assert.strictEqual(result, 'clusterValue');
-        assert(
-          (client.pathTemplates.snapshotPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchSnapshotFromSnapshotName', () => {
-        const result = client.matchSnapshotFromSnapshotName(fakePath);
-        assert.strictEqual(result, 'snapshotValue');
-        assert(
-          (client.pathTemplates.snapshotPathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-    });
+        describe('hotTablet', () => {
+            const fakePath = "/rendered/path/hotTablet";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+                cluster: "clusterValue",
+                hot_tablet: "hotTabletValue",
+            };
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.hotTabletPathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.hotTabletPathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('hotTabletPath', () => {
+                const result = client.hotTabletPath("projectValue", "instanceValue", "clusterValue", "hotTabletValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.hotTabletPathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromHotTabletName', () => {
+                const result = client.matchProjectFromHotTabletName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromHotTabletName', () => {
+                const result = client.matchInstanceFromHotTabletName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchClusterFromHotTabletName', () => {
+                const result = client.matchClusterFromHotTabletName(fakePath);
+                assert.strictEqual(result, "clusterValue");
+                assert((client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchHotTabletFromHotTabletName', () => {
+                const result = client.matchHotTabletFromHotTabletName(fakePath);
+                assert.strictEqual(result, "hotTabletValue");
+                assert((client.pathTemplates.hotTabletPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
+
+        describe('instance', () => {
+            const fakePath = "/rendered/path/instance";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+            };
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.instancePathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.instancePathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('instancePath', () => {
+                const result = client.instancePath("projectValue", "instanceValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.instancePathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromInstanceName', () => {
+                const result = client.matchProjectFromInstanceName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.instancePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromInstanceName', () => {
+                const result = client.matchInstanceFromInstanceName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.instancePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
 
-    describe('table', () => {
-      const fakePath = '/rendered/path/table';
-      const expectedParameters = {
-        project: 'projectValue',
-        instance: 'instanceValue',
-        table: 'tableValue',
-      };
-      const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
-        credentials: {client_email: 'bogus', private_key: 'bogus'},
-        projectId: 'bogus',
-      });
-      client.initialize();
-      client.pathTemplates.tablePathTemplate.render = sinon
-        .stub()
-        .returns(fakePath);
-      client.pathTemplates.tablePathTemplate.match = sinon
-        .stub()
-        .returns(expectedParameters);
-
-      it('tablePath', () => {
-        const result = client.tablePath(
-          'projectValue',
-          'instanceValue',
-          'tableValue'
-        );
-        assert.strictEqual(result, fakePath);
-        assert(
-          (client.pathTemplates.tablePathTemplate.render as SinonStub)
-            .getCall(-1)
-            .calledWith(expectedParameters)
-        );
-      });
-
-      it('matchProjectFromTableName', () => {
-        const result = client.matchProjectFromTableName(fakePath);
-        assert.strictEqual(result, 'projectValue');
-        assert(
-          (client.pathTemplates.tablePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchInstanceFromTableName', () => {
-        const result = client.matchInstanceFromTableName(fakePath);
-        assert.strictEqual(result, 'instanceValue');
-        assert(
-          (client.pathTemplates.tablePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
-
-      it('matchTableFromTableName', () => {
-        const result = client.matchTableFromTableName(fakePath);
-        assert.strictEqual(result, 'tableValue');
-        assert(
-          (client.pathTemplates.tablePathTemplate.match as SinonStub)
-            .getCall(-1)
-            .calledWith(fakePath)
-        );
-      });
+        describe('snapshot', () => {
+            const fakePath = "/rendered/path/snapshot";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+                cluster: "clusterValue",
+                snapshot: "snapshotValue",
+            };
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.snapshotPathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.snapshotPathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('snapshotPath', () => {
+                const result = client.snapshotPath("projectValue", "instanceValue", "clusterValue", "snapshotValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.snapshotPathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromSnapshotName', () => {
+                const result = client.matchProjectFromSnapshotName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.snapshotPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromSnapshotName', () => {
+                const result = client.matchInstanceFromSnapshotName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.snapshotPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchClusterFromSnapshotName', () => {
+                const result = client.matchClusterFromSnapshotName(fakePath);
+                assert.strictEqual(result, "clusterValue");
+                assert((client.pathTemplates.snapshotPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchSnapshotFromSnapshotName', () => {
+                const result = client.matchSnapshotFromSnapshotName(fakePath);
+                assert.strictEqual(result, "snapshotValue");
+                assert((client.pathTemplates.snapshotPathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
+
+        describe('table', () => {
+            const fakePath = "/rendered/path/table";
+            const expectedParameters = {
+                project: "projectValue",
+                instance: "instanceValue",
+                table: "tableValue",
+            };
+            const client = new bigtabletableadminModule.v2.BigtableTableAdminClient({
+                credentials: {client_email: 'bogus', private_key: 'bogus'},
+                projectId: 'bogus',
+            });
+            client.initialize();
+            client.pathTemplates.tablePathTemplate.render =
+                sinon.stub().returns(fakePath);
+            client.pathTemplates.tablePathTemplate.match =
+                sinon.stub().returns(expectedParameters);
+
+            it('tablePath', () => {
+                const result = client.tablePath("projectValue", "instanceValue", "tableValue");
+                assert.strictEqual(result, fakePath);
+                assert((client.pathTemplates.tablePathTemplate.render as SinonStub)
+                    .getCall(-1).calledWith(expectedParameters));
+            });
+
+            it('matchProjectFromTableName', () => {
+                const result = client.matchProjectFromTableName(fakePath);
+                assert.strictEqual(result, "projectValue");
+                assert((client.pathTemplates.tablePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchInstanceFromTableName', () => {
+                const result = client.matchInstanceFromTableName(fakePath);
+                assert.strictEqual(result, "instanceValue");
+                assert((client.pathTemplates.tablePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+
+            it('matchTableFromTableName', () => {
+                const result = client.matchTableFromTableName(fakePath);
+                assert.strictEqual(result, "tableValue");
+                assert((client.pathTemplates.tablePathTemplate.match as SinonStub)
+                    .getCall(-1).calledWith(fakePath));
+            });
+        });
     });
-  });
 });